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Salutations to Prof. Dr. Robert G. Wetzel

.... a Scientific Director of Soil & Water Conservation Society of Metro Halifax (SWCSMH)
and a 1992 recipient of the highest international honour in Limnology,
the Naumann-Thienemann Medal! ....

...... and his professional altruism concept ......


streamWAlabamarev.jpg



{Bob departed Mother Earth on Monday April 18, 2005 at 21:00 hrs and the universe may never see another such altruistic scientist again!}

"I am an avid consumer of Hutchinson's words and syntheses with an appreciation similar to that held for Darwin; both are members of a group that appears only rarely in a particular discipline, perhaps once in a generation. As one reporter wrote, Hutchinson was a sage of enlightenment. It was a privilege to have known him, largely through his works. It is an honor to be associated by means of the Hutchinson Medal" ...... Bob Wetzel's response on receiving the 1992 Hutchinson Medal of the ASLO!

July 02, 2015                Awards & Important Personalities

Contents:



Present Position


Education


Employment

1954-62:
U.S. Naval Reserve (Electronics; Honorable Discharge)
1955:
Assistant, Michigan Department of Conservation
1956:
Assistant, U.S. Fish and Wildlife Service, Alaska
1957-58:
Research Assistant, U.S. Fish and Wildlife Service, Michigan
1958-59:
Teaching Assistant, University of Michigan, Ann Arbor pond.jpg
1959:
Research Technician, U.S. Fish and Wildlife Service, Michigan
1959-62:
Research Assistant, University of California, Davis
1960-61:
Teaching Assistant, University of California, Davis
1962-65:
Research Associate, Indiana University, Bloomington
1965-68:
Assistant Professor of Botany, Michigan State University
1968-71:
Associate Professor of Botany, Michigan State University
1971-79:
Professor of Botany, Michigan State University
1979-86:
Professor of Botany and Adjunct Professor of Zoology, Michigan State University
1982-Life:
Erlander Professor, Institute of Limnology, Uppsala University, Uppsala, Sweden
1986-1990:
Professor of Biology, University of Michigan
1990-2001:
Bishop Professor of Biology, University of Alabama
2001-2003:
Professor of Environmental Sciences and Engineering, University of North Carolina
2003-
William R. Kenan University Professor, University of North Carolina


Languages


Professional Organizations:

Offices Held in Professional Organizations

  1. General Secretary and Treasurer, Editor-in-Chief, and Member of Executive Board, International Association for Theoretical and Applied Limnology
    Elected 1968-1971
    Re-elected 1971-1974
    Re-elected 1974-1977
    Re-elected 1977-1980
    Re-elected 1980-1983
    Re-elected 1983-1986
    Re-elected 1986-1989
    Re-elected 1989-1992
    Re-elected 1992-1995
    Re-elected 1995-1998
    Re-elected 1998-2001
    Re-elected 2001-2004
  2. Co-Editor, Communications, International Association for Theoretical and Applied Limnology (1968-present)
  3. Member-at-Large and Member of Board of Directors, American Society of Limnology and Oceanography (1968-1971)
  4. Member of Editorial Board, American Society of Limnology and Oceanography (1971-1974)
  5. Consultant, International Biological Program, London (1967-1975)
  6. U.S. Representative, Aquatic Ecology Commission, International Association of Ecology (1968-present)
  7. Member, International Seagrass Commission (1974-1975)
  8. Member-at-Large and Member of Board of Directors, Ecological Society of America (1970-1972)
  9. Member of Editorial Board, Aquatic Botany (1975-present)
  10. Advisory Council, Electric Power Research Institute (1977-1992)
  11. Chairman, Nominating Committee, American Society of Limnology and Oceanography (1976-1977)
  12. Vice President, American Society of Limnology and Oceanography (1979-1980)
  13. First President, International Association of Aquatic Vascular Plant Biologists (1979-1987)
  14. President, American Society of Limnology and Oceanography (1980-1981)
  15. Co-Editor, Archiv für Hydrobiologie (1981-1988)
  16. Member Editorial Board, Journal of Aquatic Biology (1984-present)
  17. Editorial Board, Journal of Tropical Freshwater Ecology (1987-present)
  18. Member, Great Lakes Advisory Committee, U.S.-Canada International Joint Commission (1986-1987)
  19. North American Editor, Archiv f. Hydrobiologie (Main Volumes, Supplements, Ergebnisse), (1988-present)
  20. Co-Editor, Aquatic Botany (1979-present)
  21. Executive Member, Council of the International Lake Environment Committee Foundation (1985-present)
  22. Advisor, Aqua Fennica, Water Association Finland and The Finnish Limnological Society (1990-present)
  23. Scientific Advisory Board Member, Aquatic Resource Center, Tennessee (1990-present)
  24. Member of Editorial Board, International Journal of Salt Lake Research (1991-present)
  25. Associate Editor, Biogeochemistry (1993-present)
  26. Member, Advisory Board, Ecology Prize, Germany (1993-1994)
  27. Member of Editorial Board, Lakes and Reservoirs (1994-present)
  28. Scientific Advisory Board Member, North American Lake Management Society (1994-present)
  29. Editor, Monographs in Aquatic Ecology (Book Series), New York (1996-present)
  30. Co-Editor, Aquatic Ecology (1997-present)
  31. Foreign Editor, Korean Journal of Biological Sciences (1998-present)

    rocks.jpg

  32. Scientific Director, Soil & Water Conservation Society of Metro Halifax (SWCSMH), Nova Scotia, Canada (1998-present)
  33. Advisory Editor, Environmental Conservation (1998-present)
  34. Advisory Editor, Journal of Aquatic Biology (1998-present)
  35. Co-Editor, Journal of Limnology (1999-present)
  36. Co-Editor, Ecological Studies, Hazards and Solutions (1999-present)
  37. Co-Editor, Limnology of Developing Countries, Book Series, International Association of Theoretical and Applied Limnology (1995-present)
  38. Editorial Board, Limnology (1999-present)
  39. Editor, International Association of Theoretical and Applied Limnology (2001-2004)
  40. Chairperson, Scientific Advisory Board, Max-Planck-Institut für Limnologie, Plön, Germany (1992-present)
  41. Editorial Board, Chinese Journal of Oceanology and Limnology (2001-present)
  42. Editorial Board, Limnologia (2001-present)
  43. Editorial Board, Journal of Wetland Biogeochemistry (2002-present)
  44. Editorial Board, International Review of Hydrobiology (2002-present)
  45. Scientific Advisory Board, Max-Planck-Gesellschaft, Münich, Germany (2002)
  46. Editorial Board, Limnology and Oceanography: Methods (2002-present)


Other Professional Activities, Committees, Awards, etc.

  1. Tuition Scholarship, University of Michigan, 1954-1958.
  2. Saylor Award in Fisheries, University of Michigan, 1959.
  3. Ecology Fellowship, Marine Biological Laboratories, Woods Hole, 1961.
  4. Travel Award (NSF) to participate in Symposium on Primary Productivity in Aquatic Environments, Italy, 1964.
  5. Travel Award (NSF) to participate in Symposium on Biogenic Metabolism in Fresh Waters, Germany, 1965.
  6. Elected Fellow, American Association for the Advancement of Science, 1964.
  7. Travel Award (NSF and NIH) to participate in 16th International Congress of Limnology, Poland, 1965.
  8. Travel Award (NSF) to participate in 17th International Congress of Limnology, Israel, 1968.
  9. External Examiner, Department of Zoology, University of Otago, New Zealand, 1970.
  10. Travel Award (NSF) to participate in Symposium on Production Problems of Fresh Waters, Poland, 1970.
  11. Travel Award (USSR Academy of Sciences), Leningrad, 1970.
  12. Travel Award (NSF and Romanian Academy of Sciences) to participate in Symposium on Aquatic Macrophytes, Romania, 1970.
  13. Travel Award (SIL) to participate in 18th International Congress of Limnology, Leningrad, USSR, 1971.
  14. Travel Award (IBP-UNESCO) Symposium on Detritus and Its Ecological Role in Aquatic Ecosystems, Italy, 1972.
  15. Member, Synthesis Advisory Board, International Biological Program, London, 1972.
  16. Member, Advisory Council, Aquatic Plant Management Section, U.S. Department of Agriculture, 1972.
  17. External Examiner, Department of Zoology, Rhodes University, South Africa, 1973.
  18. Member, Stream Ecosystem Workshop, Stroud Research Center, Pennsylvania, 1973.
  19. Member, Decomposition Working Group, 1st International Seagrass Workshop, Amsterdam, 1973.
  20. Travel Award (NSF) 1st International Seagrass Workshop, Amsterdam, 1973.
  21. Travel Award (SIL) to participate in 19th International Congress of Limnology, Canada, 1974.
  22. External Examiner, Department of Biology, Dalhousie University, Nova Scotia, 1974.
  23. Member, Committee for Scientific Presentations, American Society of Limnology and Oceanography, 1975-1976.
  24. Advisor, Aquatic Plant Management Research, University of Florida, 1975.
  25. National Evaluator, Ecology Programs for ERDA-NSF, Battelle Northwest National Laboratories and Lawrence Laboratories, University of California, Berkeley, 1976.
  26. Cited in Who's Who in the World and a number of other international and national biographical archives, 1976-present.
  27. Travel Award (NSF) 2nd International Symposium on Paleolimnology, Poland, 1976.
  28. Travel Award (SIL) to participate in 20th International Congress of Limnology, Denmark, 1977.
  29. Travel Award, Uppsala University to participate in 500th Year Jubilee Celebration of Uppsala University, Sweden, 1977.
  30. External Examiner, Department of Botany, University of Manitoba, Winnipeg, 1978.
  31. Invited Participant, EPA-DOE Workshop on Effects of Acid Precipitation on Aquatic Ecosystems, New York, 1978.
  32. Travel Award (Japanese Academy of Sciences) to organize 21st International Congress of Limnology, Sandi and Kyoto, Japan, 1979.
  33. National Advisor on Ecological Sciences Improvement, State of Arkansas, 1979.
  34. Member, Committee on Biospheric CO2 Enrichment Effects, Institute of Ecology, 1978-present.
  35. External Examiner and Travel Award, Institute of Limnology, University of Lund, Lund, Sweden, April 1980.
  36. Member, International Steering Committee, International Wetlands Committee, International Association for Ecology, 1979-present.
  37. Advisor, Acid Rain Workshop, Electric Power Research Institute, Airlie, Virginia,February 1980.
  38. Member, Biological Effects Advisory Board, National Atmospheric Deposition Program, Environmental Protection Agency, 1980-present.
  39. Advisor, Integrated Lake Watershed Acidification Study, Electric Power Research Institute, Syracuse and Sagamore, New York, September 1980.
  40. Travel Award, 21st Congress of the International Association of Theoretical and Applied Limnology, Kyoto, Japan, August 1980.
  41. Travel Grant, First International Wetlands Conference, New Delhi, India, September 1980 (unable to accept).
  42. Leader, Limnological Exchange Group, and Travel Award, Peoples' Republic of China to:
    • South China Sea Marine Research Institute, Chinese Academy of Sciences, Guangzhow (Canton)
    • Pearl River Institute of Freshwater Products, Guangzhow (Canton)
    • Hydrobiological Institute, Chinese Academy of Sciences (Wuhan)
    • Institute of Botany, Chinese Academy of Sciences, Beijing (Peking)
    • Beijing Municipal Research Institute of Environmental Protection, Beijing (Peking)
    • Shanghai Fisheries Research Institute, Shanghai
    • Department of Sciences, Fudan University, Shanghai, 1980.
  43. Advisor, National Acidic Precipitation Research Evaluation, EPA-EPRI, Atlanta, March 1981.
  44. Chairperson, Aquatic Section, International Study on the Direct Biological Effects on Plants of Increasing Atmospheric CO2, AAAS.DOE-National Academy, 1981-1982.
  45. Chairperson and Organizer, 1st International Workshop on Periphyton in Freshwater Ecosystems, University of Lund, Lund and Växjö, Sweden, September, 1982.
  46. Advisor, Aluminum Biogeochemistry Workshop, EPA-University of Maine-EPRI, Orono, Maine, December 1982.
  47. Travel Award, 22nd Congress of the International Association of Theoretical and Applied Limnology, Lyon, France, August, 1983
  48. Recipient, First Tage Erlander National Professorship, Swedish National Research Council and University of Uppsala, Sweden, 1982-1983.
  49. Advisor, Aluminum Biogeochemistry/Toxicity Workshop, EPRI-DOE, University of Syracuse, New York, 1983.
  50. Member, Publications Council, American Society of Limnology and Oceanography, 1983-1984.
  51. Honorary Doctor of Philosophy Degree, University of Uppsala, Sweden, 1984.
  52. Organizing Committee, Third International Phycological Congress (1985-1988).
  53. Advisor, Paleoecological Investigation of Recent Lake Acidification Workshop, EPRI-University of Michigan, Douglas Lake, Michigan, 1985.
  54. External Doctoral Examiner, University of Tasmania, Hobart, Tasmania, Australia, November 1985.
  55. National Advisor, Scientific Programs in Hydrobiology in Finland, Finnish Academy of Sciences, Helsinki, Finland, 1985.
  56. International Advisor, Scientific Programs in Aquatic Ecology of Denmark, Danish Academy of Sciences, Copenhagen, Denmark, 1986.
  57. Foundation Member, Inaugural Assembly, International Lake Environment Committee, Otsu, Japan, 1986-1996.
  58. Advisor, Regional Integrated Lake Watershed Acidification Study, Workshop, EPRI-EPA, Palo Alto, California, 1986.
  59. External Doctoral Examiner, University of New Delhi, Delhi, India, 1986. memorial.jpg
  60. Steering Committee Member, International Conference on Basic Issues in Great Lakes Research, Michigan, 1986-1987.
  61. Elected Member, Royal Danish Academy of Sciences, Copenhagen, Denmark, 1986.
  62. Advisor, Eastern Brook Lake Watershed Acidification Study, Sierra Workshop, Ontario, California, 1987.
  63. Advisor, ROPIS, Effects of Acidification and Aluminum Toxicity on Forests, Oak Ridge National Laboratory, Oak Ridge, Tennessee (1987), Stanford University (1987), Penn State University (1988), Boyce Thompson Plant Research Institute (1989), and Oregon State University (1990).
  64. Member, Governor's Wetlands Committee, Department of Natural Resources, State of Michigan (1987-1990).
  65. Trustee, Center of Excellence for Ecosystems, Murray State University, Murray, Kentucky (1987-present).
  66. Member, Organizing Committee, International Committee on Biomanipulation, Amsterdam (1988-present).
  67. Advisory Council, Electric Power Research Institute (1977-present)
  68. Advisor, Wetland Ecosystems of the Crystal River, Friends of the Crystal River (1987.present).
  69. External Ph.D. Examiner, University of Patanian Malaysia, Sendang, Malaysia (1988).
  70. External Ph.D. Examiner, University of Tasmania, Australia (1988).
  71. Member, Scientific Advisory Board, Tip of the Mitt Watershed Council, Conway, Michigan (1988-present).
  72. Baldi Memorial Award and Lecturer, International Association of Theoretical and Applied Limnology, 24th Congress, Munich, Federal Republic of Germany, August 1989.
  73. Award of Distinction, University of California, Davis, September 1989.
  74. International Steering Committee, Conference on Land-Water Interactions, New Delhi, India (1990-1991).
  75. Chairperson, Joint Task Group, Periphyton Section, Standard Methods for the Examination of Water and Wastewater, American Public Health Association, Washington, D.C., 1990-present.
  76. Member, Advisory Committee, Lake Baikal Research Association and Baikal International Center for Ecological Research, University of South Carolina (1991-present).
  77. Member, Advisory Committee, Aquatic Ecology, Swedish National Science Research Council, Stockholm, Sweden, 1991.
  78. Associate Director, Southeast Regional Center, National Institute for Global Environmental Change, University of Alabama (1991-1993).
  79. Advisory Committee, Professorship of Limnology, University of Lund, Lund, Sweden, 1991-1992.
  80. Member, Challenges for Limnology Committee, American Society of Limnology and Oceanography, 1991-present.
  81. Co-Editor, Aquatic Plant Management Manual, Environmental Protection Agency and North American Lake Management Society, 1992-present.
  82. Member, Committee on Interdisciplinary Research and Education in the Study of Inland Waters, National Research Council, National Academy of Sciences, Washington, DC, January 1992.
  83. Member, Steering Committee, Freshwater Imperative Workshop, National Science Foundation, Seattle, Washington, 1992-1993.
  84. G. Evelyn Hutchinson Medal, American Society of Limnology and Oceanography, February 1992.
  85. Naumann-Thienemann Medal, International Association of Theoretical and Applied Limnology, Barcelona, Spain, August 1992.
  86. Member, Hutchinson Medal Committee, American Society of Limnology and Oceanography, 1993-1997.
  87. Advisory Committee, Macrophyton Section, Standard Methods for the Examination of Water and Wastewater, American Public Health Association, Washington, DC, 1993-present.
  88. Member, Challenges for Limnology Committee, American Society of Limnology and Oceanography, 1992-1993.
  89. Distinguished Professor, Land-Water Interfaces and Freshwater Aquatic Ecosystems, 21-lecture series, Hydrobiological Center, University of São Carlos, Brazil, August 1993.
  90. Scientific Advisory Board, World Book Encyclopaedia, Chicago, IL, 1993-1996.
  91. Chairperson, Scientific Advisory Board, Max-Planck-Institut für Limnologie, Plön, Germany, 1992-present.
  92. Member, Financial Advisory Committee, American Society of Limnology and Oceanography, 1993-1994.
  93. Member, Organizing Committee, International Workshop on Water Quality and Limnology, Sao Paulo, Brazil, 1995.
  94. Elected Member, American Academy of Arts and Sciences, 1993.
  95. Advisory Board Member, Faculty of Science, Uppsala University, Uppsala, Sweden, 1993.
  96. Honorary Life Member, Asociacion Argentina de Limnologia, Republic of Argentina, 1993- .
  97. External Examiner, Doctor of Science, University of Natal, Pietermaritzburg, South Africa, 1994.
  98. Member, Organizing Committee, Trophic Cascades Conference, Mikolajki, Poland, 1994-1995.
  99. Chairperson, Scientific Advisory Board, Wetlands Division, Savannah River Ecology Laboratory, Aiken, South Carolina, 1994.
  100. Burnum Distinguished Faculty Award, University of Alabama, Tuscaloosa, Alabama, 1994.
  101. Executive Committee Member, National Research Council - National Academy of Sciences Committee on Research and Education in Inland Aquatic Ecosystem Sciences, Washington, DC, 1994-1996.
  102. U.S. Representative, International Water-Related Associations Liaison Committee, Paris, 1994-present.
  103. Distinguished Professor, Aquatic Ecosystem Ecology 24-lecture series, Institüt f. Limnologie und Zoologie, Universität Innsbruck, Innsbruck, Austria, June 1994.
  104. External Assessor of Faculty, University of Pertanian Serdang, Malaysia, 1995-present.
  105. Member, Committee on the Pantanal of South America, Society of Wetland Scientists, 1996-present.
  106. Board Member, Advisory Board, Ecosystems Center, University of Mississippi, Oxford, Mississippi, 1996-present.
  107. Scientific Advisor, Institute for Ecosystem Studies, Millbrook, New York, 1996.
  108. Member, Aquatic Sciences Council, American Society of Limnology and Oceanography, 1996-present.
  109. External Examiner, Graduate Program, Gauhati University, Gauhati, Assam, India, 1996-present.
  110. External Examiner, Graduate Program, Sambalpur University, Sambalpur, Orissa, India, 1996-present.
  111. External Examiner, Graduate Program, University of Kalyani, Kalyani, Bengal, India, 1996-present.
  112. Member, Advisory Board, Journal of Boreal Environmental Research, 1996-present.
  113. Scientific Advisor, Mathematisch-Naturwissenschaftliche Fakultät, Universität zu Köln, Köln, Germany, 1996.
  114. International Advisor, Aquatic Sciences Committee, American Society of Limnology and Oceanography, 1996-present.
  115. Member, Education Planning Committee, American Society of Limnology and Oceanography, 1997-present.
  116. Member, Advisory Board, International Environmental Technology Centre (IETC), Shiga, Japan, 1997-present.
  117. Member, Committee, New York City Watershed Management Strategy, National Research Council, National Academy of Sciences, 1997-1999.
  118. Member Intersociety and International Interactions Committee, American Society of Limnology and Oceanography, 1997-present.
  119. Member, Scientific Coordinating Committee, Diversitas Biodiversity Science, Paris, France, 1998-present.
  120. Member, Scientific Committee, International Conference on Tropical Aquatic Ecosystems, New Delhi, India, 1999-2000.
  121. Member, Technical Sessions, Wetlands 2000 International Conference, Oxford, Mississippi, 1999-2000.
  122. Member, International Scientific Committee, International Conference of Tropical Aquatic Ecosystems, Nainital, India, 1999.
  123. Member, Scientific Committee, International Symposium on Refractory Organic Substances in the Environment, Karlsruhe, Germany, 1999-2000.
  124. Member, Editorial Board, Ecological Studies, Moscow, Russia, 1999-present.
  125. Elected Lifetime Member (of 500 members maximum, worldwide), The International Water Academy, Oslo, Norway, 1999-present.
  126. Executive Committee Member, National Academy of Science Committee on Missouri River Basin: Scientific Basis for Adaptive Management, Washington, DC, 1999-2001.
  127. Faculty Advisor, Department of Ecology, Evolution, and Organismal Biology, Tulane University, New Orleans, Louisiana, 1999-2000.
  128. Lifetime Achievement Award, Society of Wetland Scientists, 2000.
  129. Member, Committee on Protection of Ecology and Resources of the Caspian Sea, National Academy of Science, Washington, DC, 2001.
  130. Member, Editorial Board, Ecological Studies, University of Moscow, Moscow, Russia, 2001-present.
  131. External Examiner, Doctoral Program, University of Calcutta, India, 2001-present.
  132. External Examiner, Doctoral Program, Edith Cowan University, Joondalup, Western Australia, 2001-2003.
  133. External Examiner, Department of Biology, University of Adelaide, Adelaide, Australia, 2001-present.
  134. External Examiner, Doctoral Program, Department of Soil Sciences, University of Florida, Gainesville, Florida 2001-present.
  135. External Examiner, Doctoral Program, University of Adelaide, Australia, 2001-2003.
  136. Steering Committee, International Workshop on Restoration and Management of Eutrophicated Lakes, Kunnan, China, 2001.
  137. External Examiner, Doctoral Program, University of Zürich and EAWAG, Zürich, Switzerland, 2002.
  138. Advisory Board, Aquatic Ecosystems and Organisms, Moscow State University, Russia, 2002.
  139. Member, Publications Committee, American Society of Limnology and Oceanography, 2002-2003.
  140. William R. Kenan Jr. Distinguished Professor, University of North Carolina Chapel Hill, 2003
  141. Member, Aquatic Ecology Programs Committee, National Science Foundation-American Society of Limnology and Oceanography, 2002-2003.
  142. Associate Editor, International Review of Hydrobiology, Germany, 2002-present.
  143. Aquatic Ecologist of Year 2002, Russian Academy of Sciences, Moscow, 2003.
  144. External Evaluator, PhD Dissertation, EAWAG, Dübendorf, Switzerland, 2003.
  145. Member Executive Council, World Water and Climate Network, World Water Forum III, Kyoto, Japan, 2003-present.
  146. External Examiner, D.Sc. Habilitation, Institute of Ecology, University of Vienna, Vienna, Austria, 2003.
  147. Chairperson, Scientific Committee, International Symposium on the Eutrophication Process and Control in Large Shallow Lakes, Nanjing-Wuxi, China, 2005
  148. Referee for Research Proposals of the National Science Foundation (US), US Geological Survery (US), US Environmental Protection Agency (US), Max-Planck-Gesellschaft (Munich), National Science Foundation (Israel), National Science Foundation (Ireland), National Science Board (Great Britain), International Science Foundation (Paris), 1993-present.
  149. Member Program Committee, Aquatic Ecosystems and Organisms International Conference, University of Moscow, Moscow, Russia, April 2004.


wetzel1.jpg

PUBLICATIONS:

BOOKS

  1. Wetzel, R. G. 1975. Limnology. W. B. Saunders Co., Philadelphia. 743 pp.
  2. Wetzel, R. G. and G. E. Likens. 1979. Limnological Analyses. W. B. Saunders Co., Philadelphia. 357 pp.
  3. Wetzel, R. G. 1979. Limnologia. Ediciones Omega, Barcelona. 890 pp. (In Spanish)
  4. Gopal, B., R. E. Turner, R. G. Wetzel and D. Whigham (Editors). 1982. Wetlands Ecology and Management. Proceedings of the 1st International Congress on Wetlands. International Scientific Publications, Jaipur. 514 pp.
  5. Gopal, B., R. E. Turner, R. G. Wetzel and D. F. Whigham (Editors). 1982. Wetlands Ecology and Management. Part II. Proceedings of the 1st International Congress on Wetlands. International Scientific Publications, Jaipur. 156 pp.
  6. Wetzel, R. G. 1983. Limnology. (2nd Edition; Complete Revision) Saunders College Publishing, Philadelphia. 858 pp.
  7. Francko, D. A. and R. G. Wetzel. 1983. To Quench Our Thirst. Present and Future Freshwater Resources of the United States. University of Michigan Press, Ann Arbor. 153 pp.
  8. Wetzel, R. G. (Editor). 1983. Periphyton of Freshwater Ecosystems. Proceedings of the First International Workshop on Periphyton of Freshwater Ecosystems. Developments in Hydrobiology, Vol. 17. B. V. Junk Publishers, The Hague. 356 pp.
  9. Wetzel, R. G. and G. E. Likens. 1991. Limnological Analyses. 2nd Edition. Springer-Verlag, New York. 391 pp.
  10. Wetzel, R. G. 1992. Limnology. 2nd Edition. Hungarian Academy of Sciences. (In Hungarian).
  11. Gopal, B., A. Hillbricht-Ilkowska, and R. G. Wetzel, Editors. 1993. Wetlands and Ecotones: Studies on Land-Water Interactions. National Institute of Ecology, New Delhi. 301 pp.
  12. Wetzel, R. G. 1994. Limnologia. Fundação Calouste Gulbenkian, Av. de Berna, Lisbon, Portugal. 1030 pp. (In Portuguese).
  13. Wetzel, R. G., A. G. van der Valk, R. E. Turner, W. J. Mitsch, and B. Gopal, Editors. 1994. Recent Studies on Ecology and Management of Wetlands. International Scientific Publications, New Delhi. 246 pp.
  14. Gopal, B. and R. G. Wetzel, Editors. 1995. Wetland Ecology. National Institute of Ecology, New Delhi. 320 pp.
  15. Aumen, N. and R. G. Wetzel, Editors. 1995. Lake Okeechobee: A Synthesis. Schweizerbart'sche Verlagsbuchhandlungen, Stuttgart. 356 pp.
  16. Gopal, B. and R. G. Wetzel, Editors. 1995. Limnology of Developing Countries. Vol I. Schweizerbart'sche Verlagsbuchhandlungen, Stuttgart. 230 pp.
  17. Brezonik, P. L., E. R. Blood, W. T. Edmondson, T. M. Frost, E. Gorham, D. R. Knauer, D. M. McKnight, G. W. Minshall, C. R. O’Melia, K. W. Potter, D. B. Premo, D. W. Schindler, and R. G. Wetzel. 1996. Freshwater Ecosystems: Revitalizing Educational Programs in Limnology. National Academy Press, Washington, DC. 364 pp.
  18. Wetzel, R. G. and B. Gopal, Editors. 1999. Limnology of Developing Countries. Vol. II. Schweizerbart’sche Verlagsbuchhandlungen, Stuttgart. 330 pp.
  19. O’Melia, C. R., M. J. Pfeffer, P. K. Barten, G. E. Dickey, M. W. Garcia, C. N. Haas, R. G. Hunter, R. R. Lowrance, C. L. Moe, C. L. Paulson, R. H. Platt, J. L. Schnoor, T. R. Schueler, J. M. Symons, and R. G. Wetzel. 1999. Watershed Management for Potable Water Supply. National Academy Press, Washington, DC. 475 pp.
  20. Wetzel, R. G. and G. E. Likens. 2000. Limnological Analyses. 3rd Edition. Springer-Verlag, New York. 429 pp.
  21. Wetzel, R. G. 2001. Limnology: Lake and River Ecosystems. Academic Press, San Diego. 1006 pp.
  22. Wetzel, R.G., and B. Gopal, Editors. 2001. Limnology of Developing Countries. Vol III. Schweizerbart'sche Verlagsbuchhandlungen, Stuttgart. 189 pp.
  23. Twilley, R. R., E. J. Barron, H. L. Gholz, M. A. Harwell, R. L. Miller, D. J. Reed, J. B. Rose, E. H. Siemann, R. G. Wetzel, and R. J. Zimmerman. 2001. Confronting Climate Change in the Gulf Coast Region. Island Press, California. 96 pp.
  24. Gloss, S. P., R. K. Davis, D. T. ford, G. E. Galloway, L. W. Hesse, W. C. Johnson, P. A. Johnson, K. D. Keenlyne, S. S. Light, E. T. Smerdon, A. D. Tarlock, and R. G. Wetzel.. 2002. The Missouri River Ecosystem: Exploring the Prospects for Recovery. National Academy Press, Washington, DC 175 pp.
  25. Wetzel, R. G. and B. Gopal. 2003. Limnology of Developing Countries. Vol. IV. Schweizerbart'sche Verlagsbuchhandlungen, Stuttgart. (In press)
  26. Wetzel, R. G. 2003. Ecology of Aquatic Plants and Wetland Ecosystems. Academic Press, San Diego (In preparation)
  27. Wetzel R. G. and G. E. Likens, Chief Editors. 2003. Encyclopedia of Aquatic Sciences. Five volume work. Academic Press, San Diego. (In preparation)
  28. Wetzel, R. G., Editor. 2003. A Manual for Assessments of Periphyton Communities. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart. (In preparation)
  29. Wetzel, R. G. 2005. Limnology: Lake and River Ecosystems, 4th Edition and complete revision. Academic Press, San Diego (In preparation)

RESEARCH PUBLICATIONS

  1. Wetzel, R. G. 1960. Marl encrustation on hydrophytes in several Michigan lakes. Oikos 11:223-236.
  2. Wetzel, R. G. 1962. A comparative study of the primary productivity of higher aquatic plants, periphyton, and phytoplankton in a saline lake. Dissertation Abstracts. University of California, Davis, California.
  3. Wetzel, R. G. 1963. Primary productivity of periphyton. Nature (London) 197:1026-1027.
  4. Goldman, C. R. and R. G. Wetzel. 1963. A study of the primary productivity of Clear Lake, Lake County, California. Ecology 44:283-294.
  5. Wetzel, R. G. 1964. A comparative study of the primary productivity of higher aquatic plants, periphyton, and phytoplankton in a large, shallow lake. Int. Rev. ges. Hydrobiol. 49:1-61.
  6. Wetzel, R. G. 1964. Primary productivity of aquatic macrophytes. Verh. Int. Ver. Limnol. 15:426-436.
  7. Wetzel, R. G. 1965. Necessity for decontamination of filters in 14C measured rates of photosynthesis in fresh waters. Ecology 46:540-542.
  8. Wetzel, R. G. 1965. Variations in the morphology of the respiratory organs of aquatic insects. In: Research problems in biology: Investigations. Doubleday and Co., Inc., New York. pp. 171-177.
  9. Wetzel, R. G. 1965. Nutritional aspects of algal productivity in marl lakes with particular reference to enrichment bioassays and their interpretation. Mem. Ist. Ital. Idrobiol. 18 Suppl.:137-157.
  10. Wetzel, R. G. 1965. Techniques and problems of primary productivity measurements in higher aquatic plants and periphyton. Mem. Ist. Ital. Idrobiol. 18 Suppl.:249-267.
  11. Wetzel, R. G. 1966. Variations in productivity of Goose and hypereutrophic Sylvan Lakes, Indiana. Invest. Indiana Lakes Streams 7:147-184.
  12. Wetzel, R. G. and C. R. Goldman. 1966. Mineral nutrients in lake and river waters. In: Handbook of Environmental Biology. Federation of American Societies for Experimental Biology, Washington, D.C. pp. 508-511.
  13. Wetzel, R. G. 1966. Productivity and nutrient relationships in marl lakes of northern Indiana. Verh. Int. Ver. Limnol. 16:321-332.
  14. Wetzel, R. G. 1967. Dissolved organic compounds and their utilization in two marl lakes. J. Hungarian Hydrol. Soc., Hidrologiai Közlöny 47:298-303.
  15. Wetzel, R. G. 1968. Dissolved organic matter and phytoplanktonic productivity in marl lakes. In: Symposium on Biogenic Metabolism in Fresh-waters, Chemistry and Microbiology. Mitt. Int. Ver. Limnol. 14:261-270.
  16. Baird, I. E. and R. G. Wetzel. 1968. A method for the determination of zero thickness activity of C-14 labelled benthic algae in sand. Limnol. Oceanogr. 13:379-382.
  17. McGregor, D. L. and R. G. Wetzel. 1968. Self-absorption of 14C-radiation in ostracods. Ecology 49:352-355.
  18. Wetzel, R. G. and D. L. McGregor. 1968. Axenic culture and nutritional studies of aquatic macrophytes. Amer. Midland Nat. 80:52-64.
  19. Wetzel, R. G. 1968. Review of "Methoden der Hydrobiologie" by Jürgen Schwoerbel. Quart. Rev. Biol. 43:352-353.
  20. Wetzel, R. G. 1969. Factors influencing photosynthesis and excretion of dissolved organic matter by aquatic macrophytes in hard-water lakes. Verh. Int. Ver. Limnol. 17:72-85.
  21. Rich, P. H. and R. G. Wetzel. 1969. A simple, sensitive underwater photometer. Limnol. Oceanogr. 14:611-613.
  22. Wetzel, R. G. 1969. Excretion of dissolved organic compounds by aquatic macrophytes. BioScience 19:539-540.
  23. Wetzel, R. G. 1969. Chapters on: Periphyton; The 14C light and dark bottle technique; The enclosure of macrophyte communities; The enclosure of periphyton communities; Periphyton production rates from changes in biomass. In: Vollenweider, R. A., Editor. A Manual on Methods for Measuring Primary Production in Aquatic Environments. Blackwell, Oxford. pp. 33-40; 70-73; 81-90; 107.
  24. Wetzel, R. G. 1970. Recent and post-glacial production rates of a marl lake. Limnol. Oceanogr. 15:491-503.
  25. Manny, B. A., M. C. Miller and R. G. Wetzel. 1971. Ultraviolet combustion of dissolved organic nitrogen compounds in lake waters. Limnol. Oceanogr. 16:71-85.
  26. Rich, P. H., R. G. Wetzel and N. V. Thuy. 1971. Distribution, production and role of aquatic macrophytes in a southern Michigan marl lake. Freshwater Biol. 1:3-21.
  27. Wetzel, R. G. and B. Ulehlová. 1971. Decomposition and mineral cycling. In: IBP/UNESCO Symposium on Macrophytes. Hidrobiologia (Romania) 12:391-392.
  28. Rich, P. H., R. G. Wetzel and N. Van Thuy. 1971. Distribution, production and role of aquatic macrophytes in a southern Michigan marl lake. In: IBP/UNESCO Symposium on Macrophytes. Hidrobiologia (Romania) 12:199-201.
  29. Kvet, J. and R. G. Wetzel. 1971. Emergent macrophytes. In: IBP/UNESCO Symposium on Macrophytes. Hidrobiologia (Romania) 12:389-390.
  30. Wetzel, R. G. 1972. The role of carbon in hard-water marl lakes. In:  Nutrients and Eutrophication. G. E. Likens, Editor, Spec. Publ. Amer. Soc. Limnol. Oceanogr. 1:84-87.
  31. Wetzel, R. G. and H. L. Allen. 1972. Functions and interactions of dissolved organic matter and the littoral zone in lake metabolism and eutrophication. In: Productivity Problems of Freshwaters, 1970. Z. Kajak and A. Hillbricht-Ilkowska, Editors. PAN Publishers, Warsaw. pp. 333-347.
  32. Rich, P. H. and R. G. Wetzel. 1972. The benthic carbon budget of a marl lake. Verh. Int. Ver. Limnol. 18:157-161.
  33. Wetzel, R. G. and B. A. Manny. 1972. Secretion of dissolved organic carbon and nitrogen by aquatic macrophytes. Verh. Int. Ver. Limnol. 18:162-170.
  34. Hough, R. A. and R. G. Wetzel. 1972. A 14C-assay for photorespiration in aquatic plants. Plant Physiology 49:987-990.
  35. Wetzel, R. G. and B. A. Manny. 1972. Decomposition of dissolved organic carbon and nitrogen compounds from leaves in an experimental hardwater stream. Limnol. Oceanogr. 17:927-931.
  36. Cummins, K. W., M. J. Klug, R. G. Wetzel, K. F. Suberkropp, R. C. Petersen, B. A. Manny, J. C. Wuycheck, F. O. Howard and R. H. King. 1972. Organic enrichment with leaf leachate in experimental lotic ecosystems. BioScience 22:719-722.
  37. Wetzel, R. G., P. H. Rich, M. C. Miller and H. L. Allen. 1972. Metabolism of dissolved and particulate detrital carbon in a temperate hard-water lake. Mem. Ist. Ital. Idrobiol. 29 Suppl.:185-243.
  38. Otsuki, A. and R. G. Wetzel. 1972. Coprecipitation of phosphate with carbonates in a marl lake. Limnol. Oceanogr. 17:763-767.
  39. Wetzel, R. G. 1972. Secretary's Report, 18th Congress of the International Association of Theoretical and Applied Limnology, U.S.S.R. Verh. Int. Ver. Limnol. 18:1-35.
  40. Wetzel, R. G. and P. H. Rich. 1973. Carbon in freshwater systems. In: G. M. Woodwell and E. V. Pecan, Editors. Carbon and the Biosphere. Proc. Brookhaven Symposia in Biology 24: Tech. Information Center, U.S. AEC. CONF-720510. pp. 241-263.
  41. Wetzel, R. G. 1973. Productivity investigations of interconnected marl lakes. I. The eight lakes of the Oliver and Walters chains, northeastern Indiana. Hydrobiological Studies 3:91-143.
  42. Wetzel, R. G. and R. A. Hough. 1973. Productivity and the role of aquatic macrophytes in lakes: An assessment. IBP Workshop on Wetland Ecology. Pol. Arch. Hydrobiol. 20:9-19.
  43. Otsuki, A. and R. G. Wetzel. 1973. Interaction of yellow organic acids with calcium carbonate in freshwater. Limnol. Oceanogr. 18:490-494.
  44. Manny, B. A. and R. G. Wetzel. 1973. Diurnal changes in dissolved organic and inorganic carbon and nitrogen in a hardwater stream. Freshwat. Biol. 3:31-43.
  45. White, W. S. and R. G. Wetzel. 1973. A modified sedimentation trap. Limnol. Oceanogr. 18:986-988.
  46. Fast, A., B. Moss and R. G. Wetzel. 1973. Effects of artificial aeration on the chemistry and algae of two Michigan lakes. Water Resources Res. 9:624-647.
  47. Wetzel, R. G. and A. Otsuki. 1974. Allochthonous organic carbon of a marl lake. Arch. Hydrobiol. 73:31-56.
  48. Otsuki, A. and R. G. Wetzel. 1974. Calcium and total alkalinity budgets and calcium carbonate precipitation of a small hard-water lake. Arch. Hydrobiol. 73:14-30.
  49. Wetzel, R. G. 1974. Review of: A Guide to the Measurement of Marine Primary Production under some Special Conditions. (UNESCO, Paris, 1973). Trans. Amer. Fish Soc. 103:416-417.
  50. Wetzel, R. G. 1974. Symposium Semisaeculare Societas Internationalis Limnologiae. General Secretary's Report. Mitt. Int. Ver. Limnol. 20:31-43.
  51. Fast, A. W. and R. G. Wetzel. 1974. A close-interval fractionator for sediment cores. Ecology 55:202-204.
  52. Otsuki, A. and R. G. Wetzel 1974. Release of dissolved organic matter by autolysis of a submerged macrophyte, Scirpus subterminalis. Limnol. Oceanogr. 19:842-845.
  53. Wetzel, R. G. 1975. Limnology. W. B. Saunders Co., Philadelphia. 743 pp.
  54. Wetzel, R. G. 1975. Primary production. Chapter 10. In: B. A. Whitton, Editor. River Ecology. Cambridge Univ. Press, Cambridge. pp. 230-247.
  55. Hough, R. A. and R. G. Wetzel. 1975. The release of dissolved organic carbon from submersed aquatic macrophytes: diel, seasonal, and community relationships. Verh. Int. Ver. Limnol. 19:939-948.
  56. White, W. S. and R. G. Wetzel. 1975. Nitrogen, phosphorus, particulate and colloidal carbon content of sedimenting seston of a hard-water lake. Verh. Int. Ver. Limnol. 19:330-339.
  57. Manny, B. A., R. G. Wetzel and W. C. Johnson. 1975. Annual contribution of carbon, nitrogen and phosphorus by migrant Canada geese to a hard-water lake. Verh. Int. Ver. Limnol. 19:949-951.
  58. Ward, A. K. and R. G. Wetzel. 1975. Sodium: Some effects on bluegreen algal growth. J. Phycology 11:357-363.
  59. Wetzel, R. G. 1975. Review of: Rodewald-Redescu, L. 1974. Das Schilfrohr. Phragmites communis Trinius. Vol. 27 of Die Binnengewässer. E. Schweizerbart'sche, Stuttgart. 302 pp. Limnol. Oceanogr. 20:1059-1060.
  60. Wetzel, R. G. 1975. General Secretary's Report: Nineteenth Congress, Societas Internationalis Limnologiae. Verh. Int. Ver. Limnol. 19:3232-3292.
  61. Wetzel, R. G. 1976. Review of: Salanki, J. and J. E. Ponyi, Editors. 1975. Limnology of Shallow Waters. Vol. 15 of Symposia Biologica Hungarica. Akad. Kiado, Budapest. 303 pp. Ecology 57:401.
  62. Wetzel, R. G. 1976. Review of: Golterman, H. L. 1975. Physiological Limnology: An Approach to Physiology of Lake Ecosystems. Elsevier, Amsterdam. 489 pp. J. Hydrology 31:195-199.
  63. Wetzel, R. G. 1976. Review of: Hutchinson, G. E. 1975. A Treatise on Limnology. Vol. 3. Limnological Botany. John Wiley & Sons, New York. 660 pp. Limnol. Oceanogr. 21:929-930.
  64. Wetzel, R. G. 1976. Effects of precipitation inputs on macrophytes. In: Proc. Symposium on Atmospheric Contribution to the Chemistry of Lake Waters. (1975) J. Great Lakes Research 2(Suppl. 1):218-221.
  65. McKinley, K. R., A. K. Ward and R. G. Wetzel. 1977. A method for obtaining more precise measures of excreted organic carbon. Limnol. Oceanogr. 22:480-484.
  66. McKinley, K. R. and R. G. Wetzel. 1977. Tritium oxide uptake by algae: An independent measure of phytoplankton photosynthesis. Limnol. Oceanogr. 22:377-380.
  67. Godshalk, G. L. and R. G. Wetzel. 1977. Decomposition of macrophytes and the metabolism of organic matter in sediments. In: Golterman, H. L., Editor. Interactions between Sediments and Water. Dr. W. Junk, Den Haag, Netherlands. pp. 258-264.
  68. Wetzel, R. G. and B. A. Manny. 1977. Seasonal changes in particulate and dissolved organic carbon and nitrogen in a hardwater stream. Arch. Hydrobiol. 80:20-39.
  69. Barko, J. W., P. G. Murphy and R. G. Wetzel. 1977. Primary production and ecosystem metabolism in a Lake Michigan dune pond. Arch. Hydrobiol. 81:155-187.
  70. Hough, R. A. and R. G. Wetzel. 1977. Photosynthetic pathways of some aquatic plants. Aquatic Botany 3:297-313.
  71. Rich, P. H. and R. G. Wetzel. 1978. Detritus in the lake ecosystem. Amer. Naturalist 112:57-71.
  72. Wetzel, R. G. and B. A. Manny. 1978. Postglacial rates of sedimentation, nutrient and fossil pigment deposition in a hardwater marl lake of Michigan. In: Second International Symposium on Paleolimnology. Pol. Arch. Hydrobiol. 25:453-470.
  73. Manny, B. A., R. G. Wetzel and R. E. Bailey. 1978. Paleolimnological sedimentation of organic carbon, nitrogen, phosphorus, fossil pigments, pollen, and diatoms in a hypereutrophic, hardwater lake: A case history of eutrophication. In: Second International Symposium on Paleolimnology. Pol. Arch. Hydrobiol. 25:243-267.
  74. Wissmar, R. C. and R. G. Wetzel. 1978. Analysis of five North American lake ecosystems. VI. Consumer community structure and production. Verh. Int. Ver. Limnol. 20:587-597.
  75. Wetzel, R. G. and J. E. Richey. 1978. Analysis of five North American lake ecosystems. VIII. Control mechanisms and regulation. Verh. Int. Ver. Limnol. 20:605-608.
  76. Cunningham, H. W. and R. G. Wetzel. 1978. Fulvic acid interferences on ATP determinations in sediments. Limnol. Oceanogr. 23:166-173.
  77. Mickle, A. M. and R. G. Wetzel. 1978. Effectiveness of submersed angiosperm-epiphyte complexes on exchange of nutrients and organic carbon in littoral systems. I. Inorganic nutrients. Aquatic Botany 4:303-316.
  78. Mickle, A. M. and R. G. Wetzel. 1978. Effectiveness of submersed angiosperm-epiphyte complexes on exchange of nutrients and organic carbon in littoral systems. II. Dissolved organic carbon. Aquatic Botany 4:317-329.
  79. Hough, R. A. and R. G. Wetzel. 1978. Photorespiration and CO2 compensation point in Najas flexilis. Limnol. Oceanogr. 23:719-724.
  80. Grace, J. B. and R. G. Wetzel. 1978. The production biology of Eurasian watermilfoil (Myriophyllum spicatum L.): A review. J. Aquatic Plant Mgmt. 16:1-11.
  81. Godshalk, G. L. and R. G. Wetzel. 1978. Decomposition in the littoral zone of lakes. In: Good, R. E., D. F. Whigham and R. L. Simpson, Eds. Freshwater Wetlands: Ecological Processes and Management Potential. Academic Press, New York. pp. 131-144.
  82. Wetzel, R. G. 1978. Foreward and Introduction. In: Good, R. E., D. F. Whigham, and R. L. Simpson, Eds. Freshwater Wetlands: Ecological Processes and Management Potential. Academic Press, New York. pp. xiii-xviii.
  83. Godshalk, G. L. and R. G. Wetzel. 1978. Decomposition of aquatic angiosperms. I. Dissolved components. Aquatic Bot. 5:281-300.
  84. Godshalk, G. L. and R. G. Wetzel. 1978. Decomposition of aquatic angiosperms. II. Particulate components. Aquatic Bot. 5:301-328.
  85. Godshalk, G. L. and R. G. Wetzel. 1978. Decomposition of aquatic angiosperms. III. Zostera marina L. and a conceptual model of decomposition. Aquatic Bot. 5:329-354.
  86. Wetzel, R. G. 1978. On foreign languages. BioScience 28:620.
    Wetzel, R. G. and G. E. Likens. 1979. Limnological Analyses. W. B. Saunders Co., Philadelphia. 357 pp.
  87. McKinley, K. R. and R. G. Wetzel. 1979. Photolithotrophy, photoheterotrophy, and chemoheterotrophy: Patterns of resource utilization on an annual and a diurnal basis within a pelagic microbial community. Microb. Ecol. 5:1-15.
  88. Wetzel, R. G. 1979. Report of the General Secretary-Treasurer. 20th Congress of the International Association of Theoretical and Applied Limnology, Copenhagen, Denmark. Verh. Int. Ver. Limnol. 20:2751-2773.
  89. Richey, J. E., R. C. Wissmar, G. E. Likens, R. G. Wetzel, A. Devol, O. Loucks, P. H. Rich, R. Prentki, N. Johnson and W. E. Odum. 1979. Carbon flow in four lake ecosystems: A structural approach. Science 202:1183-1186.
  90. Wetzel, R. G. and P. A. Penhale. 1979. Transport of carbon and excretion of dissolved organic carbon by leaves and roots/rhizomes in seagrasses and their epiphytes. Aquatic Bot. 6:149-158.
  91. Wetzel, R. G. 1979. Limnologia (Translation of 1975 First Edition into Spanish). Ediciones Omega, Barcelona.
  92. Wetzel, R. G. 1979. The role of the littoral zone and detritus in lake metabolism. In: Likens, G. E., W. Rodhe, and C. Serruya, Eds. Symposium on Lake Metabolism and Lake Management. Arch. Hydrobiol. Beih. Ergebnisse Limnol. 13:145-161.
  93. Mickle, A. M. and R. G. Wetzel. 1979. Effectiveness of submersed angiosperm-epiphyte complexes on exchange of nutrients and organic carbon in littoral systems. III. Refractory organic carbon. Aquatic Botany 6:339-355.
  94. Zieman, J. C. and R. G. Wetzel. 1980. Productivity Methods and Rates. Chapter 10. In: R. C. Phillips and C. P. McRoy, Eds. Studies of the Seagrass Ecosystem. Garland Press, New York. pp. 87-116.
  95. Saunders, G. W., K. W. Cummins, R. G. Wetzel, G. Z. Gak, E. Pieczynská and V. Straskrabová. 1980. Organic Matter and Decomposers. In: Synthesis of IBP Investigations. Cambridge University Press, Cambridge. pp. 341-392.
  96. Moss, B., R. G. Wetzel and G. H. Lauff. 1980. Studies on Gull Lake, Michigan. III. Annual productivity and phytoplankton changes between 1979 and 1974. Freshwater Biol. 10:113-121.
  97. Søndergaard, M. and R. G. Wetzel. 1980. Photorespiration and internal recycling of CO2 in the submersed angiosperm Scirpus subterminalis Torr. Can. J. Bot. 58:591-598.
  98. Wetzel, R. G. 1980. Review of "Lakes: Physics, Chemistry, and Geology." A. Lerman, Editor. Trans. Amer. Fish. Soc. 109:343-344.
  99. Wetzel, R. G. 1980. Review of "Microbial Communities of Aquatic Ecosystems." J. Cairns, Editor. Aquatic Botany 7:400-401.
  100. Mitchell, S. F. and R. G. Wetzel. 1980. Bioassay study of effects of zooplankton, iron and NTA on the phytoplankton productivity of a marl lake. Hydrobiologia 68:235-242.
  101. Weaver, C. I. and R. G. Wetzel. 1980. Carbonic anhydrase levels and internal lacunar CO2 concentrations in aquatic macrophytes. Aquatic Bot. 8:173-186.
  102. Stewart, A. J. and R. G. Wetzel. 1980. Fluoresence-absorbance ratios: A molecular-weight tracer of dissolved organic matter. Limnol. Oceanogr. 25:559-564.
  103. Francko, D. A. and R. G. Wetzel. 1980. Cyclic adenosine 3':5'-monophosphate: Production and extracellular release from green and blue-green algae. Physiol. Plant. 49:65-67.
  104. Wetzel, R. G. 1980. Review of "Pond Littoral Ecosystems." D. Dykyjová and J. Kvet, Editors. Limnol. Oceanogr. 25:197.
  105. Crumpton, W. G. and R. G. Wetzel. 1980. Novolacs: Synthetic resins suitable for mounting biological materials. Trans. Amer. Microsc. Soc. 99:347-348.
  106. Ward, A. K. and R. G. Wetzel. 1980. Interactions of light and nitrogen source among planktonic blue-green algae. Archiv f. Hydrobiologie 90:1-25.
  107. Ward, A. K. and R. G. Wetzel. 1980. Photosynthetic responses of blue-green algal populations to variable light intensities. Archiv f. Hydrobiologie 90:129-138.
  108. Stewart, A. J. and R. G. Wetzel. 1981. Asymmetrical relationships among fluorescence, absorbance, and dissolved organic carbon. Limnol. Oceanogr. 25:590-597.
  109. Wetzel, R. G. 1981. General Secretary's Report, 21st Congress, International Association of Theoretical and Applied Limnology, Kyoto, Japan. Verh. Internat. Verein. Limnol. 21:1753-1780.
  110. Grace, J. B. and R. G. Wetzel. 1981. Habitat partitioning and competitive displacement in cattails (Typha): Experimental field studies of the intensity of competition. American Naturalist 118:463-474.
  111. Grace, J. B. and R. G. Wetzel. 1981. Phenotypic and genotypic components of growth and reproduction in Typha latifolia: Experimental studies in marshes of differing successional maturity. Ecology 62:789-801.
  112. Francko, D. A. and R. G. Wetzel. 1981. Dynamics of cellular and extracellular cAMP in Anabaena flos-aquae (Cyanophyta): Intrinsic culture variability and correlation with metabolic variables. J. Phycol. 17:129-134.
  113. Beer, S. and R. G. Wetzel. 1981. Photosynthetic carbon metabolism in the submerged aquatic angiosperm Scirpus subterminalis. Plant Sci. Lett. 21:199-207.
  114. Francko, D. A. and R. G. Wetzel. 1981. Synthesis and release of cyclic adenosine 3':5'-monophosphate by aquatic macrophytes. Physiol. Plant. 52:33-36.
  115. Wetzel, R. G. 1981. Longterm dissolved and particulate alkaline phosphatase activity in a hardwater lake in relation to lake stability and phosphorus enrichments. Verh. Internat. Verein. Limnol. 21:337-349.
  116. Wetzel, R. G. 1981. Review of "Ecology of Fresh Waters" (B. Moss). BioScience 31:773.
  117. Grace, J. B. and R. G. Wetzel. 1981. Effects of size and growth rate on vegetative reproduction in Typha. Oecologia 50:158-161.
  118. Stewart, A. J. and R. G. Wetzel. 1981. Dissolved humic materials: Photodegradation, sediment effects, and reactivity with phosphate and calcium carbonate precipitation. Archiv f. Hydrobiologie 92:265-286.
  119. Crumpton, W. G. and R. G. Wetzel. 1981. A method for the preparation of permanent mounts of phytoplankton for critical microscopy and cell counting. Limnol. Oceanogr. 26:976-980.
  120. Crumpton, W. G. and R. G. Wetzel. 1982. Effects of differential growth and mortality in the seasonal succession of phytoplankton populations in Lawrence Lake, Michigan. Ecology 63:1729-1739.
  121. Francko, D. A. and R. G. Wetzel. 1982. Production and release of cyclic AMP by Daphnia pulex: Effects of grazing activity. J. Freshwat. Ecol. 1:365-371.
  122. Beer, S. and R. G. Wetzel. 1982. Photosynthetic carbon fixation pathways in Zostera marina and three Florida seagrasses. Aquatic Botany 13:141-146.
  123. Stewart, A. J. and R. G. Wetzel. 1982. Phytoplankton contribution to alkaline phosphatase activity. Archiv f. Hydrobiologie 93:265-271.
  124. Beer, S., A. J. Stewart and R. G. Wetzel. 1982. Measuring chlorophyll a and 14C-labelled photosynthate in aquatic angiosperms by the use of a tissue solubilizer. Plant Physiology 69:54-58.
  125. Boon, J. J., R. G. Wetzel and G. L. Godshalk. 1982. Pyrolysis mass spectometry of some Scirpus species and their decomposition products. Limnol. Oceanogr. 27:839-848.
  126. Stewart, A. J. and R. G. Wetzel. 1982. Influence of dissolved humic materials on carbon assimilation and alkaline phosphatase activity in natural algal-bacterial assemblages. Freshwat. Biol. 12:369-380.
  127. Francko, D. A. and R. G. Wetzel. 1982. The isolation of cyclic adenosine 3':5'-monophosphate (cAMP) from lakes of differing trophic status: Correlation with planktonic metabolic variables. Limnol. Oceanogr. 27:27-38.
  128. Wetzel, R. G. 1982. Review of "Estuarine and Wetland Processes with Emphasis on Modeling", edited by P. Hamilton and K. B. Macdonald. Limnol. Oceanogr. 27:395-396.
  129. Glime, J. M., R. G. Wetzel and B. J. Kennedy. 1982. The effects of bryophytes on succession from alkaline marsh to Sphagnum bog. Amer. Midland Nat. 108:209-223.
  130. Beer, S. and R. G. Wetzel. 1982. Photosynthesis in submersed macrophytes of a temperate lake. Plant Physiol. 70:488-492.
  131. Wetzel, R. G. 1982. Review of "Wetland Functions and Values: The State of Our Understanding." (P. E. Greeson, J. R. Clark, and J. E. Clark, Editors). Ecology 63:1193-1194.
  132. Grace, J. B. and R. G. Wetzel. 1982. Variations in growth and reproduction within populations of two rhizomatous plant species: Typha latifolia and Typha angustifolia. Oecologia 53:258-263.
  133. Grace, J. B. and R. G. Wetzel. 1982. Niche differentiation between two rhizomatous plant species: Typha latifolia and Typha angustifolia. Canadian Journal of Botany 60:46-57.
  134. Gopal, B., R. E. Turner, R. G. Wetzel and D. Whigham (Editors). 1982. Wetlands Ecology and Management. Proceedings of the 1st International Congress on Wetlands. International Scientific Publications, Jaipur. 514 pp.
  135. Gopal, B., R. E. Turner, R. G. Wetzel and D. F. Whigham (Editors). 1982. Wetlands Ecology and Management. Part II. Proceedings of the 1st International Congress on Wetlands. International Scientific Publications, Jaipur. 156 pp.
  136. Boon, J. J., W. Windig, R. G. Wetzel and G. L. Godshalk. 1983. The analytical pyrolysis of particulate residues of decomposing Myriophyllum heterophyllum. Aquatic Botany 15:307-320.
  137. Sale, P. J. M. and R. G. Wetzel. 1983. Growth and metabolism of Typha species in relation to cutting treatments. Aquatic Bot. 15:321-334.
    Wetzel, R. G. 1983. Limnology. (2nd Edition; Complete Revision) W. B. Saunders Co., Philadelphia. 858 pp.
  138. Francko, D. A. and R. G. Wetzel. 1983. To Quench Our Thirst. Present and Future Freshwater Resources of the United States. University of Michigan Press, Ann Arbor. 153 pp.
  139. Wetzel, R. G. and J. B. Grace. 1983. Atmospheric CO2 enrichment effects on aquatic plants. In: E. H. Lemon, Editor. The Response of Plants to Rising Levels of Atmospheric Carbon Dioxide. American Association Advancement Science. Washington, D.C. pp. 223-280.
  140. Wetzel, R. G. (Editor). 1983. Periphyton of Aquatic Ecosystems. Developments in Hydrobiology. Vol. 17. B. V. Junk Publishers, The Hague. 346 pp.
  141. Wetzel, R. G. 1983. Review of "Hypertrophic Ecosystems." Developments in Hydrobiology, Vol. 2. Limnol. Oceanogr. 28:607-608.
  142. Penhale, P. A. and R. G. Wetzel. 1983. Structural and functional adaptations of eelgrass (Zostera marina L.) to the anaerobic sediment environment. Can. J. Bot. 61:1421-1428.
  143. Wetzel, R. G. 1983. Review of "A Manual of Lake Morphology." (L. Håkansson) Earth Science Reviews 19:88-89.
  144. Losee, R. F. and R. G. Wetzel. 1983. Selective light attenuation by the periphyton complex. In: R. G. Wetzel, Editor. Periphyton of Freshwater Ecosystems. Developments in Hydrobiology 17:89-96.
  145. Wetzel, R. G. 1983. Attached algal-substrata interactions: Fact or myth, and when and how? In: R. G. Wetzel, Editor. Periphyton of Freshwater Ecosystems. Developments in Hydrobiology 17:207-215.
  146. Wetzel, R. G. 1983. Recommendations for future research on periphyton. In: R. G. Wetzel, Editor. Periphyton of Freshwater Ecosystems. Developments in Hydrobiology 17:339-346.
  147. Wetzel, R. G. 1983. Review of "Lakes and Water Management." V. Ilmavirta, R. I. Jones and P.-E. Persson, Editors. B. V. Junk, Publishers, The Hague. 222 pp. Aquatic Botany 16:304-305.
  148. Wetzel, R. G. 1983. Review of "Freshwater Marshes: Ecology and Wildlife Management." (M. W. Weller). Univ. Minnesota Press, Minneapolis. 146 pp. Quart. Rev. Biol. 58:458.
  149. Taylor, W. D. and R. G. Wetzel. 1984. Population dynamics of Rhodomonas minuta v. nannoplanctica Skuja (Cryptophyceae) in a hardwater lake. Verh. Int. Ver. Limnol. 22:536-541.
  150. Ward, A. K. and R. G. Wetzel. 1984. Molecular weight fractionation of dissolved organic nitrogen and carbon compounds from two lakes of differing trophic status. Arch. f. Hydrobiol. 101:481-488.
  151. Brammer, E. S. and R. G. Wetzel. 1984. Uptake and release of K+, Na+, and Ca++ by the water soldier, Stratiotes aloides L. Aquatic Botany 19:119-130.
  152. Francko, D. A. and R. G. Wetzel. 1984. The physiological ecology of cyclic adenosine 3':5'-monophosphate (cAMP) in vascular aquatic plants. I. In situ dynamics and relationship to primary production in a hardwater lake. Aquatic Botany 19:13-22.
  153. Wetzel, R. G. 1984. Comparative primary productivity. Citation Classic, Current Contents, AB&ES 15(9):16.
  154. Francko, D. A. and R. G. Wetzel. 1984. The physiological ecology of cyclic adenosine 3':5'-monophosphate (cAMP) in vascular aquatic plants. II. cAMP as a modulator of carbon assimilation. Aquatic Botany 19:23-35.
  155. Wetzel, R. G. 1984. Review of "Trask Bera: The Ecology of a Tropical Swamp". J. Furtado and S. Mori, Editors. B. V. Junk Publishers, Den Hague. 495 pp. Limnol. Oceanogr. 29:447.
  156. Coveney, M. F. and R. G. Wetzel. 1984. Improved double-vial radiorespirometric technique for mineralization of 14C-labelled substrates. Appl. Environ. Microbiol. 47:1154-1157.
  157. Wetzel, R. G., E. S. Brammer and C. Forsberg. 1984. Photosynthesis of submersed macrophytes in acidified lakes. I. Carbon fluxes and recycling of CO2 in Juncus bulbosus L. Aquatic Botany 19:329-342.
  158. Wetzel, R. G. 1984. Review of "Lakes of the Warm Belt" (C. Serruya and U. Pollingher) Cambridge Univ. Press. 569 pp. Can. J. Fish. Aquat. Sci. 41:1541-1542.
  159. Wetzel, R. G. 1984. Acidification and the future. Vatten 40:289-293.
  160. Wetzel, R. G. 1984. Detrital dissolved and particulate organic carbon functions in aquatic ecosystems. Bull. Mar. Sci. 35:503-509.
  161. Godshalk, G. L. and R. G. Wetzel. 1984. Accumulation of sediment organic matter in a hardwater lake with reference to lake ontogeny. Bull. Mar. Sci. 35:576-586.
  162. Dickerman, J. A. and R. G. Wetzel. 1985. Clonal growth in Typha latifolia: Population dynamics and demography of the ramets. J. Ecol. 73:535-552.
  163. Morling, G., C. Forsberg and R. G. Wetzel. 1985. Lake Änkatjärn: A non-acidified lake in an acidified region. Oikos 44:324-330.
  164. Wetzel, R. G., E. S. Brammer, K. Lindström, and C. Forsberg. 1985. Photosynthesis of submersed macrophytes in acidified lakes. II. Carbon limitations and utilization of benthic CO2 sources. Aquatic Botany 22:107-120.
  165. Forsberg, C., G. Morling, and R. G. Wetzel. 1985. Indications of the capacity for rapid reversibility of lake acidification. Ambio 14:164-166.
  166. White, W. S. and R. G. Wetzel. 1985. Association of vitamin B12 with calcium carbonate in hardwater lakes. Arch. f. Hydrobiol. 104:305-309.
  167. Wetzel, R. G. and W. S. White. 1985. Alteration of iron-CaCO3 precipitation by yellow organic acids of aquatic angiosperm origin. Arch. f. Hydrobiol. 104:247-251.
  168. Wetzel, R. G. 1985. Metabolism in interfacing zones between the watersheds and lakes: Effects on eutrophication. In: T. Kira, Editor. Shiga Conference on Conservation and Management of World Lake Environment. Proceedings pp. 133-138.
  169. Carlton, R. G. and R. G. Wetzel. 1985. A box-corer for studying metabolism of epipelic microorganisms under in situ conditions. Limnol. Oceanogr. 30:422-426.
  170. Wetzel, R. G. and V. Sládecek. 1985. Thomas Townley Macan (1910-1985). Verh. Int. Ver. Limnol. 22:3474.
  171. Wetzel, R. G. 1985. General Secretary's Report, 22nd Congress, International Association of Theoretical and Applied Limnology, France, 1983. Verh. Int. Ver. Limnol. 22:3373-3400.
  172. Stewart, A. J. and R. G. Wetzel. 1986. Cryptophytes and other microflagellates as couplers in planktonic community dynamics. Arch. f. Hydrobiol. 106:1-19.
  173. Dickerman, J. A., A. J. Stewart, and R. G. Wetzel. 1986. Estimates of net annual aboveground production: Sensitivity to sampling frequency. Ecology 67:650-659.
  174. Taylor, W. D., J. L. Wee, and R. G. Wetzel. 1986. A modification of the Utermöhl technique for improved identification and cell enumeration of diatoms and silica-scaled Chrysophyceae. Trans. Amer. Microsc. Soc. 105:68-72.
  175. Walker, G., M. F. Coveney, M. J. Klug, and R. G. Wetzel. 1986. Isocratic HPLC analysis of adenine nucleotides in environmental samples. J. Microbiol. Methods 5:255-264.
  176. Wetzel, R. G., Z. M. Gliwicz, B.-O. Jansson, T. Pearson, and H. A. Regier. 1986. Research in Hydrobiology in Finland. Research Council for Natural Sciences, The Academy of Finland. 65 pp.
  177. Andersen, S. O., C. G. Forsberg, J. S. Gray, A. Soivio, and R. G. Wetzel. 1986. Danish hydrobiology. Dansk Naturvidenskab, Copenhagen. 45 pp.
  178. Bachmann, M. D., R. G. Carlton, J. M. Burkholder, and R. G. Wetzel. 1986. Symbiosis between salamander eggs and green algae: Microelectrode measurements inside eggs demonstrate effects of photosynthesis on oxygen concentration. Can. J. Zool. 64:1586-1588.
  179. Carlton, R. G., and R. G. Wetzel. 1987. Distributions and fates of oxygen in periphyton communities. Can. J. Botany 65:1031-1037.
  180. Wetzel, R. G. 1987. Review of "Hydrobiology of the Mangal: The Ecosystem of the Mangrove Forests" (Por, F. D. and I. Dor, Eds.) and "The Mangrove Ecosystem: Research Methods" (Snedaker, E. C. and J. G. Snedaker, Eds.). Limnol. Oceanogr. 32:777-778.
  181. Wetzel, R. G. 1987. Reservoir limnology: An overview. In: Kennedy, R. H. and J. Nix, Editors. Proceedings of the DeGray Lake Symposium. Technical Report E-87-4, U.S. Army Engineer Waterways Experiment Station, Vicksburg, Mississippi. pp. 623-633.
  182. Riber, H. H., and R. G. Wetzel. 1987. Boundary layer and internal diffusion effects on phosphorus fluxes in lake periphyton. Limnol. Oceanogr. 32:1181-1194.
  183. Lehman, J. T., R. C. Aller, R. W. Flint, R. E. Hecky, J. F. Kitchell, R. J. Naiman, K. H. Nealson, and R. G. Wetzel (Editors). 1987. Basic Issues in Great Lakes Research: Proceedings of a Workshop sponsored by the U.S. National Science Foundation and The University of Michigan. Special Report No. 123 of the Great Lakes Research Division, The University of Michigan. 174 pp.
  184. Wetzel, R. G. 1988. Water as an environment for plant life. In: J. J. Symoens, Ed. Vegetation of Inland Waters. Handbook of Vegetation Science, Vol. 15. Dr. W. Junk Publishers, Dordrecht, Netherlands. pp. 1-30.
  185. Wetzel, R. G. 1988. Review of "Plant Life in Aquatic and Amphibious Habitats" (R. M. M. Crawford, Editor). J. Exp. Bot. 39:981-982.
  186. Wetzel, R. G. 1988. Review of "Lake Stechlin". A Temperate Oligotrophic Lake." (S. J. Casper, Editor). J. N. Amer. Benthol. Soc. 7:163-165.
  187. Losee, R. F., and R. G. Wetzel. 1988. Water movement within submersed littoral vegetation. Verh. Int. Ver. Limnol. 23:62-66.
  188. Moeller, R. E., and R. G. Wetzel. 1988. Littoral vs. profundal components of sediment accumulation: Contrasting roles as phosphorus sinks. Verh. Int. Ver. Limnol. 23:386-393.
  189. Carlton, R. G., and R. G. Wetzel. 1988. Phosphorus flux from lake sediments: Effect of epipelic algal photosynthesis. Limnol. Oceanogr. 33:562-570.
  190. Coveney, M. F., and R. G. Wetzel. 1988. Experimental evaluation of conversion factors for the (3H)thymidine incorporation assay of bacterial secondary productivity. Appl. Environmental Microbiology 54:2018-2026.
  191. Wetzel, R. G. 1988. Review of "The Ecology and Management of African Wetland Vegetation" (P. Denney, Ed.). Aquatic Botany 31:374-376.
  192. Wetzel, R. G. 1988. Review of "Lake Biwa" (Horie, S., Ed.). Aquatic Botany 31:377-378.
  193. Moeller, R. G., J. M. Burkholder, and R. G. Wetzel. 1988. Significance of sedimentary phosphorus to a submersed freshwater macrophyte (Najas flexilis) and its algal epiphytes. Aquatic Botany 32:261-281.
  194. Wetzel, R. G. 1988. Preface. Tropical Freshwater Biology 1(1):1.
  195. Taylor, W. D., and R. G. Wetzel. 1988. Phytoplankton community dynamics in Lawrence Lake of southwestern Michigan. Arch. Hydrobiologie/Suppl. 81:491-532.
  196. Wetzel, R. G. 1988. Review of "Freshwater Ecosystems, Modelling, and Simulation" (Straskrabá, M., and A. H. Gnauck, Eds.). Aquatic Botany 31:373-374.
  197. Wetzel, R. G. 1988. General Secretary's Report, 23rd Congress, New Zealand, International Association of Theoretical and Applied Limnology. Verhand. Internat. Verein. Limnologie 23:2298-2319.
  198. Coveney, M. F., and R. G. Wetzel. 1989. Bacterial metabolism of algal extracellular carbon. Hydrobiologia 173:141-149.
  199. Burkholder, J. M., and R. G. Wetzel. 1989. Epiphytic microalgae on a natural substratum in a hardwater lake: Seasonal dynamics of community structure, biomass and ATP content. Arch. Hydrobiol./Suppl. 83:1-56.
  200. Carlton, R. G., G. R. Walker, M. J. Klug, and R. G. Wetzel. 1989. Relative values of oxygen, nitrate, and sulfate to terminal microbial processes in the sediments of Lake Superior. J. Great Lakes Res. 15:133-140.
  201. Burkholder, J. M., and R. G. Wetzel. 1989. Patterns of microbial colonization on natural and artificial macrophytes in a phosphorus-limited hardwater lake. J. Phycology 32:51-59.
  202. Wetzel, R. G. 1989. Freshwater ecology: Changes, predictions, and requirements. Bull. New Jersey Acad. Sci. 34:21-29.
  203. Wetzel, R. G. 1989. Peter Kilham 1943-1989. Arch. Hydrobiol. 116:125-126.
  204. Cunningham, H. W., and R. G. Wetzel. 1989. Kinetic analysis of protein degradation by a freshwater wetland sediment community. Appl. Environ. Microbiol. 55:1963-1967.
  205. Wetzel, R. G. et al. 1989. Nutrient, energy and water flows through land-water ecotones. In: Naiman, R. J., H. Decamps, and F. Fournier, Editors. The Role of Land/Inland Water Ecotones in Landscape Management and Restoration: A Proposal for Collaborative Research. UNESCO, Paris. pp. 61-64.
  206. Wetzel, R. G. 1989. Wetland and littoral interfaces of lakes: Productivity and nutrient regulation in the Lawrence Lake ecosystem. In: R. R. Sharitz and J. W. Gibbons, Editors. Freshwater Wetlands and Wildlife. DOE Symposium Series 61. US DOE Office Sci. Technical Info., Oak Ridge, TN. pp. 283-302.
  207. Wetzel, R. G. 1990. Reservoir ecosystems: Conclusions and Speculations. In: K. W. Thornton, B. L. Kimmel and F. E. Payne, Editors. Reservoir Limnology: Ecological Perspectives. John Wiley and Sons, Inc., New York. pp. 227-238.
  208. Burkholder, J. M., and R. G. Wetzel. 1990. Alkaline phosphatase and algal biomass on natural and artificial plants in an oligotrophic lake: Re-evaluation of the role of macrophytes as a phosphorus source for epiphytes. Limnol. Oceanogr. 35:736-747.
  209. Wetzel, R. G. 1990. Land-water interfaces: Metabolic and limnological regulators. Edgardo Baldi Memorial Lecture. 24th Congress Societas Internationalis Limnologiae. Verhand. Internat. Verein. Limnol. 24:6-24.
  210. McKnight, D., P. Behmel, D. A. Francko, E. T. Gjessing, U. Münster, R. C. Petersen, Jr., O. M. Skulberg, C. E. W. Steinberg, E. Tipping, S. A. Visser, P. W. Werner, and R. G. Wetzel. 1990. How do organic acids interact with solutes, surfaces and organisms? In: Perdue, E. M., and E. T. Gjessing, Editors. Organic Acids in Aquatic Ecosystems. Dahlem Konferenzen. Chichester: J. Wiley & Sons, Ltd. pp. 223-243.
  211. Burkholder, J. M., R. G. Wetzel, and K. L. Klomparens. 1990. A direct comparison of phosphate uptake by adnate and loosely attached microalgae within an intact biofilm matrix. Appl. Environ. Microbiol. 56:2882-2890.
  212. Cotner, J. B., and R. G. Wetzel. 1991. Characterization of bacterial phosphatases from different habitats in a small, hardwater lake. In: J. Chróst, Editor. Microbial Enzymes in Aquatic Environments. Springer-Verlag, New York. pp. 186-204.
  213. Wetzel, R. G. 1991. Extracellular enzymatic interactions in aquatic ecosystems: Storage, redistribution, and interspecific communication. In: R. J. Chróst, Editor. Microbial Enzymes in Aquatic Environments. Springer-Verlag, New York. pp. 6-28.
  214. Wetzel, R. G. and G. E. Likens. 1991. Limnological Analyses. 2nd Edition. Springer-Verlag, New York. 391 pp.
  215. Wetzel, R. G. 1991. On the teaching of limnology: Need for a national initiative. Limnol. Oceanogr. 36:213-215.
  216. Cotner, J. C. and R. G. Wetzel. 1991. 5'-nucleotidase activity and inhibition in a eutrophic and an oligotrophic lake. Appl. Environ. Microbiol. 57:1306-1312.
  217. Wetzel, R. G. 1991. Limnological education - Reply to the comment by Kalff. Limnol. Oceanogr. 36:1502.
  218. Wetzel, R. G. 1991. General Secretary's Report, 24th Congress, Federal Republic of Germany, International Association of Theoretical and Applied Limnology. Verhand. Internat. Verein. Limnologie 24:3102-3136.
  219. Wetzel, R. G. 1991. Reviews of "Ecology and Management of Aquatic Vegetation in the Indian Subcontinent" (B. Gopal, Ed.) Kluwer Academic Publ., Dordrecht. 257 pp. and "Wetland Ecology and Management" (D. F. Whigham, et al., Eds.) Kluwer Academic Publ., Dordrecht. 180 pp. Limnol. Oceanogr. 36:1066-1068.
  220. Wetzel, R. G. 1991. Detritus, macrophytes, and nutrient cycling in lakes. Mem. Istituto Italiano Idrobiologia 47:233-251.
  221. Carrick, H. J., G. L. Fahnenstiel, E. F. Stoermer, and R. G. Wetzel. 1991. The importance of zooplankton-protozoan trophic couplings in Lake Michigan. Limnol. Oceanogr. 36:1335-1345.
  222. Wetzel, R. G. 1992. Gradient-dominated ecosystems: Sources and regulatory functions of dissolved organic matter in freshwater ecosystems. In: T. Kairesalo and R. I. Jones, Editors. Dissolved Organic Matter in Lacustrine Ecosystems: Energy Source and System Regulator. Hydrobiologia 229:181-198.
  223. Wetzel, R. G. 1992. Concluding remarks. In: T. Kairesalo and R. I. Jones, Editors. Dissolved Organic Matter in Lacustrine Ecosystems: Energy Source and System Regulator. Hydrobiologia 229:289-291.
  224. Wetzel, R. G. 1992. Review of "Wetlands and Shallow Continental Water Bodies. Vol. 1. Natural and Human Relationships" (B.C. Patten, Ed.) SPB Academic Publ., The Hague. 759 pp. Aquatic Bot. 45:295-297.
  225. Wetzel, R. G. 1992. Clean water: A fading resource. In: V. Ilmavirta and R. I. Jones, Editors. The Dynamics and Use of Lacustrine Ecosystems. Hydrobiologia 243/244:21-30.
  226. Wetzel, R. G. 1992. Concluding remarks: Limnology now and in the future. In: V. Ilmavirta and R. I. Jones, Editors. The Dynamics and Use of Lacustrine Ecosystems. Hydrobiologia 243/244:481-485.
  227. Wetzel, R. G. 1992. Wetlands: Gates to nutrient loading to lakes. J. Great Lakes Res. 18:529-532.
  228. Wetzel, R. G. and A. K. Ward. 1992. Primary production. In: P. Calow and G. E. Petts, Editors. Rivers Handbook. Blackwell Scientific Publs., Oxford. pp. 354-369.
  229. Wetzel, R. G. 1992. Review of "Isozymes in Water Plants" (L. Triest, Ed.) Opera Botanica Beligica 4, National Botanic Garden of Belgium, Meise. 264 pp. Aquat. Bot. 43:209-210.
  230. Cotner, J. B., Jr. and R. G. Wetzel. 1992. Uptake of dissolved inorganic and organic phosphorus compounds by phytoplankton and bacterioplankton. Limnol. Oceanogr. 37:232-243.
  231. Coveney, M. F. and R. G. Wetzel. 1992. Effects of nutrients on specific growth rate of bacterioplankton in oligotrophic lake water cultures. Appl. Environ. Microbiol. 58:150-156.
  232. Wetzel, R. G. 1992. Professional altruism. Limnol. Oceanogr. 37:1831-1833.
  233. Losee, R. F., and R. G. Wetzel. 1993. Littoral flow rates within and around submersed macrophyte communitites. Freshwat. Biol. 29:7-17.
  234. Lock, M. A., J. Anderson, J. M. Laybourn-Parry, E. A. Woods, and R. G. Wetzel. 1993. Nutrient regeneration at primary production: Closing the loop. Ecology Group Symposium Report, Dublin Meeting. Soc. Gen. Microbiol. Quart. 20:15-16.
  235. Spencer, W. E. and R. G. Wetzel. 1993. Acclimation of photosynthesis and dark respiration of a submersed angiosperm beneath the ice in a temperate lake. Plant Physiology 101:985-991.
  236. Wetzel, R. G. 1993. Review of "Techniques for Wildlife Habitat Management of Wetlands" (N. F. Payne). Quarterly Rev. Biol. 68:291.
  237. Wetzel, R. G. 1993. Microcommunities and microgradients: Linking nutrient regeneration and high sustained aquatic primary production. Netherlands J. Aquat. Ecol. 27:3-9.
  238. Wetzel, R. G. 1993. Humic compounds from wetlands: Complexation, inactivation, and reactivation of surface-bound and extracellular enzymes. Verh. Internat. Verein. Limnol. 25:122-128.
  239. Kim, B. and R. G. Wetzel. 1993. The effect of dissolved humic substances on the alkaline phosphatase and the growth of microalgae. Verh. Internat. Verein. Limnol. 25:129-132.
  240. Wetzel, R. G. 1993. Constructed Wetlands: Scientific foundations are critical. In: Moshiri, G. A., Editor. Constructed Wetlands for Water Quality Improvement. Lewis Publishers, Inc., Chelsea, MI. pp 3-7.
  241. Wetzel, R. G. 1993. Review of "Biodiversity of the Southeastern United States: Aquatic Communities." Wiley, New York. 779 pp. Limnol. Oceanogr. 38:1588-1589.
  242. Wetzel, R. G. 1993. Limnology: An Overview. Citation Classic, Current Contents AB&ES 24(36):6.
  243. Manny, B. A., W. C. Johnson, and R. G. Wetzel. 1994. Nutrient additions by waterfowl to lakes and reservoirs: Predicting their effects on productivity and water quality. Hydrobiologia 279/280:121-132.
  244. Wetzel, R. G. 1994. Limnologia. Fundação Calouste Gulbenkian, Av. de Berna, Lisbon, Portugal. 1030 pp. (In Portuguese).
  245. Wetzel, R. G., A. G. van der Valk, R. E. Turner, W. J. Mitsch, and B. Gopal, Editors. 1994. Recent Studies on Ecology and Management of Wetlands. International Scientific Publications, New Delhi. 246 pp.
  246. Wetzel, R. G. 1994. Future directions in research on controls of eutrophication. In: Proceedings 5th International Conference on Lake Conservation. Mem. Ist. Ital. Idrobiol. 52:71-78.
  247. Spencer, W. E., J. Teeri, and R. G. Wetzel. 1994. Acclimation of photosynthetic phenotype to environmental heterogeneity. Ecology 75:301-314.
  248. Wetzel, R. G. 1994. Review of "Einführung in der Limnologie." (7th Ed.) Fischer, Stuttgart. 387 pp. Aquatic Botany 47:355-356.
  249. Karentz, D., R. G. Wetzel, et al. 1994. Impact of UV-B radiation on pelagic freshwater ecosystems. Arch. Hydrobiol. Beih. Ergebn. Limnol. 43:31-69.
  250. Wetzel, R. G. 1994. General Secretary's Report. 25th Congress, International Association of Theoretical and Applied Limnology. Barcelona, Spain. Verh. Internat. Verein. Limnol. 25:2526-2559.
  251. Wetzel, R. G., T. S. Bianchi, and P. T. Buonora. 1994. Dissolved organic carbon from wetlands: Rates of decomposition, fluxes, and loss processes in recipient aquatic ecosystems. Rept. Environmental Inst. Southeast Regional Center NIGEC. 36:1-8.
  252. Thomaz, S. M. and R. G. Wetzel. 1995. 3H-Leucine incorporation methodology to estimate epiphytic bacterial biomass production. Microbial Ecol. 29:63-70.
  253. Wetzel, R. G. 1995. Limnology: Inland Aquatic Ecosystems. In: W. A. Nierenberg, Editor. Encyclopedia of Environmental Biology Vol. 2. Academic Press, New York. pp 433-441.
  254. Lemke, M. J., P. F. Churchill, and R. G. Wetzel. 1995. Effect of substrate and cell surface hydrophobicity on phosphate utilization in bacteria. Appl. Environ. Microbiol. 61:913-919.
  255. Wetzel, R. G. 1995. Review of "Nutrient dynamics and retention in land-water ecotones of lowland, temperate lakes and rivers." A. Hillbricht-Ilkowska and E. Piecyznska, Editors. Developments in Hydrobiology 82. 361 pp. Aquatic Bot. 49:273-282.
  256. Lewis, W. M., Jr., S. W. Chisholm, C. F. D'Elia, E. J. Fee, N. G. Hairston, Jr., J. E. Hobbie, G. E. Likens, S. T. Threlkeld, and R. G. Wetzel. 1995. Challenges for limnology in the United States and Canada: An Assessment of the discipline in the 1990's. Bull. Amer. Soc. Limnol. Oceanogr. 4(2):1-20.
  257. Wetzel, R. G. 1995. Review of: "Proceedings of the Third International Workshop on Phosphorus in Sediments" (P. C. M. Boers, et al., Editors; Kluwer, Dordrecht). Aquatic Bot. 51:344-345.
  258. Aumen, N. and R. G. Wetzel, Editors. 1995. Lake Okeechobee: A Synthesis. Advances in Limnology 45. E. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart. 356 pp.
  259. Coveney, M. F. and R. G. Wetzel. 1995. Biomass, production, and specific growth rate of bacterioplankton and coupling to phytoplankton in an oligotrophic lake. Limnol. Oceanogr. 40:1187-1200.
  260. Gopal, B. and R. G. Wetzel, Editors. 1995. Limnology of Developing Countries. Vol. 1. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart. 230 pp.
  261. Wetzel, R. G., P. G. Hatcher, and T. S. Bianchi. 1995. Natural photolysis by ultraviolet irradiance of recalcitrant dissolved organic matter to simple substrates for rapid bacterial metabolism. Limnol. Oceanogr. 40:1369-1380.
  262. Wetzel, R. G. 1995. Death, detritus, and energy flow in aquatic ecosystems. Freshwater Biol. 33:83-89.
  263. Wetzel, R. G. 1995. Review of Lake Veluwe, A Macrophyte-Dominated System under Eutrophication Stress. (W. v. Vierssen, M. Hootsmans, and J. Vormaat, Eds. 1994. Kluwer, Dordrecht. 375 pp.) Limnol. Oceanogr. 40:646-647.
  264. Wetzel, R. G. 1995. Training of aquatic ecosystem scientists: Continue to languish or accept our responsibilities? Water Resour. Update 98:15-20.
  265. Neely, R. K. and R. G. Wetzel. 1995. Simultaneous use of 14C and 3H to determine autotrophic production and bacterial protein production in periphyton. Microbial Ecol. 30:227-237.
  266. Wetzel, R. G. 1995. Forward. Lakes in China: Research of their Environment. China Ocean Press, Beijing. pp. 7-8.
  267. Mann, C. J. and R. G. Wetzel. 1995. Dissolved organic carbon and its utilization in a riverine wetland ecosystem. Biogeochemistry 31:99-120.
  268. Wetzel, R. G. 1996. Benthic algae and nutrient cycling in standing freshwater ecosystems. In: Stevenson, R. J., M. Bothwell, and R. Lowe, Editors. Algal Ecology: Benthic Algae in Freshwater Ecosystems. Academic Press, New York. pp. 641-667.
  269. Bianchi, T. S., M. E. Freer, and R. G. Wetzel. 1996. Temporal and spatial variability of methane fluxes from the Sabine River floodplain: The role of dissolved organic carbon (DOC). Arch. Hydrobiol. 136:261-287.
  270. Wetzel, R. G. 1996. Training of aquatic ecosystem scientists. In: Freshwater Ecosystems: Revitalizing Educational Programs in Limnology. National Research Council, National Academy Press, Washington, DC. pp. 218-233.
  271. Mann, C. J. and R. G. Wetzel. 1996. Loading and bacterial utilization of dissolved organic carbon from emergent macrophytes. Aquatic Bot. 53:61-72.
  272. Wetzel , R. G. and D. Pickard. 1996. Application of secondary production methods to estimates of net aboveground primary production of emergent aquatic macrophytes. Aquatic Botany 53:109-120.
  273. Spencer, W. E., R. G. Wetzel, and J. Terri. 1996. Photosynthetic phenotype plasticity and the role of phosphoenolpyruvate carboxylase in Hydrilla verticillata. Plant Science 118:1-9.
  274. Wetzel, R. G. 1996. Foreword. In: A. V. Zhulidov, J. V. Headley, R. D. Robarts, A. M. Nikanorov, and A. A. Ischenko. Atlas of Russian Wetlands: Biogeography and Metal Concentrations. Environment Canada, Ottawa. pp. 1-2.
  275. Wetzel, R. G. 1996. Review of Aquatic Ecosystems of China: Environmental and Toxicological Assessment. (M. Munawar, et al., Editors.) Quart. Rev. Biol. 71:590-591.
  276. Roden, E. E. and R. G. Wetzel. 1996. Organic carbon oxidation and suppression of methane production by microbial Fe(III) oxide reduction in vegetated and unvegetated freshwater wetland sediments. Limnol. Oceanogr. 41:1733-1748.
  277. Williams, W. D. and R. G.Wetzel. 1996. Forward: Water as a limiting resource, conservation and management. Proc. Int. Assoc. Limnol. 26.
  278. Wetzel, R. G., A. K. Ward and M. Stock. 1997. Effects of natural dissolved organic matter on mucilaginous matrices of biofilm communities. Arch. Hydrobiologie 139:289-299.
  279. Mulholland, P. J., G. R. Best, C. C. Coutant, G. M. Hornberger, J. L. Meyer, P. J. Robinson, J. R. Stenberg, R. E. Turner, F. Vera-Herrera and R. G. Wetzel. 1997. Effects of climate change on freshwater ecosystems of the south-eastern United States and Gulf Coast of Mexico. In: Effects of Climate Change on Inland Waters of North America. Hydrological Processes 11:949-970.
  280. Grimshaw, H. J., R. G. Wetzel, M. Brandenburg, K. Segerblom, L. J. Wenkert, G. A. Marsh, C. Charnetzky, J. E. Haky, and C. Carraher. 1997. Shading of periphyton communities by wetland emergent macrophytes: Decoupling of algal photosynthesis from microbial nutrient retention. Arch. Hydrobiol. 139:17-27.
  281. Neely, R. K. and R. G. Wetzel. 1997. Autumnal production by bacteria and photosynthetic microbiota attached to Typha latifolia L. detritus. J. Freshwat. Ecol. 12:253-267.
  282. Wetzel, R. G. 1997. Vittorio Tonolli Memorial Fund for furthering limnology in developing countries. SILNEWS 23:1-2.
  283. Wetzel, R. G. 1997. Edgardo Baldi Memorial Lecture of SIL. SILNEWS 24:1-2.
  284. Ervin, G. N. and R. G. Wetzel. 1997. Shoot:root dynamics during growth stages of the aquatic rush Juncus effusus L. Aquatic Botany 59:63-73.
  285. Wetzel, R. G. and P. G. Hatcher. 1997. Ultraviolet irradiance: Natural photolysis of recalcitrant dissolved organic matter to simple substrates for rapid bacterial metabolism. Verh. Internat. Verein. Limnol. 26:412.
  286. Wetzel, R. G. and M. Søndergaard. 1998. Role of submerged macrophytes for the microbial community and dynamics of dissolved organic carbon in aquatic ecosystems. In: Jeppesen, E., Ma. Søndergaard, Mo. Søndergaard and K. Christoffersen, Eds. The Structuring Role of Submerged Macrophytes in Lakes. Springer-Verlag, New York. pp. 133-148.
  287. Moeller, R. E., R. G. Wetzel, and C. W. Osenberg. 1998. Concordance of phosphorus limitation in lakes: Bacterioplankton, phytoplankton, epiphyte-snail consumers, and rooted macrophytes. In: Jeppesen, E., Ma. Søndergaard, Mo. Søndergaard and K. Christoffersen, Eds. The Structuring Role of Submerged Macrophytes in Lakes. Springer-Verlag, New York. pp. 318-325.
  288. Carpenter, S. R., E. van Donk, and R. G. Wetzel. 1998. Nutrient loading gradient in shallow lakes. In: Jeppesen, E., Ma. Søndergaard, Mo. Søndergaard and K. Christoffersen, Eds. The Structuring Role of Submerged Macrophytes in Lakes. Springer-Verlag, New York. pp. 393-396.
  289. Grace, J. B. and R. G. Wetzel. 1998. Long-term dynamics of Typha populations. Aquatic Botany 61:137-146.
  290. Wetzel, R. G. 1998. Foreward. pp. 1-3. In: M. T. Arts and B. Wainman, Editors. Lipids in Freshwater Ecosystems. Springer-Verlag, New York.
  291. Wetzel, R. G. 1998. Review of “Freshwaters (sic) of Alaska: Ecological Syntheses”. Limnol. Oceanogr. 43:1021.
  292. Wetzel, R. G. 1998. General Secretary’s Report. 26th Congress, International Association of Theoretical and Applied Limnology, São Paulo, Brazil. Verhand. Internat. Verein. Limnol. 26:2452-2489.
  293. Bicudo, D. C., A. K. Ward, and R. G. Wetzel. 1998. Fluxes of dissolved organic carbon within attached aquatic microbiota. Proc. Int. Assoc. Theor. Appl. Limnol. 26:1608-1613.
  294. Lemke, M. J., P. F. Churchill, and R. G. Wetzel. 1998. Humic acid interaction with extracellular layers of wetland bacteria. Proc. Int. Assoc. Theor. Appl. Limnol. 26:1621-1624.
  295. Roden, E. E. and R. G. Wetzel. 1998. Regulation of methane production in freshwater wetland sediments by competing anaerobic microbial processes. Proc. Int. Assoc. Theor. Appl. Limnol. 26:1364.
  296. Wetzel, R. G. 1998. Preface. pp. 1-3. Aquatic Humic Substances: Ecology and Biogeochemistry. Kluwer Publishers, Amsterdam.
  297. Wetzel, R. G. 1998. Review of Vegetation Processes in the Pelagic: A Model for Ecosystem Theory (By C. S. Reynolds). Environ. Conserv. 25:284.
  298. Boavida, M.-J. and R. G. Wetzel. 1998. Inhibition of phosphatase activity by dissolved humic substances and hydrolytic reactivation by natural UV. Freshwater Biology 40:285-293.
  299. Wetzel, R. G. 1999. Biodiversity and shifting energetic stability withing freshwater ecosystems. Arch. Hydrobiol. Spec. Issues Advances in Limnology 54:19-32.
  300. Mann, C. J. and R. G. Wetzel. 1999. Photosynthesis and stomatal conductance of Juncus effusus L. in a temperate wetland ecosystem. Aquatic Botany 63:127-144.
  301. Wetzel, R. G. 1999. Plants and water in and adjacent to lakes. In: A. J. Baird and R. L. Wilby, Editors. Eco-hydrology: Plants and Water in Terrestrial and Aquatic Environments. Routledge, London. Pp. 269-299.
  302. Wetzel, R. G. 1999. Organic phosphorus mineralization in soils and sediments. In: K. R. Reddy, Editor. Phosphorus Biogeochemistry in Florida Ecosystems. Lewis Publishers, Boca Raton. Pp. 225-245.
  303. Wetzel, R. G. and M. J. Howe. 1999. Maximizing production in a herbaceous perennial aquatic plant by continuous growth and synchronizing population dynamics. Aquatic Botany 64:111-129.
  304. Kuehn, K. A., M. O. Gessner, R. G. Wetzel, and K. Suberkropp. 1999. Decomposition and CO2 evolution from standing litter of the emergent macrophyte Erianthus giganteus. Microb. Ecol. 38:50-57.
  305. Wetzel, R. G. and B. Gopal, Editors. 1999. Limnology of Developing Countries. Vol. II. E. Schweizerbart’sche Verlagsbuchhandlungen, Stuttgart. 330 pp.
  306. Wetzel, R. G. 1999. Review of Lake Erken: 50 Years of Limnological Research. (C. Forsberg and R. Petersson, Eds.) Limnol. Oceanogr. 44:1184-1185.
  307. Kahn, W. E. and R. G. Wetzel. 1999. Effects of ultraviolet radiation and microscale water level fluctuations on periphytic microbiota. Microb. Ecol. 38:253-263.
  308. Robarts, R. D. and R. G. Wetzel. 2000. The looming global water crisis and the need for international education and cooperation. SILNEWS 29:1-3.
  309. Mann, C. J. and R. G. Wetzel. 2000. Hydrology of an impounded riverine wetland. I. Wetland sediment characteristics. Wetlands 20:23-32.
  310. Mann, C. J. and R. G. Wetzel. 2000. Hydrology of an impounded riverine wetland. II. Subsurface hydrology. Wetlands 20:33-47.
  311. Mann, C. J. and R. G. Wetzel. 2000. Effects of the emergent macrophyte Juncus effusus L. on the chemical composition of interstitial water and bacterial productivity. Biogeochemistry 48:307-322.
  312. Wetzel, R. G. 2000. Freshwater ecology: Changes, requirements, future demands. Limnology 1:3-9.
  313. Ervin, G. N. and R. G. Wetzel. 2000. Allelochemical autotoxicity in the emergent wetland macrophyte Juncus effusus (Juncaceae). American Journal of Botany 87:853-860.
  314. Kuehn, K. A., M. J. Lemke, K. Suberkropp, and R. G. Wetzel. 2000. Microbial biomass and production associated with decaying leaf litter of the emergent macrophyte Juncus effusus. Limnol. Oceanogr. 45:862-870.
  315. Wetzel, R. G. 2000. Fundamental processes within natural and constructed wetland ecosystems: Short-term vs. long-term objectives. In: Wetland Systems for Water Pollution Control. Vol. 1., Lewis Publishers, Boca Raton. pp. 3-11. (Selected to be published in Water Science and Technology 2001. 44:1-8 subsequently; see below.)
  316. Wetzel, R. G. 2000. Review of Water Technology: An Introduction for Environmental Scientists and Engineers. (N. Gray) Environmental Conservation 27:219-220.
  317. Wetzel, R. G. 2000. Natural photodegradation by UV-B of dissolved organic matter of different decomposing plant sources to readily degradable fatty acids. Verhand. Internat. Verein. Limnol. 27:2036-2043.
  318. Ostroumov, S. A., S. Dodson, D. Hamilton, S. Peterson, and R. G. Wetzel. 2000. Medium-term and long-term priorities in ecological studies for the 21st century. In: S. A. Ostroumov, Editor. Aquatic Ecosystesm and Organisms 2. Max Press, Moscow. Pp. 25-27.
  319. Wetzel, R. G. 2001. Limnology: Lake and River Ecosystems. Academic Press, San Diego. 1006 pp.
  320. Espeland, E. M. and R. G. Wetzel. 2001. Complexation, stabilization, and UV photolysis of extracellular and surface-bound glucosidase and alkaline phosphatase: Implications for biofilm microbiota. Microbial Ecology 42:572-585.
  321. Wetzel, R. G. and B. Gopal (Eds). 2001. Limnology of Developing Countries. Vol. III. Schweizerbart’sche Verlagsbuchhandlung, Stuttgart. 189 pp.
  322. Wetzel, R. G. 2001. Review of Limnology and Lake Management 2000+. Archiv f. Hydrobiologie Special Issues Advances in Limnology 55. 593 pp. SILNews 35:14-15.
  323. Twilley, R. R., E. J. Barron, H. L. Gholz, M. A. Harwell, R. L. Miller, D. J. Reed, J. B. Rose, E. H. Siemann, R. G. Wetzel, and R. J. Zimmerman. 2001. Confronting Climate Change in the Gulf Coast Region. Island Press, California. 96 pp.
  324. Wetzel, R. G. 2001. Freshwater ecosystems. In: Encyclopedia of Biodiversity. Volume 3. Academic Press, San Diego. Pp. 75-87.
  325. Espeland, E. M., S. N. Francoeur, and R. G. Wetzel. 2001. Influence of algal photosynthesis on biofilm bacterial production and associated glucosidase and xylosidase activities. Microbial Ecol. 42:524-530.
  326. Wetzel, R. G. 2001. Protists: Key ecosystem regulators. BioScience 51:997.
  327. Francoeur, S. N., R. G. Wetzel, and R. K. Neely. 2001. A new spatially-explicit method for detecting extracellular protease activity in biofilms. Applied and Environmental Microbiology 67:4329-4334.
  328. Wetzel, R. G. 2001. Fundamental processes within natural and constructed wetland ecosystems: Short-term versus long-term objectives. Water Sci. Technol. 44:1-8.
  329. Ervin, G. N. and R. G. Wetzel. 2001. Seed fall and field germination of needlerush, Juncus effuses L. Aquat. Bot. 71:233-237.
  330. Wetzel, R. G. 2001. The siren call of biodiversity. Annual Circular SIL 2001:1-2.
  331. Espeland, E. M. and R. G. Wetzel. 2001. Effects of photosynthesis on bacterial photsphatase production in biofilms. Microbial Ecology 42:328-337.
  332. Kuehn, K. A., M. O. Gessner, R. G. Wetzel, and K. Suberkropp. 2001. Standing litter decomposition of the emergent macrophyte Erianthus giganteus (plumegrass). Verh. Internat. Verein. Limnol. 27:3846-3847.
  333. Roden, E. E. and R. G. Wetzel. 2002. Kinetics of microbial Fe(III) oxide reduction in freshwater wetland sediments. Limnology and Oceanography 47:198-211.
  334. Ervin, G. N. and R. G. Wetzel. 2002. Influence of a dominant macrophyte, Juncus effusus, on wetland plant species richness, diversity, and community composition. Oecologia 130:626-636.
  335. Tuchman, N. C., R. G. Wetzel, S. T. Rier, K. A. Wahtera, and J. A. Teeri. 2002. Elevated atmospheric CO2 lowers leaf litter nutritional quality for stream ecosystem food webs. Global Change Biology 8:163-170.
  336. Gloss, S. P., R. K. Davis, D. T. Ford, G. E. Galloway, L. W. Hesse, W. C. Johnson, P. A. Johnson, K. D. Keenlyne, S. S. Light, E. T. Smerdon, A. D. Tarlock, and R. G. Wetzel.. 2002. The Missouri River Ecosystem: Exploring the Prospects for Recovery. National Academy Press, Washington, DC 175 pp.
  337. Ervin, G. N. and R. G. Wetzel. 2002. Effects of sodium hypochlorite sterilization and dry cold storage on germination of Juncus effusus L. Wetlands 22:191-195.
  338. Reir, S. T., N. C. Tuchman, R. G. Wetzel, and J. A. Teeri. 2002. Elevated CO2-induced changes in the chemistry of quaking aspen (Populus tremuloides) leaf litter: Subsequent mass loss and microbial response in a stream ecosystem. Journal of the American Benthological Society 21:16-27.
  339. Espeland, E. M., S. N. Francoeur, and R. G. Wetzel. 2002. Microbial phosphatase in biofilms: A comparison of whole community enzyme activity and individual bacterial cell-surface phosphatase expression. Archiv für Hydrobiologie 153:581-593.
  340. Wetzel, R. G. 2002. Human activities and the integrity of lake ecosystems. In: R. Schmidt and M. Dokulil, Editors. Effects of Industrial Tailings on the Ecological Integrity of a Deep Oligotrophic lake (Traunsee, Austria). Water, Air Soil Pollut. 2:7-8.
  341. Wetzel, R. G. 2002. Societas Internationalis Limnologiae: Twenty-Eighth Congress, Melbourne, Australia, 2001. General Secretary’s Report. Verhand. Internat. Verein. Limnol. 28:1920-1970.
  342. Wetzel, R. G. 2002. Dissolved organic carbon: Detrital energetics, metabolic regulators, and drivers of ecosystem stability of aquatic ecosystems. In: S. Findlay and R. Sinsabaugh, Editors. Aquatic Ecosystems: Interactivity of Dissolved Organic Matter. Academic Press, San Diego. Pp. 455-477.
  343. Wetzel, R. G. 2002. Origins, fates, and ramifications of natural organic compounds of wetlands. In: M. M. Holland, M. L. Warren, and J. A. Stanturf, Editors. Sustainability of Wetlands and Water Resources. Gen. Tech. Rep. SRS-50. U. S. Forest Service, Asheville, NC. Pp. 183-189.
  344. Wetzel, R. G. 2003. Freshwater and wetland ecology: Challenges and future frontiers. In: M. M. Holland, E. R. Blood, and L. R. Shaffer, Editors. Achieving Sustainable Freshwater Systems: A Web of Connections. Island Press, Washington, DC. Pp. 111-123.
  345. Tietjen, T. E. and R. G. Wetzel. 2003. Extracellular enzyme-clay mineral complexes: Enzyme adsorption, alteration of enzyme activity, and protection from photodegradation. Aquatic Ecology 37:331-339.
  346. Francoeur, S. N., E. M. Espeland, and R. G. Wetzel. 2003. Short-term effects of nitrogen and extracellular protease amendment on algal productivity in nitrogen-deprived periphyton. J. Freshwat. Ecol. 18:105-113.
  347. Tietjen, T. E. and R. G. Wetzel. 2003. Seasonal and spatial distribution of bacterial biomass and the percentage of viable cells in a reservoir of Alabama. Journal of Plankton Research 25:1521-1534.
  348. Vähätalo, A. V., K. Salonen, U. Münster, M. Järvinen, and R. G. Wetzel. 2003. Photochemical transformation of allochthonous organic matter provides bioavailable nutrients in a humic lake. Archiv für Hydrobiologie 156:287-314.
  349. Wetzel, R. G. 2003. Solar radiation as an ecosystem modulator. In: E. W. Helbling and H. Zagarese, Editors. UV Effects in Aquatic Organisms and Ecosystems. Comprehensive Series in Photochemical and Photobiological Sciences. European Society of Photobiology, Cambridge. Pp. 3-18.
  350. Francoeur, S. N. and R. G. Wetzel. 2003. Regulation of periphytic leucine-aminopeptidase activity. Aquatic Microbial Ecology 31:249-258.
  351. Engelhaupt, E., T. S. Bianchi, R. G. Wetzel, and M. Tarr. 2003. Photochemical transformations of high-molecular-weight dissolved organic carbon in a southern Louisiana tidal stream (Bayou Trepagnier). Biogeochemistry 62:39-58.
  352. Roden, E. E. and R. G. Wetzel. 2003. Competition between Fe(III)-reducing and methanogenic bacteria for acetate in iron-rich freshwater sediments. Microbial Ecology 45:252-258.
  353. Tuchman, N. C., K. A. Wahtera, R. G. Wetzel, and J. A. Teeri. 2003. Elevated atmospheric CO2 alters leaf litter quality for stream ecosystems: An in situ leaf decomposition study – decomposition of elevated CO2-altered leaf litter. Hydrobiologia 495:203-211.
  354. Tuchman, N. C., K. A. Wahtera, R. G. Wetzel, N. M. Russo, G. M. Kilbane, L. M. Sasso, and J. A. Teeri. 2003. Nutritional quality of leaf detritus altered by elevated atmospheric CO2: Effects on development of mosquito larvae. Freshwater Biology 48:1432-1439.
  355. Erwin, G. N. and R. G. Wetzel. 2003. An ecological perspective of allelochemical interference in land-water interface communities. Plant and Soil 256:13-28.
  356. Ostroumov, S. A., S. Dodson, D. Hamilton, S. Peterson, and R. G. Wetzel. 2003. Medium-term and long-term priorities in ecological studies. Rivista di Biologia/Biology Forum 96:327-332.
  357. Wetzel, R. G. 2003. What is limnology? Website of American Society of Limnology and Oceanography (www.aslo.org) 4 pp.
  358. Rier, S. T., N. C. Tuchman, and R. G. Wetzel. 2004. Effects of elevated CO2 on the chemistry and subsequent in-stream decomposition of leaf litter from three tree species common to the riparian zones of northern Michigan streams. Global Change Biology (In review)
  359. Wetzel, R. G. 2004. Freshwater Ecosystems. In: Encyclopedia of Science and Technology. 9th Ed. McGraw-Hill, New York. (In press)
  360. Ervin, G. N., E. M. Epseland, and R. G. Wetzel. 2004. Utilization of macrophyte-derived dissolved organic carbon by freshwater bacteria from differing habitats. FEMS Microbiology Ecology (In review)
  361. Espeland, E. M., A. K. Ward, and R. G. Wetzel. 2004. The effect of light on dissolved organic carbon fate in a simulated wetland habitat. Biogeochemistry (In review)
  362. Wetzel, R. G. and N. C. Tuchman. 2004. Effects of atmospheric CO2 enrichment on the productionof plant degradation products and their natural photodegradation and biological utilization. Limnology and Oceanography (In review)
  363. Wetzel, R. G. and B. Gopal (Eds) 2004. Limnology of Developing Countries. Vol. IV. Schweizerbart’sche Verlagsbuchhandlung, Stuttgart. (In press)
  364. Reddy, K. R., R. G. Wetzel, and R. H. Kadlec. 2004. Biogeochemistry of phosphorus in wetlands. In: Biogeochemical Cycling in Wetland Ecosystems. Academic Press (In press)
  365. Vähätalo, A. V. and R. G. Wetzel. 2004. Photochemical and microbial decomposition of CDOM during simulated transport from fresh to marine waters. Marine Chemistry (In press)
  366. Edwards, T. E. and R. G. Wetzel. 2004. Nutrient cycling. In: J. Peters, Editor. Encyclopedia of Hydrological Sciences. Elesiver Publishers, London. (In press)
  367. Ervin, G. N. and R. G. Wetzel. 2004. Incidental autotoxicity in aggressively growing, clonal herbaceous plants. Journal of Ecology (In review)
  368. Wetzel, R. G. 2004. Invasive plants of wetland ecosystems: Disturbance experiments that mediate ecological understanding. Plant and Soil (In press)
  369. Vähätalo, A. V. and R. G. Wetzel. 2004. Contribution of dissolved organic matter, particles, and pigments to total light absorption in the drainage basin and estuary of Neuse River, North Carolina (USA). Journal of Plankton Research (In review)
  370. Tietjen, T., A. V. Vähätalo, and R. G. Wetzel. 2004. Effects of clay mineral turbidity on dissolved organic carbon and bacterial production. Limnology and Oceanography (In review)
  371. Wetzel, R. G. and G. E. Likens, Editors. 2004. Encyclopedia of Aquatic Sciences. Academic Press, San Diego. (In development)
  372. Wetzel, R. G. 2004. Wetland ecosystem processes. In: D. P. Batzer and R. R. Sharitz, Editors. Ecology of Freshwater and Estuarine Wetlands. Academic Press, San Diego. (In press)
  373. Miller, B. E., M. H. Wen, F. J. Molz, E. E. Roden, R. G. Wetzel, and C. A. Lange. 2004. Modeling reactive iron transport in a freshwater wetland sediment. Journal of Hydrology (Submitted)
  374. Carlton, R. G. and R. G. Wetzel. 2004. Epipelic periphyton productivity in an oligotrophic marl lake: Annual contribution to primary productivity. Can. J. Fish. Aquat. Sci. (In preparation).
  375. Wetzel, R. G. 2004. The Ecology of Aquatic Plants and Littoral Ecosystems. Academic Press, San Diego. (In preparation).
  376. Wetzel, R. G., Editor. 2004. A Manual for the Assessment of Periphyton Communities. Junk Publishers B.V., Amsterdam. (In preparation).


Invited Lectures and Seminars

  1. Department of Biological Sciences, University of Pittsburgh, Pennsylvania (1964)
  2. Department of Botany, Michigan State University, East Lansing, Michigan (1964)
  3. Zoology Department, Indiana University, Bloomington (1964)
  4. Symposium on Primary Productivity in Aquatic Environments, Hydrobiological Institute, Pallanza, Italy (1964)
  5. Kellogg Biological Station, Michigan State University, Michigan (1965)
  6. Symposium on Biogenic Metabolism in Fresh Waters, Hydrobiologische Anstalt, Max-Planck-Gesellschaft, Plön, Germany (1965)
  7. Institute of Ecology, University of Warsaw, Poland (1965)
  8. Institute of Physiological Botany, University of Uppsala, Sweden (1965)
  9. Marine Laboratory, Aberdeen, Scotland (1965)
  10. Department of Biology, Western Michigan University, Kalamazoo (1966)
  11. Department of Zoology, University of Wisconsin, Milwaukee (1967)
  12. Limnological Research Center, Department of Geology, University of Minneapolis, Minnesota (1967)
  13. Department of Botany and Plant Pathology, Iowa State University, Ames (1967)
  14. Department of Biology, University of Notre Dame, Indiana (1969)
  15. Departments of Civil Engineering and Zoology, University of Washington, Seattle (1969)
  16. Department of Zoology-Institute of Fisheries, University of British Columbia, Vancouver (1969)
  17. Rudolfs Research Conference on Organic Compounds in Aquatic Environments, Rutgers University, New Jersey (1969)
  18. Department of Zoology, University of Toronto, Ontario (1970)
  19. Department of Biology, Wake Forest University, Winston-Salem, North Carolina (1970)
  20. Afdelingen Vegetatiekunde en Exp. Oecologie, University of Amsterdam, Netherlands (1970)
  21. Hydrobiological Laboratory, Czechoslovakian Academy of Sciences, Prague, Czechoslovakia (1970)
  22. Symposium on Production Problems of Freshwaters, Kazimierz Dolny, Poland (1970)
  23. Limnological Institute, Soviet Academy of Sciences, Leningrad, USSR (1970)
  24. Department of Biology, Wayne State University, Detroit (1970)
  25. Symposium on Aquatic Macrophytes, Romanian Academy of Sciences, Tulcea, Romania (1970)
  26. Institute of Limnology, Romanian Academy of Sciences, Bucharest, Romania (1970)
  27. Symposium on Algal Populations, Freshwater Biological Association, Windermere, England (1970)
  28. Aquatic Primary Productivity Workshop, University of Wisconsin, Madison (1970)
  29. Brookhaven Symposia in Biology, Carbon and the Biosphere, Brookhaven National Laboratories, Upton, New York (1971)
  30. Symposium on Nutrients and Eutrophication, The Limiting Nutrient Controversy, American Society of Limnology and Oceanography, Michigan State University (1971)
  31. Department of Biology, Kalamazoo College, Kalamazoo, Michigan (1971)
  32. Institute of Ecology, University of Georgia, Athens (1971)
  33. Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire (1971)
  34. Department of Soils Science, Michigan State University, East Lansing (1972)
  35. Center for Great Lakes Research, University of Wisconsin, Milwaukee (1972)
  36. Symposium Semisaeculare, International Association of Limnology, Germany (1972)
  37. IBP-UNESCO Symposium on Detritus and Its Ecological Role in Aquatic Ecosystems, Pallanza, Italy (1972)
  38. Aquatic Plant Management Workshop, U.S. Department of the Agriculture, Denver (1972)
  39. UNESCO-IBP Synthesis Symposium on Freshwater Research, University of Reading, England (1972)
  40. Kellogg Biological Station, Michigan State University (1972)
  41. Stream Ecosystem Workshop, Stroud Research Center, Avondale, Pennsylvania (1973)
  42. Decomposition Working Group, 1st International Seagrass Workshop, Amsterdam (1973)
  43. Department of Botany, University of Wisconsin, Madison (1973)
  44. Department of Biology, Wayne State University, Detroit (1974)
  45. Department of Biology, Dalhousie University, Halifax (1974)
  46. Department of Biology, University of Guelph, Ontario (1974)
  47. Department of Biology, Queen's University, Kingston, Ontario (1974)
  48. Conference on Lake Protection and Lake Management, University of Wisconsin, Madison (1974)
  49. Department of Biological Sciences, Amherst College, Amherst, Massachusetts (1975)
  50. Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee (1975)
  51. Colloquium Speaker, University of Michigan, Dearborn (1975)
  52. Aquatic Plant Investigations Symposium, University of Florida, Fort Lauderdale, Florida (1975)
  53. Invited Speaker, Symposium on Atmospheric Pollution of Lakes, International Association for Great Lakes Research, Geneva Park, Ontario (1975)
  54. Colloquium Speaker, American Institute of Fishery Biologists, Michigan State University, East Lansing (1976)
  55. Department of Biology, University of Notre Dame, Indiana (1976)
  56. Great Lakes Research Division and Department of Ecology and Evolution, University of Michigan, Ann Arbor (1976)
  57. Colloquium Speaker, Department of Botany, Purdue University, West Lafayette, Indiana (1976)
  58. National Evaluator Ecology Programs for ERDA-NSF, Battelle Northwest National Laboratories, Richmond, Washington (1976)
  59. National Evaluator Ecology Programs for ERDA-NSF, Lawrence Laboratories, University of California, Berkeley (1976)
  60. Invited Speaker, Symposium on Productivity of Marshes, Ecological Society of America, New Orleans (1976)
  61. Invited Speaker, Symposium on Interactions between Sediments and Water, Amsterdam, Netherlands (1976)
  62. Department of Biology, Wayne State University, Detroit (1976)
  63. Invited Speaker, Second International Symposium on Paleolimnology, Warsaw, Poland (1976)
  64. Michigan Botanical Club, Southwestern Michigan Chapter, Kalamazoo (1977)
  65. Invited Speaker, National Symposium on Freshwater Wetlands, Rutgers University, New Jersey (1977)
  66. Colloquium Speaker, Division of Systematics and Ecology, Cornell University, Ithaca, New York (1977)
  67. Seminar Speaker, Plant Research Laboratory, Michigan State University, East Lansing (1977)
  68. Seminar Speaker, Division of Biological Sciences, Indiana University, Bloomington (1977)
  69. Colloquium Speaker, Department of Limnology, University of Oslo, Norway (1977)
  70. Invited Speaker, Symposium on Lake Metabolism and Lake Management, Uppsala University, Uppsala, Sweden (1977)
  71. Seminar Speaker, Department of Biology, University of Tennessee, Knoxville (1977)
  72. Colloquium Speaker, Department of Botany and Department of Zoology,
    University of Winnipeg, Manitoba (1978)
  73. Seminar Speaker, Department of Biology, McGill University, Montreal, Quebec (1978)
  74. Colloquium Speaker, Department of Biological Sciences, Michigan Technological University, Houghton, Michigan (1978)
  75. Turner Distinguished Lecture, Department of Geology and Mineralogy, University of Michigan, Ann Arbor (1979)
  76. Plenary Speaker, North American Lake Management Conference, Michigan State University, East Lansing (1979)
  77. Senior Science Lecture, Canada Centre for Inland Waters, Environment Canada, Burlington, Ontario (1979)
  78. Invited National Lecture, Japanese Society of Limnology, Sendai, Japan (1979)
  79. Seminar Speaker, Department of Botany and Department of Zoology, University of Florida, Gainesville (1979)
  80. Colloquium Speaker, Department of Biological Sciences, University of Pittsburgh, Pennsylvania (1980)
  81. Invited Plenary Speaker, Workshop on Aquatic Ecosystem Management,
    U.S. Corps of Engineers, Monterey, California (1980)
  82. Invited Colloquium Speaker, Institute of Limnology, University of Lund, Sweden (1980)
  83. Invited Speaker, Departments of Botany, Fisheries & Wildlife and Zoology, Oregon State University, Corvallis, Oregon (1980)
  84. Invited Speaker, Department of Ecology and Behavioral Biology, University of Minnesota, Minneapolis, Minnesota (1980)
  85. Invited Speaker, Center for Great Lakes Studies, University of Wisconsin, Milwaukee (1981)
  86. Colloquium Speaker, Department of Botany, University of Rhode Island,
    Kingston, Rhode Island (1981)
  87. Invited Speaker, Department of Biology, University of Wisconsin,
    Oshkosh, Wisconsin (1981)
  88. Invited Lecturer, 13th International Botanical Congress, University of Sydney, Sydney, Australia (1981)
  89. Distinguished Lecturer, Department of Forest Ecology and Florida State Museum, University of Florida, Gainesville, Florida (1981)
  90. Dalgarno Distinguished Lecture Series, Department of Botany, University of Manitoba, Winnipeg, Manitoba (1981)
  91. Invited Speaker, Department of Botany and Plant Pathology, Michigan State University, East Lansing (1982)
  92. Erlander Professorship Inaugural Address, Swedish National Research Council, Stockholm, Sweden (1982)
  93. Invited Speaker (Series), Institute of Limnology, Uppsala University, Uppsala, Sweden (1983)
  94. Keynote Speaker, Rotary International, Uppsala University, Uppsala, Sweden (1983)
  95. Invited Speaker, Algal Ecology, Institute of Plant Ecology, Uppsala University, Uppsala, Sweden (1983)
  96. Invited Discussant, Tvärminne Zoological Station, University of Helsinki, Tvärminne, Finland (1983)
  97. Invited Speaker, Lammi Biological Station, University of Helsinki,
    Lammi, Finland (1983)
  98. Invited Speaker, Norwegian Institute for Water Research and University of Oslo, Oslo, Norway (1983)
  99. Keynote Speaker, National Federated Garden Clubs of America, Mackinac Island, Michigan (1983) insideairplane.jpg
  100. Green Distinguished Lectureship, Department of Biology, University of Notre Dame, Notre Dame, Indiana (1983)
  101. Invited Speaker, EPSCOR Program, State of Arkansas, Fayetteville, Arkansas (1983)
  102. Invited Speaker, Department of Botany and Microbiology, University of Arkansas, Fayetteville, Arkansas (1983)
  103. Invited Speaker, Department of Biology, University of Oklahoma,
    Norman, Oklahoma (1984)
  104. Keynote Speaker, Annual Meetings, Oklahoma Academy of Sciences, Arts, and Letters, Stillwater, Oklahoma (1984)
  105. Distinguished Lecture Series, Oklahoma State University, Stillwater, Oklahoma (1984)
  106. Speaker, Swedish Science Research Council, Stockholm, Sweden (1984)
  107. Keynote Speaker, Erlander Symposium on Freshwater Acidification,
    University of Uppsala, Uppsala, Sweden (1984)
  108. Keynote Speaker, Shiga Conference '84 on Conservation and Management of World Lake Environment, Otsu, Japan (1984)
  109. Invited Speaker, Submersed Macrophyte Symposium, Rensselaer Polytechnic Institute, Troy, New York (1984)
  110. Advisor, Acidification of Lakes and Streams and Aluminum Toxicity Programs, Washington, D.C. (1985)
  111. Keynote Address, 81st Annual Convention, Michigan Audubon Society,
    Kalamazoo, Michigan (1985)
  112. Advisor, Paleoecological Investigation of Recent Lake Acidification Program, University of Florida, Gainesville, Florida (1985)
  113. Invited Speaker, College of Environmental Science and Forestry, State University of New York, Syracuse, New York (1985)
  114. Invited Speaker, Biology Colloquium, Kent State University, Kent, Ohio (1985)
  115. Advisor, Conference on Moose River Acidification Research Program,
    Hamilton, New York (1985)
  116. National Advisor, Scientific Research in Hydrobiology of Finland, Finnish Academy of Sciences, Helsinki, Finland (1985)
  117. Advisor, Conference on SO2 and Plant Productivity, Stanford University, Palo Alto, California (1985)
  118. Invited Speaker, Limnological Institute, University of Uppsala, Uppsala, Sweden (1985)
  119. Invited Speaker, Great Lakes Research Division, University of Michigan, Ann Arbor, Michigan (1986)
  120. Invited Speaker, Division of Biological Sciences, University of Michigan, Ann Arbor, Michigan (1986)
  121. Keynote Speaker, Freshwater Wetlands and Wildlife Symposium, University of Georgia and Savannah River Ecology Laboratory, Charleston, South Carolina (1986)
  122. Invited Speaker, Michigan Society of Professional Engineers, Kalamazoo, Michigan (1986)
  123. Colloquium Speaker, The University of Toledo, Toledo, Ohio (1987)
  124. Invited Speaker, Savannah River Ecology Laboratory, Aiken, South Carolina (1987)
  125. Plenary Speaker, International Conference on Scientific Perspectives in Theoretical and Applied Limnology, Verbania Pallanza, Italy (1988)
  126. Advisor, International Lake Environment Foundation, Lake Biwa, Otsu, Shiga, Japan (1988)
  127. Dedication Speaker, Max-Planck-Institute für Limnologie, Plön, Holstein, Federal Republic of Germany (1988)
  128. Advisor, Conference on Responses of Plants to Interacting Stress, Boyce Thompson Plant Research Institute, Ithaca, New York (1988)
  129. Invited Speaker, Department of Biology, University of Alabama, Tuscaloosa, Alabama (1988)
  130. Invited Speaker, Department of Biology, University of Alberta, Edmonton, Alberta, Canada (1989)
  131. Advisor, Regional Integrated Lake-Watershed Acidification Study, Electric Power Research Institute, Palo Alto, California (1989)
  132. Bessey Memorial Lecturer, Department of Botany, Iowa State University,
    Ames, Iowa (1989)
  133. Invited Seminar Speaker, Department of Botany, Iowa State University,
    Ames, Iowa (1989)
  134. Invited Speaker, Department of Biological Sciences, Bowling Green State University, Bowling Green, Ohio (1989)
  135. Keynote Speaker, New Jersey Academy of Sciences, Wayne, New Jersey (1989)
  136. Invited Speaker, Dahlem Internationale Konferenz, Berlin,
    Federal Republic of Germany (1989)
  137. Plenary Speaker, International Workshop on Exoenzymes in Aquatic Ecosystems, Munich, Federal Republic of Germany (1989)
  138. Baldi Memorial Lecturer, 24th Congress, International Association of Theoretical and Applied Limnology, Munich, Federal Republic of Germany (1989)
  139. Invited Ecology Speaker, Resource Ecology Series,University of Michigan, Ann Arbor, Michigan (1989)
  140. Keynote Speaker, Wetlands Research Conference, Old Woman Creek National Estuarine Research Reserve, Huron, Ohio (1989)
  141. Invited Speaker, Institute of Ecosystem Studies, New York Botanical Gardens, Millbrook, New York (1990)
  142. Keynote Speaker, Future Directions in Botanical Research, Department of Botany, Louisiana State University, Baton Rouge, Louisiana (1990)
  143. Keynote Speaker, Lake Environment Forum, Nagano Research Institute for Health and Pollution, Nagano, Japan. (1990)
  144. Invited Evaluator, Suwa Hydrobiological Station, Suwa City, Japan (1990)
  145. Invited Speaker, 3rd Annual Meeting, International Lake Environment Committee Foundation, Otsu, Japan. (1990)
  146. Invited Evaluator, Genetics and Ecology of Microbial Biofilms, University of Tennessee, Knoxville, Tennessee (1990)
  147. Keynote Lecturer, International Symposium on Dissolved Organic Matter in Lacustrine Ecosystems: Energy Source and System Regulator. Lammi Biological Station, University of Helsinki, Lammi, Finland (1990)
  148. Keynote Lecturer, International Symposium on the Dynamics and Use of Lacustrine Ecosystems, Finnish Limnological Society, Helsinki, Finland (1990)
  149. Keynote Speaker, Minnesota Lake Management Federation Conference, Brainerd, Minnesota (1990)
  150. Invited Speaker, Department of Biological Sciences, Michigan Technological University, Houghton, Michigan (1990)
  151. Invited Speaker, Department of Biological Sciences, Mississippi State University, Mississippi State City, Mississippi (1990)
  152. Invited Speaker, Department of Biological Sciences, Loyola University, New Orleans, Louisiana (1990)
  153. Invited Speaker, Department of Botany and Center for Wetland Resources, Louisiana State University, Baton Rouge, Louisiana (1990)
  154. Invited Speaker, Department of Biological Sciences, University of Mississippi, Oxford, Mississippi (1991)
  155. Invited Speaker, Department of Biological Sciences and Center for Great Lakes Studies, University of Wisconsin, Milwaukee, Wisconsin (1991)
  156. Invited Evaluator, Genetic Ecology of Biofilms and Microbially Induced Corrosion, University of Tennessee, Knoxville, Tennessee (1991)
  157. Invited Speaker, Department of Biology, University of Southwestern Louisiana, Lafayette, Louisiana (1991)
  158. Keynote Speaker, Society of Wetland Scientists Annual Meeting, University of Michigan, Ann Arbor, Michigan (1991)
  159. Keynote Speaker, Symposium on the Past Quarter Century of Ecological Science, W. K. Kellogg Biological Station, Michigan State University, Hickory Corners, Michigan (1991)
  160. Speaker, 1st International Conference on the Limnology and Fisheries of Lake Tanganyika, University of Kuopio, Kuopio, Finland (1991)
  161. Keynote Speaker, International Symposium on Constructed Wetlands for Water Quality Improvement, Pensacola, Florida (1991)
  162. Invited Speaker, Department of Biology, University of Alabama at Birmingham Birmingham, Alabama (1992)
  163. Keynote Lecture, International Symposium on New Perspectives in Aquatic Ecosystem Research, Royal Netherlands Academy of Science, Amsterdam, The Netherlands (1992)
  164. Keynote Lecture, International Symposium on Nutrient Regeneration in Ecosystems, British Society of General Microbiology, Dublin, Ireland (1992)
  165. Invited Speaker, Department of Biology, Lamar University, Beaumont, Texas (1992)
  166. Invited Speaker, School of Law, University of Alabama, Tuscaloosa, Alabama (1993)
  167. Invited Speaker, National Institute for Global Environmental Change Symposium on Global Change Research, Tuscaloosa, Alabama (1993)
  168. Invited Speaker, Eutrophication Colloquium, 5th International Conference of the International Lake Environment Committee, Stresa, Italy (1993)
  169. Keynote Speaker, Minorities Colloquium, Annual Meetings, American Society of Limnology and Oceanography, Edmonton, Alberta (1993)
  170. Invited Speaker, Southeastern Marine Ecology Consortium, Dauphin Island, Mobile, Alabama (1993)
  171. Invited Speaker, Savannah River Ecology Laboratory, University of Georgia, Aiken, South Carolina (1993)
  172. Invited Speaker, Symposium on Phosphorus-Enzyme Complexes, American Society of Soil Science, Cinncinati, Ohio (1993)
  173. Invited Speaker, International Workshop on Impacts of UV-B Radiation on Pelagic Communities of Freshwater Ecosystems, Lehigh University, Bethlehem, Pennsylvania (1993)
  174. Invited Speaker, Institute of Ecology, University of Georgia Athens, Georgia (1994)
  175. Invited Speaker, Institute of Aquatic Resources, University of Connecticut Storrs, Connecticut (1994)
  176. Lecture Series, Institut für Zoologie, Abt. Limnologie, Universität Innsbruck, Innsbruck, Austria (1994)
  177. Invited Speaker, International Lake Environment Committee Foundation Lake Biwa Research Institute, Otsu, Japan (1994)
  178. Invited Speaker, Department of Biology, University of Louisville, Louisville, Kentucky (1994)
  179. Invited Speaker, Alabama Experimental Programs to Stimulate Competitive Research University of Alabama, Tuscaloosa, Alabama (1994)
  180. Plenary Speaker, Environmental and Ecology Program, Alfred University, Alfred, New York (1994)
  181. Invited Plenary Speaker, Symposium on Biogeochemistry of Wetlands, Orlando, Florida (1994)
  182. Invited Speaker, Oakmulgee Chapter, Society of American Foresters, Talladega, Alabama (1994)
  183. Invited Speaker, Workshop on Carbon Dynamics in Aquatic Ecosystems, Woods Hole, Massachusetts (1995)
  184. Invited Speaker, Department of Soil Sciences, University of Florida, Gainesville, Florida (1995)
  185. Invited Plenary Speaker, 6th Congress, International Lake Environment Committee Foundation, Kasumigaura, Japan (1995)
  186. Invited Keynote Speaker, 3rd National Congress of Portuguese Biologists Association, Lisbon, Portugal (1995)
  187. Invited Plenary Speaker, Wetlands Section, Soil Science Society of America, St. Louis, Missouri (1995)
  188. Invited Speaker, Entering Medical Class, University of Alabama, Tuscaloosa, Alabama (1996)
  189. Invited Keynote Speaker, Department of Biological Sciences and Sigma Xi Honorary Lecturer, Kent State University, Kent, Ohio (1996)
  190. Invited Speaker, Ohio Lake Management Society, Columbus, Ohio (1996)
  191. Invited Speaker, International Workshop on Role of Submerged Macrophytes in Structuring the Biological Community and Biogeochemical Dynamics in Lakes, Freshwater Centre, Silkeborg, Denmark (1996)
  192. Invited Keynote Speaker, Symposium on Contemporary Limnology, University of Uppsala, Uppsala, Sweden (1996)
  193. Invited Speaker, Department of Ecology, Evolution, and Organismal Biology, Tulane University, New Orleans, Louisiana (1996)
  194. Invited Plenary Lecturer, Irish Academy of Sciences, Dublin, Ireland (1996)
  195. Invited Speaker, Master Energy Education Teachers Colloquium, University of Alabama, Tuscaloosa, Alabama (1996)
  196. Invited Keynote Speaker, Centennial of the Freshwater Biological Laboratory, University of Copenhagen, Copenhagen, Denmark (1997)
  197. Invited Speaker, Department of Biology, Loyola University, Chicago, Illinois (1997)
  198. Invited Lecture, Department of Fisheries and Allied Aquacultures, Auburn University, Auburn, Alabama (1997)
  199. Lecture Series in Aquatic Ecology, Universität Innsbruck, Innsbruck, Austria (1997)
  200. Invited Plenary Lecturer, Institüt für Zoologie und Limnologie, Universität Innsbruck, Austria (1997)
  201. Invited Lecture, Institut für Limnologie, Max-Planck-Gesellschaft, Plön, Germany (1997)
  202. Invited Plenary Lecture, Limnologische Gesellschaft Deutschland, Frankfurt, Germany (1997)
  203. Invited Lecture, Department of Biological Sciences, University of Alabama, Tuscaloosa, Alabama (1997)
  204. Invited Speaker, Departments of Biology and of Fisheries and Wildlife, Texas A & M University, College Station, Texas (1997)
  205. Invited Lecture, British Ecological Society, Sheffield, England (1997)
  206. Invited Lecture, Institute of Limnologie, Universität Konstanz, Konstanz, Germany (1998)
  207. Invited Plenary Lecture, Division of Limnology, EAWAG, Dübendorf/ Zürich, Switzerland (1998)
  208. Invited Lecture, National Center for the Development of Natural Products, School of Pharmacy, University of Mississippi, Oxford, Mississippi (1998)
  209. Pettingill Lecturer, University of Michigan Biological Station, Pellston, Michigan (1998)
  210. Invited Lecture, Institut für Mikrobiologie, Max-Planck-Gesellschaft Bremen, Germany (1998)
  211. Invited Lecture, Institut für Gewässerökologie und Binnenfischerei, Universität Berlin, Neuglobsow, Germany (1998)
  212. Invited Lecture, Max-Planck-Institut für Limnologie, Plön, Germany (1998)
  213. Invited Distinguished Lecture, School of the Environment, Duke University Durham, North Carolina (1998)
  214. Invited Lecture, Department of Biological Sciences, Bowling Green State University, Bowling Green, Ohio (1999)
  215. Keynote Lecture, 100th Anniversary of Japanese Society of Limnology, University of Shiga Prefecture, Hikone, Japan (1999)
  216. Invited Lecture, Hokkaido University, Hokkaido, Japan (1999)
  217. Invited Lecture, School of Ocean Environments, Tokyo University of Fisheries, Tokyo, Japan (1999)
  218. Invited Lecture, Ecological Research Center, Kyoto University, Kyoto, Japan (1999)
  219. Invited Lecture, Lake Biwa Museum, Otsu, Shiga, Japan (1999)
  220. Invited Lecture, Max-Planck-Institut für Limnologie, Plön, Germany (1999)
  221. Invited Lecture, Department of Fisheries and Wildlife, Utah State University, Logan, Utah (2000)
  222. Invited Plenary Lecture, Workshop on Dissolved Organic Matter, Institute of Ecosystem Studies, Millbrook, New York (2000)
  223. Invited Lecture, Phi Beta Kappa, University of Alabama, Tuscaloosa, Alabama (2000)
  224. Invited Plenary Lecture, International Symposium on Sustainability of Wetlands and Water Resources, University of Mississippi, Oxford, Mississippi (2000)
  225. Invited Plenary Lecture, International Symposium on Chemical Ecology, National Center for Natural Products Research, Oxford, Mississippi (2000)
  226. Invited Plenary Lecture, Linkages between Terrestrial and Aquatic Ecosystem Workshop, Annual Meetings, American Society of Limnology and Oceanography, Copenhagen, Denmark (2000)
  227. Invited Plenary Lecture, 2nd International Symposium on Refractory Organic Substances in the Environment, Universität Karlsruhe, Germany (2000)
  228. Invited Plenary Lecture, Wetlands at the Millennium, International Association of Ecology, Québec City, Québec, Canada (2000)
  229. Invited Seminar Lecture, Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, North Carolina (2000)
  230. Invited Plenary Lecture, 7th International Conference on Wetland Systems for Water Pollution Control, Orlando, Florida (2000)
  231. Invited Lecture, Départment de Sciences Biologiques, Université de Montréal, Montréal, Québec, Canada (2001)
  232. Invited Lecture, Department of Environmental Engineering Sciences, University of Florida, Gainesville, Florida (2001)
  233. Invited Lecture, Department of Environmental Sciences, Duke University, Durham, North Carolina (2002)
  234. Invited Lecture, Carolina Environmental Program, University of North Carolina, Chapel Hill, North Carolina (2002)
  235. Invited Lecture, Department of Soil and Water Sciences, University of Florida, Gainesville, Florida (2003)
  236. Invited Lecture, Curriculum in Ecology, Department of Biology, University of North Carolina, Chapel Hill, North Carolina (2003)
  237. Invited Lecture, Environmental Program, IBM Corporation, Research Triangle, North Carolina(2003)
  238. Invited Lecture, Department of Ecological and Environmental Sciences, University of Helsinki, Helsinki, Finland (2003)
  239. Invited Lecture, Institute of Marine Sciences, University of North Carolina, Moorehead City, North Carolina (2003)
  240. Invited Lecture, Center for Applied Aquatic Ecology, North Carolina State University, Raleigh, North Carolina (2003)
  241. Invited Lecture, Department of Biology, Appalachian State University, Boone, North Carolina (2004)
  242. Invited Lecture, Department of Environmental Sciences and Engineering, University of Notre Dame, Notre Dame, Indiana (2004)
  243. Invited Lecture, Department of Ecology, Evolution, and Behavior. University of Minnesota, St. Paul, Minnesota (2004)


Abstracts (Published) of Papers Given at Scientific Meetings

  1. Wetzel, R. G. 1960. Marl decomposition of hydrophytes in several Michigan lakes. Bull. Ecol. Soc. Amer. 41:42.
  2. Wetzel, R. G. 1962. Primary productivity of aquatic macrophytes. Absts., 15th International Congress of Limnology, Madison, Wisconsin.
  3. Wetzel, R. G. 1965. Productivity and nutritional relationships in marl lakes of northeastern Indiana. Absts., 16th International Congress of Limnology, Poland.
  4. Wetzel, R. G. 1968. Nutritional factors influencing photosynthesis by aquatic macrophytes in hard-water lakes. Absts. 17th Int. Congress Theor. Appl. Limnology, Jerusalem, Israel.
  5. Wetzel, R. G. 1969. Dissolved organic matter of marl lakes. Rudolfs Research Conference on Organic Compounds in Aquatic Environments. Rutgers University, New Jersey.
  6. Miller, M. C. and R. G. Wetzel. 1969. Ultraviolet absorption in lake waters: Its relationship to dissolved organic carbon. Absts., 73rd Annual Meeting, Michigan Academy of Sciences, Arts, and Letters, Ann Arbor.
  7. Wetzel, R. G. and H. L. Allen. 1969. Functions and interactions of dissolved organic matter in lake metabolism. Absts., 11th International Botanical Congress, Seattle.
  8. Rich, P. H. and R. G. Wetzel. 1969. Benthic respiration: Significance to detrital metabolism and a method of measurement. Absts., 73rd Annual Meeting, Michigan Academy of Sciences, Arts, and Letters, Ann Arbor.
  9. Allen, H. L. and R. G. Wetzel. 1969. Primary productivity of epiphytic algae. Absts., 73rd Annual Meeting, Michigan Academy of Sciences, Arts, and Letters, Ann Arbor.
  10. Wetzel, R. G. and P. H. Rich. 1970. Production and role of aquatic macrophytes in a southern Michigan marl lake. Absts., IBP/UNESCO Symposium on Aquatic Macrophytes, Romanian Academy of Sciences, Tulcea, Romania.
  11. Wetzel, R. G. and H. L. Allen. 1970. Functions and interactions of dissolved organic matter and the littoral zone in lake metabolism and eutrophication. Absts., Symposium on Productivity Problems of Fresh Waters. Kazímierz Dolny, Poland.
  12. Miller, M. C., B. A. Manny and R. G. Wetzel. 1970. Ultraviolet photolysis of dissolved organic nitrogen compounds. I. Modification of the technique for dissolved organic nitrogen determination in fresh water. Absts., 33rd Annual Meeting, American Society of Limnology and Oceanography, Kingston, Rhode Island.
  13. Manny, B. A., M. C. Miller and R. G. Wetzel. 1970. Ultraviolet combustion of dissolved organic nitrogenous compounds. II. Quantification and characterization of labile and refractory fractions in lake waters. Absts., 33rd Annual Meeting, American Society of Limnology and Oceanography, Kingston, Rhode Island.
  14. Wetzel, R. G. and B. Ulehlová. 1971. Decomposition and mineral cycling. In: IBP/ UNESCO Symposium on Macrophytes. Hidrobiologia (Romania) 12:391-392.
  15. Rich, H., R. G. Wetzel and N. Van Thuy. 1971. Distribution, production and role of aquatic macrophytes in a southern Michigan marl lake. In: IBP/UNESCO Symposium on Macrophytes. Hidrobiologia (Romania) 12:199-201.
  16. Kvêt, J. and R. G. Wetzel. 1971. Emergent macrophytes. In: IBP/UNESCO Symposium on Macrophytes. Hidrobiologia (Romania) 12:389-390.
  17. Wetzel, R. G. 1971. Dissolved and particulate organic detritus in lakes. Absts., Symposium on Role of Detritus in Ecosystems, Institute of Ecology, University of Georgia, Athens, Georgia.
  18. Wetzel, R. G. 1971. Sedimentary pigment degradation products of a marl lake in southern Michigan. Absts., 75th Annual Meeting, Michigan Academy of Science, Arts, and Letters, Kalamazoo, Michigan.
  19. Rich, P. H. and R. G. Wetzel. 1971. Benthic detritus in a small Michigan lake. Absts., 18th International Congress of Theoretical and Applied Limnology, Leningrad, USSR.
  20. Wetzel, R. G. and B. A. Manny. 1971. Excretion of organic carbon and nitrogen by aquatic macrophytes. Absts., 18th International Congress of Theoretical and Applied Limnology, Leningrad, USSR.
  21. Hough, R. A. and R. G. Wetzel. 1972. Photorespiration in aquatic macrophytes: Measurement and ecological significance. Absts., 35th Annual Meeting, American Society of Limnology and Oceanography, Tallahassee, Florida.
  22. Wetzel, R. G. and P. H. Rich. 1972. Metabolism of dissolved and particulate detrital carbon in a temperate hard-water lake. In: IBP/UNESCO Symposium on Detritus and Its Role in Aquatic Ecosystems. Pallanza, Italy.
  23. Otsuki, A. and R. G. Wetzel. 1972. Coprecipitation of phosphate with carbonate in a marl lake. Absts., 35th Annual Meeting, American Society of Limnology and Oceanography, Tallahassee, Florida.
  24. Manny, B. A. 1972. Organic nitrogen content of natural net and nannophytoplankton. Absts., 35th Annual Meeting, American Society of Limnology and Oceanography, Tallahassee, Florida.
  25. Manny, B. A., R. G. Wetzel and K. W. Cummins. 1972. Diurnal changes in dissolved organic carbon and nitrogen in a natural hardwater stream. Absts., Special Meeting, American Society of Limnology and Oceanography and American Institute of Biological Sciences, Minneapolis, Minnesota.
  26. Wetzel, R. G. and B. A. Manny. 1972. Decomposition of dissolved organic carbon and nitrogen compounds from leaves in an experimental hardwater stream. Absts., Special Meeting, American Society of Limnology and Oceanography and American Institute of Biological Sciences, Minneapolis, Minnesota.
  27. Hough, R. A. and R. G. Wetzel. 1972. Measurement and significance of photorespiration in submersed aquatic macrophytes. Absts., 1972 Annual Meeting, American Society of Plant Physiologists.
  28. White, W. S. and R. G. Wetzel. 1973. Annual cycle of sedimentation in a small hardwater lake. Absts., 75th Annual Meeting, Michigan Academy of Science, Arts, and Letters, Ann Arbor, Michigan.
  29. Wetzel, R. G. 1973. Research on structure and function of detritus of stream ecosystems of a small lake watershed, southwestern Michigan. Absts., Conference on Stream Ecosystems, Stroud Water Research Center, Avondale, Pennsylvania.
  30. Hough, R. A. and R. G. Wetzel. 1973. In situ photorespiration and organic carbon release in submersed macrophytes: diel, seasonal, and community relationships. Absts., 36th Annual Meeting, American Society of Limnology and Oceanography, University of Utah, Salt Lake City, Utah.
  31. White, W. S. and R. G. Wetzel. 1973. The role of calcium carbonate precipitation in lake metabolism. Absts., 36th Annual Meeting, American Society of Limnology and Oceanography, University of Utah, Salt Lake City, Utah.
  32. Otsuki, A. and R. G. Wetzel. 1974. Release of dissolved organic matter by autolysis of a submersed macrophyte, Scirpus subterminalis. Absts., 19th International Congress of Theoretical and Applied Limnology, Winnipeg, Manitoba.
  33. Manny, B. A., R. G. Wetzel and W. C. Johnson. 1974. Annual contribution of carbon, nitrogen and phosphorus by Canada geese to a hardwater lake. Absts., 19th International Congress of Theoretical and Applied Limnology, Winnipeg, Manitoba.
  34. White, W. S. and R. G. Wetzel. 1974. Nitrogen, phosphorus, particulate and colloidal carbon content of sedimenting seston of a hard-water lake. Absts., 19th International Congress of Theoretical and Applied Limnology, Winnipeg, Manitoba.
  35. Hough, R. A. and R. G. Wetzel. 1974. The release of dissolved organic carbon by submersed aquatic macrophytes: diel, seasonal, and community relationships. Absts., 19th International Congress of Theoretical and Applied Limnology, Winnipeg, Manitoba.
  36. Hough, R. A. and R. G. Wetzel. 1975. CO2 compensation point, internal CO2 recycling, and photorespiration in aquatic plants. Absts., 38th Annual Meeting, American Society of Limnology and Oceanography, Halifax, Nova Scotia.
  37. Ward, A. K. and R. G. Wetzel. 1975. Some effects of sodium on blue-green algal growth. Absts., Annual Meeting, Phycological Society of America.
  38. McKinley, K. R. and R. G. Wetzel. 1975. Photoheterotrophy: Its occurrence and significance to the total carbon budget of a small hard-water lake. Absts., Annual Meeting, Phycological Society of America.
  39. Wetzel, R. G. 1976. Freshwater marshes: Roles in the metabolism of lake systems. Symposium on Production Ecology of Freshwater Tidal and Nontidal Marshes. Absts., Ecological Society of America, New Orleans.
  40. Ward, A. K. and R. G. Wetzel. 1976. Molecular weight fractionation of dissolved organic nitrogen and carbon compounds from two lakes of differing trophic status. Absts., Annual Meeting, Ecological Society of America, Savannah, Georgia.
  41. Barko, J. W., P. G. Murphy and R. G. Wetzel. 1976. Primary production and ecosystem metabolism in a Lake Michigan dune pond. 39th Annual Meeting, American Society of Limnology and Oceanography, Savannah, Georgia.
  42. Hough, R. A. and R. G. Wetzel. 1976. Evaluation of photosynthetic status (C3 vs C4) of some aquatic plants. Absts., Annual Meeting, American Society of Plant Physiologists, Savannah, Georgia.
  43. Godshalk, G. L. and R. G. Wetzel. 1976. Decomposition of macrophytes: Release and utilization of dissolved organic matter. Absts., 39th Annual Meeting, American Society of Limnology and Oceanography, Savannah, Georgia.
  44. McKinley, K. R. and R. G. Wetzel. 1976. Interactions between submersed macrophytes and members of the phytoplankton via dissolved materials. Absts., 39th Annual Meeting, American Society of Limnology and Oceanography, Savannah, Georgia.
  45. Wetzel, R. G. and G. L. Godshalk. 1976. Decomposition of macrophytes and the metabolism of dissolved organic matter in littoral sediments. Absts., International Symposium on Interactions between Sediments and Water, Amsterdam, Netherlands.
  46. Manny, B. A., R. G. Wetzel and R. E. Bailey. 1976. Paleolimnological sedimentation rates of carbon, nitrogen, phosphorus, and fossil pigments in a hypereutrophic hardwater lake: A case history of eutrophication. Absts., 2nd International Symposium on Paleolimnology, Mikolajki, Poland.
  47. Wetzel, R. G. and B. A. Manny. 1976. Postglacial chronology of sedimentation, nutrient deposition, and pigment derivatives of a hardwater marl lake of Michigan. Absts., 2nd International Symposium on Paleolimnology, Mikolajki, Poland.
  48. Cunningham, H. W. and R. G. Wetzel. 1977. Fulvic acid interferences on ATP determinations in sediments. Absts., 40th Annual Meeting, American Society of Limnology and Oceanography, East Lansing, Michigan.
  49. Mickle, A. M. and R. G. Wetzel. 1977. Effectiveness of submersed angiosperm-epiphyte complexes on exchange of nutrients and organic carbon in continuous-flow littoral systems. Absts., 40th Annual Meeting, American Society of Limnology and Oceanography, East Lansing, Michigan.
  50. Godshalk, G. L. and R. G. Wetzel. 1977. Decomposition in the littoral zone of lakes. National Symposium on Freshwater Wetlands: Present Status and Future Needs. Rutgers University, New Brunswick, New Jersey.
  51. Godshalk, G. L. and R. G. Wetzel. 1977. Decomposition of a marine angiosperm, Zostera marina L. 40th Annual Meeting, American Society of Limnology and Oceanography, East Lansing, Michigan.
  52. Wissmar, R. C. and R. G. Wetzel. 1977. Analysis of five North American lake ecosystems. VI. Consumer community structure and production. Absts., 20th International Congress, International Association of Theoretical and Applied Limnology, Copenhagen, Denmark.
  53. Wetzel, R. G. and J. E. Richey. 1977. Analysis of five North American lake ecosystems. VIII. Control mechanisms and regulation. Absts., 20th International Congress, International Association of Theoretical and Applied Limnology, Copenhagen, Denmark.
  54. Wetzel, R. G. 1977. The role of the littoral zone and detritus in lake metabolism. Absts., 1st International Symposium on Lake Metabolism and Lake Management, Uppsala University, Uppsala, Sweden.
  55. Ward, A. K. and R. G. Wetzel. 1978. Photosynthetic responses of blue-green algal populations to variable light intensities. Absts., 41st Annual Meeting, American Society of Limnology and Oceanography, Victoria, British Columbia.
  56. Cunningham, H. W. and R. G. Wetzel. 1978. The hydrology and associated chemical release from a temperate, hardwater wetland. Absts., 41st Annual Meeting, American Society of Limnology and Oceanography, Victoria, British Columbia.
  57. Penhale, P. A. and R. G. Wetzel. 1978. Carbon transport and excretion of dissolved organic carbon in seagrasses. Absts., 41st Annual Meeting, American Society of Limnology and Oceanography, Victoria, British Columbia.
  58. Wetzel, R. G., P. A. Penhale and R. L. Iverson. 1978. Primary productivity, carbon transport, and excretion of dissolved organic carbon in seagrasses. 2nd International Congress of Ecology, Jerusalem, Israel.
  59. Cunningham, H. W. and R. G. Wetzel. 1979. Nitrogen metabolism of a temperate hardwater Typha-Carex wetland. Absts., Winter Meeting, American Society of Limnology and Oceanography, Corpus Christi, Texas.
  60. Francko, D. A. and R. G. Wetzel. 1979. Isolation of cyclic adenosine 3':5'-monophosphate from cultured algae and natural communities. Absts., 42nd Annual Meeting, American Society of Limnology and Oceanography, Stony Brook, New York.
  61. Grace, J. B. and R. G. Wetzel. 1979. Morphological responses of Typha latifolia in wetland habitats. Absts., Annual Meeting, Ecological Society of America, Stillwater, Oklahoma.
  62. Wetzel, R. G. 1979. Lake metabolism: Plant, carbonate, and detrital controls. National Plenary Lecture, Absts., 39th Annual Meeting Japanese Society of Limnology, Sendai, Japan.
  63. Wetzel, R. G. 1980. Regulation of algal growth and population succession in lake ecosystems. Plenary lecture, Symposium on Regulation of Aquatic Ecosystems, Monterey, California.
  64. Francko, D. A. and R. G. Wetzel. 1980. Cyclic adenosine monophosphate: Isolation and potential phytoplanktonic significance in two lakes of differing trophic status. Absts., Annual Meeting of the Michigan Academy of Sciences, Arts, and Letters, Detroit.
  65. Stewart, A. J. and R. G. Wetzel. 1980. Asymmetrical relationships between absorbance, fluorescence and dissolved organic carbon. Absts., 43rd Annual Meetings, American Society of Limnology and Oceanography, Knoxville, Tennessee.
  66. Wetzel, R. G. 1980. Longterm alkaline phosphatase activity dynamics in a hardwater lake and effects of phosphorus enrichments on phytoplankton growth. Absts., 43rd Annual Meeting, American Society of Limnology and Oceanography, Knoxville, Tennessee.
  67. Francko, D. A. and R. G. Wetzel. 1980. Cyclic AMP: Seasonal variations in two lakes and potential ecological significance. Absts., 43rd Annual Meeting, American Society of Limnology and Oceanography, Knoxville, Tennessee.
  68. Dickerman, J. A. and R. G. Wetzel. 1980. Cohort structure within a Typha latifolia population. Absts., 43rd Annual Meeting, American Society of Limnology and Oceanography, Knoxville, Tennessee.
  69. Crumpton, W. G. and R. G. Wetzel. 1980. A method for the preparation of permanent, quantitative mounts of phytoplankton for critical microscopy. Absts., 43rd Annual Meeting, American Society of Limnology and Oceanography, Knoxville, Tennessee.
  70. Crumpton, W. G. and R. G. Wetzel. 1980. Differential effects of growth and loss processes in controlling natural phytoplankton populations. Absts., 43rd Annual Meetings, American Society of Limnology and Oceanography, Knoxville, Tennessee.
  71. Wetzel, R. G. 1980. Algal changes, problems, and prevention. Absts., EPA Workshop on Algal Management and Control, Monterey, California.
  72. Wetzel, R. G. 1980. Longterm dynamics of alkaline phosphatase activity of phytoplankton in a hardwater lake in relation to lake stability and phosphorus enrichments. Absts., 21st Congress, International Association of Theoretical and Applied Limnology, Kyoto, Japan.
  73. Francko, D. A. and R. G. Wetzel. 1981. Regulation of primary productivity in aquatic macrophytes by cyclic AMP. Absts., 44th Annual Meeting, American Society of Limnology and Oceanography, Milwaukee, Wisconsin.
  74. Stewart, A. J. and R. G. Wetzel. 1981. Dissolved humic materials: Photodegradation, sediment effects, and reactivity with phosphate and calcium carbonate precipitation. Absts., 44th Annual Meeting, American Society of Limnology and Oceanography, Milwaukee, Wisconsin.
  75. Wetzel, R. G. 1981. Littoral and wetland communities: Their relationships to freshwater ecosystems. Absts., 13th International Botanical Congress, Sydney, Australia.
  76. Stewart, A. J. and R. G. Wetzel. 1981. Influence of dissolved humic materials on carbon assimilation and alkaline phosphatase activity in natural algal-bacterial assemblages. Absts., Symposium of Terrestrial and Aquatic Humic Materials, University of North Carolina, Chapel Hill, North Carolina.
  77. Wetzel, R. G. 1982. Attached algal-substrata interactions: Fact or myth, and when and how? Absts., 1st International Workshop on Freshwater Periphyton, University of Lund, Växjö, Sweden.
  78. Losee, R. F. and R. G. Wetzel. 1982. Epiphyte shading; Characterization and effects on submersed macrophyte growth. Absts., 1st International Workshop on Freshwater Periphyton. University of Lund, Växjö, Sweden.
  79. Francko, D. A. and R. G. Wetzel. 1982. Stimulation of bicarbonate uptake in submersed aquatic macrophytes by dissolved cyclic AMP. Absts., Plant Biochemistry-Physiology Symposium, Columbia, Missouri.
  80. McKinley, K. R. and R. G. Wetzel. 1982. Effects of the submersed Scirpus subterminalis on algae: Species specific rates of photosynthesis and correlations to seasonal succession. Absts., 1st International Workshop on Freshwater Periphyton, University of Lund, Växjö, Sweden.
  81. Wetzel, R. G. 1982. Attached Freshwater Microbiota: Future Directions. 1st International Workshop on Freshwater Periphyton, University of Lund, Växjö, Sweden.
  82. Taylor, W. T. and R. G. Wetzel. 1983. Longterm daily population dynamics of Rhodomonas minuta in a hardwater lake. Absts., 22nd International Congress of Theoretical and Applied Limnology, Lyon, France.
  83. Wetzel, R. G. 1983. Reservoir Limnology: an Overview. Absts., Arkansas Lakes Symposium, Arkadelphia, Arkansas.
  84. Wetzel, R. G. 1983. DOC-POC functions in aquatic ecosystems. Absts., International Symposium on Detritus Dynamics in Aquatic Ecosystems, Skidaway Institute of Oceanography, University of Georgia, Savannah, Georgia.
  85. Dickerman, J. A., A. J. Stewart and R. G. Wetzel. 1984. Macrophyte production methods and their sensitivity to sampling frequency. Absts., 2nd International Workshop on Aquatic Primary Productivity, Tel-Aviv, Israel.
  86. Wetzel, R. G. 1984. Acidification and the future. Absts., 40th Annual Meeting, Föreningen for Vattenhygien, Stockholm, Sweden.
  87. Wetzel, R. G. 1984. The role of the littoral in normal and acidified lakes. Erlander Seminar on Acidified Aquatic Ecosystems, Uppsala, Sweden.
  88. Wetzel, R. G. and E. S. Brammer. 1984. Benthic plant metabolism in acidified lakes. Erlander Seminar on Acidified Aquatic Ecosystems, Uppsala, Sweden.
  89. Wetzel, R. G. 1984. Metabolism of interfacing zones between the watersheds and lakes: Effects on eutrophication. Absts., Shiga Conference '84 on Conservation and Management of World Lake Environment, Otsu, Japan.
  90. Carlton, R. G., R. L. Losee and R. G. Wetzel. 1984. Comparative microscale oxygen dynamics in periphyton communities. Absts., 4th Winter Meeting, American Society of Limnology and Oceanography, San Francisco, California, December, 1984. Trans. Amer. Geophys. Union 65:902.
  91. Burkholder, J. M. and R. G. Wetzel. 1985. Evidence for significant metabolic interactions between aquatic epiphytes and macrophytes. Absts., 5th Midwest Ecology Conference, Michigan State University, Hickory Corners, Michigan.
  92. Taylor, W. D. and R. G. Wetzel. 1985. Cryptophyte ecology in a hardwater lake of Michigan. Absts., 5th Midwest Ecology Conference, Michigan State University, Hickory Corners, Michigan.
  93. Coveney, M. F. and R. G. Wetzel. 1985. Bacterial utilization of organic carbon excreted by phytoplankton. Absts., Aquatic Microbial Ecology International Symposium, Burlington, Ontario, May 1985.
  94. Walker, G. S., M. F. Coveney, M. J. Klug and R. G. Wetzel. 1985. Isocratic HPLC analysis of adenine nucleotides in environmental samples. Absts., Aquatic Microbial Ecology International Symposium, Burlington, Ontario, May 1985.
  95. Burkholder, J. M. and R. G. Wetzel. 1985. Epiphytic alkaline phosphatase activity and community structure on natural and artificial aquatic plants: Are interactions significant between macrophytes and epiphytes? Absts., 48th Annual Meeting, American Society of Limnology and Oceanography, Minneapolis, Minnesota, June 1985.
  96. Taylor, W. D. and R. G. Wetzel. 1985. Cryptophyte productivity and growth in a hardwater lake of Michigan using track autoradiography. Absts., 48th Annual Meeting, American Society of Limnology and Oceanography, Minneapolis, Minnesota, June 1985.
  97. Carlton, R. G. and R. G. Wetzel. 1985. Photosynthetic oxygen production by epipelic algae mediates sediment phosphorus release. Absts., 48th Annual Meeting, American Society of Limnology and Oceanography, Minneapolis, Minnesota, June 1985.
  98. Losee, R. F. and R. G. Wetzel. 1985. Effect of physical structure on periphyton light transmission. Absts., 48th Annual Meeting, American Society of Limnology and Oceanography, Minneapolis, Minnesota, June 1985.
  99. Coveney, M. F. and R. G. Wetzel. 1985. Algal vs non-algal sources of organic substrates for bacterioplankton. Absts., 48th Annual Meeting, American Society of Limnology and Oceanography, Minneapolis, Minnesota, June 1985.
  100. Burkholder, J. M. and R. G. Wetzel. 1985. Seasonal population dynamics of microalgae epiphytic on a natural substratum in a hardwater lake. Absts., Annual Meeting, Phycological Society of America, University of Florida, Gainesville, Florida.
  101. Carlton, R. G. and R. G. Wetzel. 1986. Photosynthetic oxygen production by epipelic algae causes diurnal fluctuations in phosphorus release from lake sediments. Absts., 50th Annual Meeting, American Society of Limnology and Oceanography, Kingston, Rhode Island, June 1986.
  102. Taylor, W. D. and R. G. Wetzel. 1986. Short-term changes of in situ cryptophyte growth rates over an annual period in an oligotrophic lake. Absts., 50th Annual Meeting, American Society of Limnology and Oceanography, Kingston, Rhode Island, June 1986.
  103. Burkholder, J. M., R. G. Wetzel, and K. L. Klomparens. 1986. A direct comparison of phosphorus uptake by adnate and loosely attached microalgae from intact epiphyte communities. Absts., 50th Annual Meeting, American Society of Limnology and Oceanography, Kingston, Rhode Island, June 1986.
  104. Coveney, M. F. and R. G. Wetzel. 1986. Seasonal and spatial patterns of bacterial secondary productivity in an oligotrophic lake. Absts., 50th Annual Meeting, American Society of Limnology and Oceanography, Kingston, Rhode Island, June 1986.
  105. Wetzel, R. G. 1986. Productivity and resiliency of freshwater wetlands. Absts., International Symposium on Freshwater Wetlands and Wildlife: Perspectives on Natural, Managed and Degraded Ecosystems. Charleston, South Carolina, March 1986.
  106. Moeller, R. E. and R. G. Wetzel. 1986. Assessing the limiting role of phosphorus in the littoral zone of a phosphorus-limited lake. Absts., 50th Annual Meeting, American Society of Limnology and Oceanography, Kingston, Rhode Island, June 1986.
  107. Carlton, R. G., and R. G. Wetzel. 1986. Nutrient transport from sediment in water: Use of microelectrodes and isotope tracers to define the roles of oxygen, pH, and epipelic algae. Absts., Winter Meetings, American Society of Limnology and Oceanography, San Francisco, California, December 1986.
  108. Coveney, M. F., and R. G. Wetzel. 1987. Bacterial metabolism of algal extracellular carbon. Absts., 23rd Congress of the International Association of Theoretical and Applied Limnology, Hamilton, New Zealand, February 1987.
  109. Wetzel, R. G. 1987. Groundwater and nutrient seepage fluxes through subaqueous sediments of a hardwater lake. Absts., 50th Annual Meeting, American Society of Limnology and Oceanography, Madison, Wisconsin, June 1987.
  110. Coveney, M. F., and R. G. Wetzel. 1987. Experimental evaluation of conversion factors in the 3H-thymidine assay for bacterial productivity. Absts., 50th Annual Meeting, American Society of Limnology and Oceanography, Madison, Wisconsin, June 1987.
  111. Burkholder, J. M., R. G. Wetzel, and K. L. Klomparens. 1987. SEM-autoradiography to assess uptake of radioisotopes by adnate epiphytes in their undisturbed microenvironment. Absts., 50th Annual Meeting, American Society of Limnology and Oceanography, Madison, Wisconsin, June 1987.
  112. Carlton, R. G., and R. G. Wetzel. 1987. Microelectrode studies of the distribution of oxygen and microbial respiration in sediments of Lake Superior. Absts., 30th Conference, International Association for Great Lakes Research, Ann Arbor, Michigan, May 1987.
  113. Carlton, R. G., and R. G. Wetzel. 1987. Applications of microelectrode technology in aquatic microbial ecology. Absts., 50th Annual Meeting, American Society of Limnology and Oceanography, Madison, Wisconsin, June 1987.
  114. Moeller, R. E., and R. G. Wetzel. 1987. Littoral vs. profundal components of sediment accumulation and their contrasting roles as phosphorus sinks. Absts., 23rd Congress, International Association of Theoretical and Applied Limnology, Hamilton, New Zealand, February 1987.
  115. Losee, R. F., and R. G. Wetzel. 1987. Water movement rates and patterns within littoral vegetation. Absts., 23rd Congress, International Association of Theoretical and Applied Limnology, Hamilton, New Zealand, February 1987.
  116. Losee, R. F., and R. G. Wetzel. 1988. Water movement rates within a submersed macrophyte bed. Winter Meeting, American Society of Limnology and Oceanography, New Orleans, Louisiana, January 1988.
  117. Cotner, J. B., Jr., and R. G. Wetzel. 1988. Orthophosphate inhibition of bacterial alkaline phosphatase activity. Absts., Annual Meeting, American Society of Limnology and Oceanography, Boulder, Colorado, June 1988.
  118. Wetzel, R. G. 1988. Longterm primary productivity of lake ecosystems: Ontogenetic effects of littoral organic accretions. Absts., Annual Meeting, American Society of Limnology and Oceanography, Boulder, Colorado, June 1988.
  119. Wetzel, R. G. 1988. Seasonal activities of carboxylation enzymes in submersed freshwater macrophytes. Absts., Annual Meeting, Ecological Society of America, Davis, California, August 1988.
  120. Wetzel, R. G. 1988. Detritus, macrophytes, and nutrient cycling in lakes. Absts., International Conference on Scientific Perspectives in Theoretical and Applied Limnology, Verbania Pallanza, Italy, September 1988.
  121. Wetzel, R. G. 1988. Limnologische Grundlagenforschung: Heutiger Stand und zukünftige Richtungen. Max-Planck-Gesellschaft für Limnologie, Plön, Holstein, Federal Republic of Germany, September 1988.
  122. Wetzel, R. G. 1989. Organic acids in aquatic ecosystems. Dahlem Konferenzen. Berlin, Federal Republic of Germany, May 1989.
  123. Wetzel, R. G. 1989. Aquatic Ecology: Changes, predictions, and projections. Proceedings New Jersey Academy of Sciences, April 1989.
  124. Kirk, K. L., and R. G. Wetzel. 1989. Processing of dissolved organic carbon by the macrophyte-epiphyte complex. Absts., Annual Meeting, American Society of Limnology and Oceanography, Fairbanks, Alaska, June 1989.
  125. Losee, R. F., and R. G. Wetzel. 1989. Submersed macrophyte-epiphyte complex boundary-layer development. Absts., Annual Meeting, American Society of Limnology and Oceanography, Fairbanks, Alaska, June 1989.
  126. Cotner, J. B., Jr., and R. G. Wetzel. 1989. Algal and bacterial utilization of dissolved organic phosphorus compounds. Absts., Annual Meeting, American Society of Limnology and Oceanography, Fairbanks, Alaska, June 1989.
  127. Wetzel, R. G. 1989. Exoenzymatic interactions in aquatic ecosystems: Soliloquy or interspecific communication? Absts., First International Workshop on Exoenzymes in Aquatic Ecosystems, Munich, Federal Republic of Germany, July 1989.
  128. Cotner, J. B., and R. G. Wetzel. 1989. Bacterial phosphatases: From oligotrophy to eutrophy. Absts., First International Workshop on Exoenzymes in Aquatic Ecosystems, Munich, Federal Republic of Germany, July 1989.
  129. Wetzel, R. G. 1989. Land-water interfaces: Metabolic and limnological regulators. Baldi Memorial Lecture, Absts., 24th Congress International Association of Theoretical and Applied Limnology, Munich, Federal Republic of Germany, August 1989.
  130. Wetzel, R. G. 1990. Extracellular enzyme activities in freshwater ecosystems. Absts., Annual Meetings, American Society of Limnology and Oceanography, Gloucester Point, Virginia, June 1990.
  131. Cotner, J. B., and R. G. Wetzel. 1990. Algal-bacterial competition for dissolved organic phosphorus compounds. Absts., Annual Meeting, American Society of Limnology and Oceanography, Gloucester Point, Virginia, June 1990.
  132. Spencer, W., and R. G. Wetzel. 1990. PEP carboxylase and respiratory activities in submersed aquatic angiosperms. Absts., Annual Meeting, American Society of Plant Physiologists, Indianapolis, Indiana, August 1990.
  133. Wetzel, R. G. 1990. Nutrient retention by wetlands. Great Lakes Program Newsletter, March 1990.
  134. Coveney, M. F. and R. G. Wetzel. 1990. Bacterioplankton growth dynamics in an oligotrophic lake. Absts., Annual Meeting American Society of Limnology and Oceanography, Gloucester Point, Virginia, June 1990.
  135. Wetzel, R. G. 1990. Gradient-dominated ecosystems: Sources and regulatory functions of dissolved organic matter in freshwater ecosystems. Absts., International Symposium on Dissolved Organic Matter in Lacustrine Ecosystems, Lammi, Finland, May 1990.
  136. Wetzel, R. G. 1990. Clean water: A fading resource. Absts., International Symposium on The Dynamics and Use of Lacustrine Ecosystems, Helsinki, Finland, August 1990.
  137. Wetzel, R. G. 1991. Wetlands: A need for functional initiatives. Absts., Annual Meetings, Society of Wetland Scientists, University of Michigan, Ann Arbor, Michigan, May 1991.
  138. Spencer, W. E., J. Teeri, and R. G. Wetzel. 1991. Phenotypic variation in photosynthetic pathway: Patterns in Hydrilla physiology within environmental gradients. Absts., Annual Meetings, Ecological Society of America, San Antonio, Texas, August 1991.
  139. Wetzel, R. G. 1991. Humic compounds from wetlands: Complexation, inactivation, transport, and reactivation of microbial extracellular enzymes. Absts., Annual Meetings, Ecological Society of America, San Antonio, Texas, August 1991.
  140. Spencer, W. E., J. A. Teeri, and R. G. Wetzel. 1991. Adaptive significance of the variable C3/C4 photosynthetic physiology in Hydrilla verticillata. Absts., Annual Meetings, Aquatic Plant Management Society, Detroit, Michigan, September 1991.
  141. Spencer, W. E. and R. G. Wetzel. 1991. The accumulation of phosphorus by Ceratophyllum demersum beneath the ice. Absts., Annual Meetings, Aquatic Plant Management Society, Detroit, Michigan, September 1991.
  142. Wetzel, R. G. 1991. Constructed wetlands: Scientific foundations are critical. Absts., International Symposium on Constructued Wetlands for Water Quality Improvement, Pensacola, Florida, October 1991.
  143. Wetzel, R. G. 1992. Storage and phased degradation of dissolved organic matter: An aquatic stabilizer. Absts., Annual Meetings, American Society of Limnology and Oceanography, Santa Fe, New Mexico, February 1992.
  144. Losee, R. L. and R. G. Wetzel. 1992. Submersed macrophyte-epiphyte hydrodynamic boundary layers. Absts., Annual Meetings, American Society of Limnology and Oceanography, Santa Fe, New Mexico, February 1992.
  145. Spencer, W. E., R. G. Wetzel, and J. A. Teeri. 1992. Ecological significance of C4-like photosynthesis in the submersed aquatic angiosperm Hydrilla verticillata. International Symposium on the Biology and Management of Aquatic Plants, Absts., 32nd Annual Meeting, Aquatic Plant Management Society, Daytona Beach, Florida, July 1992.
  146. Wetzel, R. G. 1992. Dissolved organic matter: A stabilizer of aquatic ecosystem metabolism. Absts., International Symposium on New Perspectives in Aquatic Ecosystem Research, Amsterdam, The Netherlands, May 1992.
  147. Wetzel, R. G. 1992. Humic compounds from wetlands: Complexation, inactivation, transport, and reactivation of microbial extracellular enzymes. Absts., 25th Congress, International Association of Theoretical and Applied Limnology, Barcelona, Spain, August 1992.
  148. Kim, B. and R. G. Wetzel. 1992. The effect of dissolved humic substances on the alkaline phosphatase and the growth of microalgae. Absts., 25th Congress, International Association of Theoretical and Applied Limnology, Barcelona, Spain, August 1992.
  149. Wetzel, R. G. 1992. Nutrient recycling: The key to biofilm productivity. Absts., International Symposium on Nutrient Recycling in Ecosystems, British Society of Microbiology, Dublin, Ireland, September 1992.
  150. Wetzel, R. G. 1993. Dissolved organic carbon from wetlands: Rates of decomposition, fluxes, and loss processes in recipient aquatic ecosystems. Absts., NIGEC Symposium on Global Change Research, Tuscaloosa, Alabama, April 1993.
  151. Wetzel, R. G. 1993. Future directions in research on controls of eutrophication. Absts., 5th International Conference on Lake Conservation, Stresa, Italy, May 1993.
  152. Wetzel, R. G. 1993. Longterm climate-related changes in lake heating, stratification, primary productivity, and loading of dissolved organic matter. Absts., Annual Meetings, North American Benthological Society, Calgary, Alberta, May 1993.
  153. Wetzel, R. G. 1993. Ultraviolet photolysis of dissolved organic compounds: Enhanced bacterial productivity on humic compounds and total dissolved organic carbon. Absts., Annual Meetings, American Society of Limnology and Oceanography, Edmonton, Alberta, June 1993.
  154. Lemke, M. J. and R. G. Wetzel. 1993. Interaction among extracellular enzymes and matrix components in aquatic bacteria. Absts., Annual Meetings, Ecological Society of America, Madison, Wisconsin, August 1993.
  155. Wetzel, R. G. 1993. Minorities and careers in aquatic sciences. Bull. Amer. Soc. Limnol. Oceanogr. 4:4-6.
  156. Wetzel, R. G. 1993. UV photolysis of dissolved organic compounds and alterations of bacterial productivity. Absts., Workshop on UV-B Radiation on Pelagic Freshwater Ecosystems, Lehigh University, Bethlehem, Pennsylvania, September 1993.
  157. Wetzel, R. G. 1993. Interactive roles of humic substances, extracellular enzymes, and UV irradiance in regulating phosphorus bioavailability in wetlands. Absts., Annual Meetings, Soil Science Society of America, Cincinnati, Ohio, November 1993.
  158. Kim, B. and R. G. Wetzel. 1993. The inhibition kinetics of algal alkaline phosphatase by dissolved humic substances from aquatic macrophytes. Absts., Annual Meetings, North American Lake Management Society, Seattle, Washington, December 1993.
  159. Freer, M. E., T. S. Bianchi, and R. G. Wetzel. 1993. Temporal and spatial variability in methane fluxes and production across the Sabine River floodplain of southeast Texas. Absts., Annual Meetings, Estuarine Research Federation, Charleston, South Carolina, December 1993.
  160. Ward, G. M., A. K. Ward, and R. G. Wetzel. 1994. Spatial and temporal patterns of surface water hydrology and dissolved organic carbon (DOC) in a small lotic wetland. Abstracts, Winter Meetings, American Society of Limnology and Oceanography, San Diego, California, February 1994.
  161. Lemke, M. J., P. F. Churchill, and R. G. Wetzel. 1994. The effect of substrate and cell surface hydrophobicity on phosphate uptake in wetland bacteria. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Miami, Florida, June 1994.
  162. Mann, C. J. and R. G. Wetzel. 1994. Dissolved organic carbon in a riverine wetland ecosystem. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Miami, Florida, June 1994.
  163. Wetzel, R. G. 1994. Nutrient regeneration in wetlands: Microbial-macrophyte mutualism. Abstracts, 3rd Symposium on Biogeochemistry of Wetlands, Orlando, Florida, June 1994.
  164. Neely, R. K. and R. G. Wetzel. 1994. Bacterial response to manipulation of algal photosynthesis in periphyton. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Miami, Florida, June 1994.
  165. Mann, C. J. and R. G. Wetzel. 1994. Loading and bacterial utilization of dissolved organic carbon from emergent macrophytes. Abstracts, Annual Meetings, Ecological Society of America, Knoxville, Tennessee, August 1994.
  166. Howe, M. J. and R. G. Wetzel. 1994. Population dynamics and seasonal growth and biomass patterns of an emergent rush (Juncus effusus L.) in a subtemperate Alabama wetland. Abstracts, Annual Meetings, Ecological Society of America, Knoxville, Tennessee, August 1994.
  167. Stock, M. S., R. G. Wetzel, and A. K. Ward. 1995. The effects of dissolved organic carbon on periphyton extracellular mucilage development. Abstracts, North American Benthological Society, Keystone, Colorado, May 1995.
  168. Wetzel, R. G. 1995. Water quality: Scientific foundations underlie effective water resource management. Absts., 3rd National Congress, Portuguese Biologists Association, Lisbon, Portugal, June 1995.
  169. Coveney, M. F. and R. G. Wetzel. 1995. Biomass, production, and specific growth rate of bacterioplankton and coupling to phytoplankton in an oligotrophic lake. Abstracts, Annual Meeting, American Society of Limnology and Oceanography, Reno, Nevada, June 1995.
  170. Roden, E. E. and R. G. Wetzel. 1995. Regulation of methane production in freshwater wetland sediments by competing anaerobic microbial processes. Abstracts, Annual Meeting, American Society of Limnology and Oceanography, Reno, Nevada, June 1995.
  171. Wetzel, R. G. and P. G. Hatcher. 1995. Natural UV-B photolysis of recalcitrant dissolved organic matter to simple substrates for rapid bacterial metabolism. Abstracts, Annual Meeting, American Society of Limnology and Oceanography, Reno, Nevada, June 1995.
  172. Lemke, M. J., P. Churchill, and R. G. Wetzel. 1995. Humic acid interaction with extracellular layers of wetland bacteria. Abstracts, 26th Congress, International Association of Theoretical and Applied Limnology, Sao Paulo, Brazil, July 1995.
  173. Wetzel, R. G. 1995. Ultraviolet irradiance: Natural photolysis of recalcitrant dissolved organic matter to simple substrates for rapid bacterial metabolism. Abstracts, 26th Congress, International Association of Theoretical and Applied Limnology, Sao Paulo, Brazil, July 1995.
  174. Roden, E. E. and R. G. Wetzel. 1995. Regulation of methane flux from freshwater wetland sediments by competing anaerobic microbial processes. Abstracts, 26th Congress, International Association of Theoretical and Applied Limnology, Sao Paulo, Brazil, July 1995.
  175. Bicudo, D. C., A. K. Ward, R. G. Wetzel, and M. S. Stock. 1995. Fluxes of dissolved organic carbon within attached aquatic microbiota. Abstracts, 26th Congress, International Association of Theoretical and Applied Limnology, Sao Paulo, Brazil, July 1995.
  176. Wetzel, R. G. 1995. Interdisciplinary analyses of biogeochemical controls of organic carbon fluxes in a subtemperate lotic wetland. Abstracts, Annual Meetings, Soil Science Society of America, St. Louis, Missouri, November 1995.
  177. Wetzel, R. G. 1996. Ultraviolet photolysis and bacterial utilization of recalcitrant dissolved organic compounds released from decomposing emergent macrophytes, Abstracts, 4th Symposium of Biogeochemistry of Wetlands, New Orleans, Louisiana, March 1996.
  178. Roden, E. E. and R. G. Wetzel. 1996. Fe(III) oxide regulation of methane production in freshwater wetland sediments. Abstracts, 4th Symposium of Biogeochemistry of Wetlands, New Orleans, Louisiana, March 1996.
  179. Wetzel, R. G. and M. Søndergaard. 1996. Microbial community and dissolved carbon dynamics. Abstracts, International Symposium on The Role of Submersed Macrophytes in Structuring the Biological Community and Biogeochemical Dynamics in Lakes, Silkeborg, Denmark, June 1996.
  180. Wetzel, R. G. 1996. Concordance of phosphorus limitation in lakes: Bacterioplankton, phytoplankton, epiphytes, and rooted macrophytes. Abstracts, International Symposium on the Role of Submersed Macrophytes in Structuring the Biological Community and Biogeochemical Dynamics in Lakes, Silkeborg, Denmark, June 1996.
  181. Wetzel, R. G. Decomposition-induced changes in simple organic substrates released by ultraviolet photolysis from recalcitrant dissolved organic matter of degrading aquatic macrophytes. Abstracts, Annual Meeting, North American Benthological Society, Kalispell, Montana, June 1996.
  182. Mann, C. J. and R. G. Wetzel. 1996. Microhydrology in wetland sediments. Abstracts, Annual Meeting, American Society of Limnology and Oceanography, Milwaukee, Wisconsin, June 1996.
  183. Wetzel, R. G. 1996. Graduate education and training in aquatic ecosystem sciences. Invited paper, National Convocation on Doctoral Science and Engineering Education, National Academy of Sciences, Washington, DC, June 1996.
  184. Wetzel, R. G. and P. G. Hatcher. 1996. Natural photolysis of UV-B of lignin-based dissolved organic matter to readily degradable fatty acids. Abstracts, Annual Meetings, American Chemical Society, Orlando, Florida, August 1996.
  185. Wetzel, R. G. 1996. Coupling atmospheric ozone depletion to bacterial productivity of fresh waters. Limnological Workshop, 50 Years of Limnology, Uppsala University, Uppsala, Sweden, October 1996.
  186. Wetzel, R. G. 1996. Needs in future limnological research. Limnological Workshop, 50 Years of Limnology, Uppsala University, Uppsala, Sweden, October 1996.
  187. Wetzel, R. G. 1996. Coupling atmospheric ozone depletion to nutrient cycling and productivity of fresh waters. Abstracts, Royal Irish Academy Proceedings, Dublin, Ireland, November 1996.
  188. Wetzel, R. G. 1997. Long-term changes in the efficacy of natural photodegradation by UV-B of dissolved organic matter of different lignin-based sources to readily degradable fatty acids. Abstracts, Annual Meeting, American Society of Limnology and Oceanography, Santa Fe, New Mexico, February 1997.
  189. Roden, E. E. and R. G. Wetzel. 1997. Iron oxide suppression of methane production in freshwater wetland sediments. Abstracts, Annual Meeting, American Society of Limnology and Oceanography, Santa Fe, New Mexico, February 1997.
  190. Mann, C. J. and R. G. Wetzel. 1997. Subsurface water flow patterns in a wetland ecosystem. Abstracts, Annual Meeting, American Society of Limnology and Oceanography, Santa Fe, New Mexico, February 1997.
  191. Kahn, W. and R. G. Wetzel. 1997. Effects of UV irradiance and microscale water level fluctuations on periphytic microbiota. Abstracts, Annual Meeting, American Society of Limnology and Oceanography, Santa Fe, New Mexico, February 1997.
  192. Wetzel, R. G. 1997. Research priorities in freshwater ecology and global societal needs. Abstracts, 100 Years of Freshwater Biology: Present and Future Research, University of Copenhagen, Copenhagen, Denmark, May 1997.
  193. Kahn, W. E. and R. G. Wetzel. 1997. Effects of UV irradiance and microscale water level fluctuations on periphytic microbiota. Abstracts, Annual Meetings of the Association of Southeastern Biologists, Greenville, South Carolina, April 1997.
  194. Kuehn, K. A., M. J. Lemke, K. Suberkropp, and R. G. Wetzel. 1997. Microbial biomass and production associated with submerged leaf litter of the emergent macrophyte Juncus effusus. Abstracts, Annual Meeting, North American Benthological Society, San Marcos, Texas, May 1997.
  195. Wetzel, R. G. 1997. Atmospheric ozone reduction: Couplings to nutrient cycling and productivity in fresh waters. Abstracts, Annual Meeting, Deutsche Gesellschaft Limnologie, Frankfurt, Germany, September 1997.
  196. Wetzel, R. G. 1997. Limnological leadership and responsibility. Annual Meeting, Deutsche Gesellschaft Limnologie, Frankfurt, Germany, September 1997.
  197. Boavida, M. J. and R. G. Wetzel. 1997. Efficacy of phosphatase activity in freshwater ecosystems: Inhibition by dissolved humic substances and UV reactivation. Abstracts, International Symposium on Phosphatases in Natural Ecosystems, London, England, September 1997.
  198. Wetzel, R. G. 1997. Plants and water in and adjacent to lakes. Abstracts, British Ecological Society, Sheffield, England, October 1997.
  199. Ervin, G. N. and R. G. Wetzel. 1998. Shoot:root dynamics during growth stages of the rush Juncus effusus. Abstracts, Annual Meeting, Ecological Society of America, St. Louis, June 1998.
  200. Wetzel, R. G. 1998. The functional three-dimensionality of littoral ecosystems. Abstracts, Annual Meeting, Ecological Society of America, St. Louis, June 1998.
  201. Mann, C. J. and R. G. Wetzel. 1998. Photosynthesis and stomatal conductance of Juncus effusus L. in a subtemperate wetland ecosystem. Abstracts, Annual Meeting. American Society of Limnology and Oceanography, St. Louis, June 1998.
  202. Engelhaupt, E. D., T. S. Bianchi, M. Tarr, and R. G. Wetzel. 1998. Effects of ultraviolet radiation on the composition and microbial utilization of dissolved organic carbon (DOC) in Bayou Trepagnier, Louisiana. Abstracts, Annual Meeting. American Society of Limnology and Oceanography, St. Louis, June 1998.
  203. Kuehn, K. A., M. O. Gessner, R. G. Wetzel and K. Suberkropp. 1998. Standing litter decomposition of the emergent macrophyte Setaria magna (giant fox-tail). Abstracts, 27th Congress, International Association of Theoretical and Applied Limnology, Dublin, August 1998.
  204. Wetzel, R. G. 1998. Natural photodegradation by UV-B of dissolved organic matter of different plant sources to readily degradable fatty acids. Abstracts, 27th Congress, International Association of Theoretical and Applied Limnology, Dublin, August 1998.
  205. Kuehn, K. A., M. O. Gessner, R. G. Wetzel, and K. Suberkropp. 1998. Standing litter decomposition of the emergent macrophyte Erianthus giganteus. Abstracts, European Reed Conference, Geobotanisches Institut ETH, Zürich, Switzerland, October 1998.
  206. Ervin, G. N. and R. G. Wetzel. 1998. Allelochemical autotoxicity in the freshwater rush Juncus effusus L. Abstracts, Wetlands Society of America, South Central Chapter, Memphis, Tennessee, October 1998.
  207. Francoeur, S. N., E. M. Espeland, and R. G. Wetzel. 1999. Molecular flux in periphyton communities: Coupling structure to function. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Santa Fe, New Mexico, February 1999.
  208. Wetzel, R. G., S. N. Francoeur, and E. M. Espeland. 1999. Microscale architecture of periphyton communities. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Santa Fe, New Mexico, February 1999.
  209. Espeland, E. M., S. N. Francoeur, and R. G. Wetzel. 1999. Determination of alkaline phosphatase profiles within heterotrophic/autotrophic biofilms. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Santa Fe, New Mexico, February 1999.
  210. Wetzel, R. G. 1999. Essential commitments to international limnology. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Santa Fe, New Mexico, February 1999.
  211. Engelhaupt, E., T. Bianchi, R. G. Wetzel, and M. Tarr. 1999. Effects of UV radiation on the composition and microbial utilization of dissolved organic carbon (DOC) in Bayou Trepagnier, LA, USA. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Santa Fe, New Mexico, February 1999.
  212. Tuchman, N. C., K. A. Wahtera, and R. G. Wetzel. 1999. Elevated atmospheric CO2-induced changes in leaf litter chemistry: Effects on aquatic microbial activity and detritivore growth. Abstracts, Annual Meeting, North American Benthological Society, Duluth, Minnesota, May 1999.
  213. Ervin, G. N. and R. G. Wetzel. 1999. Inter- and intraspecific allelochemical effects of Juncus effusus along a continuum of plant growth stages. Abstracts, Annual Meeting, Society of Wetland Scientists, Norfolk, Virginia, June 1999.
  214. Ervin, G. N. and R. G. Wetzel. 1999. Effects of stratification and sterilization on seeds of the freshwater rush Juncus effusus. Abstracts, Annual Meeting, Society of Wetland Scientists, Lafayette, Louisiana, November 1999.
  215. Ervin, G. N. and R. G. Wetzel. 2000. Effects of shading by Juncus effusus on wetland plant community composition. Abstracts, British Ecological Society/Ecological Society America Meetings, Orlando, Florida, March 2000.
  216. Wetzel, R. G. 2000. Origins, fates, and ramifications of natural organic compounds of wetlands. Abstracts, International Symposium on Chemical Ecology and Natural Products of Wetlands. National Center for Natural Products Research, University of Mississippi, Oxford, Mississippi, May 2000.
  217. Wetzel, R. G. 2000. Freshwater and wetland ecology: Challenges and future frontiers. Abstracts, International Symposium on Sustainability of Wetlands and Water Resources, University of Mississippi, Oxford, Mississippi, May 2000.
  218. Wahtera, K. A., N. C. Tuchman, and R. G. Wetzel. 2000. Elevated atmospheric CO2-induced changes in leaf litter chemistry: Effects on in situ aquatic microbial activity and leaf decomposition rates. Abstracts, Annual Meeting, North American Benthological Society, Keystone, Colorado, May 2000.
  219. Wetzel, R. G. 2000. A synthesis: Integrating approaches to microbial-dissolved organic carbon trophic linkages. Abstracts, International Workshop on DOC-Trophic Interactions. Institute for Ecosystem Studies, Millbrook, New York, May 2000.
  220. Wetzel, R. G. 2000. Detrital bowls, not algal bowls: Coupling of allochthonous organic matter to heterotrophic energetic fluxes and regulation of freshwater ecosystems. Abstracts, Annual Meeting, American Society of Limnology and Oceanography, Copenhagen, Denmark, June 2000.
  221. Wetzel, R. G. 2000. Origins and fates of natural organic compounds in natural waters: Importance of photodegradation. Abstracts, 2nd International Symposium on Refractory Organic Substances in the Environment, Universität Karlsruhe, Karlsruhe, Germany, August 2000.
  222. Wetzel, R. G. 2000. Sources, fates, and consequences of natural organic compounds of wetlands. Abstracts, Special Session, Global Wetlands and Greenhouse Gases, INTECOL VI International Wetland Conference, Québec City, Québec, Canada, August 2000.
  223. Wetzel, R. G. 2000. Fundamental processes within natural and constructed wetland ecosystems: Short-term vs. long-term objectives. Abstracts, 7th Conference on Wetland Systems for Water Pollution Control. Orlando, Florida, November 2000.
  224. Wetzel, R. G. and N. C. Tuchman. 2001. Effects of CO2 enrichment on the production of humic degradation products, their natural photodegradation, and biological utilization. Absts., 28th Congress of the International Association of Theoretical and Applied Limnology, Melbourne, Australia, February 2001.
  225. Tietjen, T. E. and R. G. Wetzel. 2001. Effects of suspended clay particles in the distribution of dissolved organic carbon. Absts., Annual Meetings, American Society of Limnology and Oceanography, Albuquerque, New Mexico, February, 2001.
  226. Espeland, E. M. and R. G. Wetzel. 2001. Bacterial phosphatase in biofilms: A comparison of enzyme activity and individual phosphatase expression. Absts., Annual Meetings, American Society of Limnology and Oceanography, Albuquerque, New Mexico, February 2001.
  227. Francoeur, S. N. and R. G. Wetzel. 2001. Experimental investigation of the regulation of periphytic extracellular leucine-aminopeptidase activity. Absts., Annual Meetings, American Society of Limnology and Oceanography, Albuquerque, New Mexico, February 2001.
  228. Rier, S. T., N. C. Tuchman, and R. G. Wetzel. 2001. Microbial responses to changes in leaf litter nutritional quality induced by leaf growth under elevated atmospheric CO2. Abstracts, Annual Meetings, North American Benthological Society, Aspen, Colorado, June 2001.
  229. Wetzel, R. G. and N. C. Tuchman. 2001. Effects of CO2 enrichment on the production of degradation products of Typha latifolia and their natural photodegradation and biological utilization. Absts., Annual Meetings, Ecological Society of America. Madison, Wisconsin, August 2001.
  230. Francoeur, S. N. and R. G. Wetzel. 2001. Experimental investigation of the regulation of periphytic extracellular leucine-aminopeptidase activity. Abstracts, Annual Meeting, New Zealonad Hydrological and New Zealand Limnological Society, Chrischurch, New Zealand, November 2001.
  231. Tietjen, T. E. and R. G. Wetzel. 2001. Spatial variations in the distribution of bacteria in a turbid southeaster (USA) reservoir. Abstracts, Annual Meetings, North American Lake Management Society, Chicago, Illinois, November 2001.
  232. Vähätalo, A. V. and R. G. Wetzel. 2002. Photochemical decomposition of chromophoric dissolved organic matter in surface water. Abstracts, American Geophysical Union Ocean Sciences, Honolulu, Hawaii, February 2002. (2002. Eos. Trans. AGU 83(4), Ocean Sciences Meet. Suppl., Abstract OS31B-17).
  233. Vähätalo, A. V. and R. G. Wetzel. 2002. Photochemical decomposition of chromophoric dissolved organic matter in surface water: Spectral dependence and environmental rates. Abstracts, Environmental Chemistry Division, 223rd National Meeting, American Chemical Society, Orlando, Florida, April 2002. Extended ACS Abstracts 42(1)543-546.
  234. Wetzel, R. G. 2002. Widening dichotomies in education of aquatic ecology and management. Invited Lecture, Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Victoria, British Columbia, June 2002.
  235. Vähätalo, A. V., K. Salonen, U. Münster, M. Järvinen, and R. G. Wetzel. 2002. Photochemical transformation of dissolved organic matter provides bioavailable nutrients in a humic lake. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Victoria, British Columbia, June 2002.
  236. Wetzel, R. G. and N. C. Tuchman. 2002. Solar radiation as thesimultaneous autotrophic and heterotrophic modulator of aquatic ecosystems. Invited Lecture, Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Victoria, British Columbia, June 2002.
  237. Tietjen, T. E. and R. G. Wetzel. 2002. Spatial variations in the distribution of bacteria in a turbid southeastern (USA) reservoir. Abstracts, Annual Meetings, North American Benthological Society, Madison, Wisconsin, June 2002.
  238. Tuchman, N. C., B. Swedo, S. Abichandani, S. T. Rier, and R. G. Wetzel. 2002. Elevated atmospheric CO2 alters leaf litter nutritional quality: Impacts on three trophic levels in detritus-based aquatic food webs. Abstracts, Annual Meetings, North American Benthological Society, Madison, Wisconsin, June 2002.
  239. Tietjen, T. E. and R. G. Wetzel. 2003. Extracellular enzyme-clay mineral complexes: Enzyme adsorption, alteration of enzyme activity, and protection from photodegradation. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Salt Lake City, Utah, February 2003.
  240. Wetzel, R. G. 2003. Allochthonous organic matter, solar radiation, and protists: Interdependent fulcra of lake and river metabolism. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Salt Lake City, Utah, February 2003.
  241. Vähätalo, A. V., L. E. Band, and R. G. Wetzel. 2003. Photochemical reactivity, decomposition, and transport of CDOM in the drainage basin of the Neuse River, North Carolina. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Salt Lake City, Utah, February 2003.
  242. Rier, S. T., N. C. Tuchman, and R. G. Wetzel. 2003. Influence of elevated atmospheric CO2 on the chemistry and in situ decomposition of leaf litter from three common riparian tree species in Northern Michigan. Abstracts, Annual Meetings, North American Benthological Society, Athens, Georgia, May, 2003.
  243. Kominoski, J. S., N. C. Tuchman, P. A. Moore, C. G. Peterson, and R. G. Wetzel. 2003. DOC derived from elevated CO2-altered leaf litter: Impacts on stream periphyton growth and community structure. Abstracts, Annual Meetings, North American Benthological Society, Athens, Georgia, May, 2003.
  244. Wetzel, R. G. and N. C. Tuchman. 2003. Photolytic alteration of dissolved organic matter leached from wetland plants. Abstracts, Annual Meeting, Society of Wetland Scientists, New Orleans, Louisiana, June 2003.
  245. Wetzel, R. G. and N. C. Tuchman. 2004. Interactions of atmospheric CO2 enrichment and light on chemical composition of wetland plants and their decomposition. Abstracts, International Wetlands Conference, International Association of Ecology, Utrecht, Netherlands, July 2004.
  246. Wetzel, R. G. 2004. Interactions of atmospheric CO2 enrichment and light on the chemical composition of plant organic matter and decomposition of humic leachates. Abstracts, Humic Substances Seminar VII, Northeastern University, Boston, Massachusetts, March 2004.
  247. Leech, D. M. and R. G. Wetzel. 2004. Indirect effects of elevated CO2 and UV on energy transfer within the microbial loop. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Savannah, Georgia, June 2004.
  248. Tuchman, N. C., S. T. Rier, and R. G. Wetzel. 2004. Elevated atmospheric CO2 alters leaf litter nutritional quality: Effects on three trophic levels in streams. Abstracts, Annual Meeting, North American Benthological Society, Vancouver, British Columbia, June 2004.
  249. Wetzel, R. G. 2004. Organic phosphorus compounds: Modulators of phosphorus cycling and fluxes to and in aquatic ecosystems. Invited Plenary Lecture. Abstracts, Annual Meetings, American Society of Limnology and Oceanography, Savannah, Georgia, June 2004.
  250. Wetzel, R. G. 2004. Transudation of elevated atmospheric CO2 and natural UV light through altered carbon fluxes and higher trophic level production in aquatic ecosystems. Abstracts, 29th Congress, International Association of Theoretical and Applied Limnology, Lahti, Finland, August 2004.


Dissertations Under the Direction of Robert G. Wetzel

  1. Allen, H. L. 1967. Chemo-organotrophic utilization of dissolved organic compounds by planktic algae and bacteria in a pond. [M.Sc. Dissertation, Michigan State University]
  2. Allen, H. L. 1969. Primary productivity, chemo-organotrophy, and nutritional interactions of epiphytic algae and bacteria on macrophytes in the littoral of a lake. [Ph.D. Dissertation, Michigan State University]
  3. Rich, P. H. 1970. Utilization of benthic detritus in a marl lake. [Ph.D. Dissertation, Michigan State University]
  4. Manny, B. A. 1971. Interactions of dissolved and particulate nitrogen in lake metabolism. [Ph.D. Dissertation, Michigan State University]
  5. Miller, M. C. 1972. The carbon cycle in the epilimnion of two Michigan lakes. [Ph.D. Dissertation, Michigan State University]
  6. Hough, R. A. 1973. Photorespiration and release of organic carbon in submersed aquatic vascular plants. [Ph.D. Dissertation, Michigan State University]
  7. Ward, A. K. 1974. Sodium: A factor in growth of blue-green algae. [M.Sc. Dissertation, Michigan State University]
  8. White, W. S. 1974. Role of calcium carbonate precipitation in lake metabolism. [Ph.D. Dissertation, Michigan State University] student1.jpg
  9. McKinley, K. R. 1975. Investigations on the role of dissolved organic matter in determining ecosystem structure and function: The plankton and photoheterotrophy. [Ph.D. Dissertation, Michigan State University]
  10. Cunningham, H. W. 1977. Adenosine triphosphate concentration in relation to microbial biomass in aquatic systems. [M.Sc. Dissertation, Michigan State University]
  11. Godshalk, G. L. 1977. Decomposition of aquatic plants in lakes. [Ph.D. Dissertation, Michigan State University]
  12. Ward, A. K. 1978. Interactions of carbon and nitrogen metabolism with changing light intensity in natural populations and cultures of planktonic blue-green algae. [Ph.D. Dissertation, Michigan State University]
  13. Weaver, C. I. 1979. Occurrence of carbonic anhydrase in aquatic macrophytes and internal lacunal CO2 concentrations. [M.Sc. Dissertation, Michigan State University]
  14. Francko, D. A. 1980. An investigation on the occurrence and significance of cyclic adenosine 3':5'-monophosphate in phytoplankton and natural aquatic communities. [Ph.D. Dissertation, Michigan State University]
  15. Grace, J. B. 1980. Phenotypic and genotypic components of growth and reproduction in Typha latifolia: Experimental studies in three contrasting marshes. [Ph.D. Dissertation, Michigan State University]
  16. Crumpton, W. G. 1980. Differential effects of growth and loss processes in controlling natural phytoplankton populations. [Ph.D. Dissertation, Michigan State University]
  17. Stewart, A. J. 1980. Littoral-pelagial interactions: The role of dissolved humic materials. [Ph.D. Dissertation, Michigan State University]
  18. Dickerman, J. A. 1982. The pattern and process of clonal growth in a common cattail (Typha latifolia L.) population. [Ph.D. Dissertation, Michigan State University]
  19. Losee, R. L. 1983. Characterization of selective light attenuation by periphyton. [M.Sc. Dissertation, Michigan State University]
  20. Burkholder, J. M. 1986. Seasonal dynamics, alkaline phosphatase activity and phosphate uptake of adnate and loosely attached epiphytes in an oligotrophic lake. [Ph.D. dissertation, Michigan State University]
  21. Carlton, R. G. 1986. Oxygen dynamics in periphyton communities and associated effects on phosphorus release from lake sediments. [Ph.D. Dissertation, Michigan State University]
  22. Taylor, W. D. 1988. Ecology of the Cryptophyceae in a north temperate hardwater lake. [Ph.D. Dissertation, Michigan State University]
  23. Cotner, J. B., Jr. 1990. Utilization of dissolved phosphorus compounds by bacteria and algae in lakes. [Ph.D. Dissertation, University of Michigan]
  24. Carrick, H. J., Jr. 1990. Planktonic protozoa in Lake Michigan: Distribution, production, and fate. [Ph.D., Dissertation, University of Michigan]
  25. Losee, R. F. 1991. Water movements within and around submersed aquatic macrophytes. [Ph.D. Dissertation, Michigan State University]
  26. Hendricks, S. 1992. Longitudinal physicochemical and biological patterns near the groundwater-surface water interface (hyporheic zone) within a sandy-bed, third-order stream. [Ph.D. Dissertation, University of Michigan]
  27. Spencer, W. E. 1992. Ecological significance of C4-like photosynthesis in a non-C4 submersed aquatic angiosperm. [Ph.D. Dissertation, University of Michigan]
  28. Mann, C. J. 1995. Dissolved organic matter: Plant leachates, surface and groundwater inputs to a wetland. [M.Sc. Dissertation, University of Alabama].
  29. Kahn, W. 1997. Effects of ultraviolet radiation and microscale water level fluctuations on periphytic microbiota. [M.Sc. Dissertation, University of Alabama].
  30. Mann, C. J. 1998. Transport and utilization of dissolved organic matter in a lotic wetland ecosystem. [Ph.D. Dissertation, University of Alabama].
  31. Ervin, G. 2000. Competition ecology of the dominant wetland macrophyte, Juncus effusus. [Ph.D. Dissertation, University of Alabama].
  32. Espeland, E. M. 2001. Bacterial production and enzyme activity within attached microbial communities. [Ph.D. Dissertation, University of Alabama].
  33. Francoeur, S. N. 2001. Protease activity in periphyton. [Ph.D. Dissertation, University of Alabama]. Gogolin, K. 2002. Effects of salinity gradients on development and growth of Phragmites australis [M.Sc. Thesis, University of Alabama].
  34. Tietjen, T. E. 2002. Interactions of dissolved organic matter and clay in reservoirs. [Ph.D. Dissertation, University of Alabama].
  35. Patrick, A. 2003. Photolytic degradation of dissolved organic matter released from decaying aquatic macorphytes. [M.Sc. Thesis, University of North Carolina]
  36. Kwak, M.-K. 2004. Photolytic degradation of dissolved organic phosphorus compounds in aquatic ecosystems. [M.Sc. Thesis, University of North Carolina]
  37. Riggsbee, A. 2004. Dam removal and river restoration. [Ph.D. Dissertation, University of North Carolina]
  38. McMillan, S. 2004. Nitrogen loading variability with land use. [Ph.D. Dissertation, University of North Carolina]
  39. Waters, M. N. 2005. Transformations of dissolved humic substances by light in aquatic ecosystems. [Ph.D. Dissertation, University of North Carolina]


Post-doctoral Tenures in Association with Research Programs of Robert G. Wetzel

  1. Dr. B. A. Manny (1971-1973). Currently Nearshore Leader, Great Lakes Fishery Laboratory, U.S. Department of Interior, Ann Arbor, Michigan.
  2. Dr. A. Otsuki (1971-1973). Currently Chief,
    Environmental Control Division, National Institute for Environment, Yatabe, Japan.
  3. Dr. R. A. Hough (1973-1975). Currently Professor, Department of Biology, Wayne State University, Detroit, Michigan.
  4. Dr. K. R. McKinley (1975-1976). Professor, Natural Energy Institute, University of Hawaii, Honolulu, Hawaii. (Deceased 1995)
  5. Dr. A. M. Mickle (1977-1978; 1981; 1984). Currently Professor, Department of Biology, LaSalle College, Philadelphia, Pennsylvania.
  6. Dr. S. F. Mitchell (1979). Currently Professor, Department of Zoology, University of Otago, Dunedin, New Zealand. (Deceased 2001)
  7. Dr. J. B. Grace (1981). Currently, Senior Research Scientist, National Wetlands Center, U. S. Geological Survey, Layafatte, Louisiana.
  8. Dr. D. A. Francko (1980-1981). Currently Professor, Department of Botany, Miami University, Oxford, Ohio.
  9. Dr. M. Søndergaard (1980). Currently Professor, University of Copenhagen, Hillerød, Denmark. student2WAlabamarev.jpg
  10. Dr. P. A. Penhale (1979-1980). Currently Director, Polar Programs, National Science Foundation, Washington, D.C.
  11. Dr. G. L. Godshalk (1982; 1983). Currently Professor, Department of Biology, Alfred University, Alfred, New York.
  12. Dr. J. B. Glime (1982). Currently Professor, Department of Biological Sciences, Michigan Technological University, Houghton, Michigan.
  13. Dr. P. J. M. Sale (1981). Currently Director, Aquatic Plant Management Division, CISRO, Griffith, Australia.
  14. Dr. S. Beer (1978; 1982). Currently Professor, Department of Botany, University of Tel Aviv, Israel.
  15. Dr. J. Boon (1980; 1982). Currently Research Associate, FOM Institute of Physics and Molecular Biology, Amsterdam, Netherlands.
  16. Dr. E. S. Brammer (1983). Currently Research Scientist, Institute of Limnology, University of Uppsala, Uppsala, Sweden.
  17. Dr. R. E. Moeller (1980-1984). Currently Research Associate, Department of Biological Sciences, Lehigh University, Bethlehem, Pennsylvania.
  18. Dr. H. H. Riber (1984). Currently Research Scientist, Department of Botany, University of Aarhus, Denmark.
  19. Dr. M. F. Coveney (1982-1988). Currently Research Scientist, State of Florida, Gainesville, Florida.
  20. Dr. K. L. Kirk (1988-1989). Currently Associate Professor, Biological Sciences, University of Northern New Mexico, New Mexico.
  21. Dr. B. Kim (1991-1992). Currently Professor, Department of Environmental Science, Kangweon National University, Chunchon, Korea.
  22. Dr. M. Lemke (1992 - 1995). Currently Associate Professor, Department of Biological Sciences, University of Southern Missouri, Missouri.
  23. Dr. R. Neely (1993). Currently Professor, Department of Biology, Eastern Michigan University, Ypsilanti, Michigan.
  24. Dr. M. Stock (1993 - 1994). Research Associate, Department of Biological Sciences, University of Alabama, Tuscaloosa, Alabama.
  25. Dra. D. Bicudo (1994). Currently Associate Professor of Botany, Instituto de Botanica, Sao Paulo, Brazil.
  26. Dr. C. Bicudo (1994). Currently Professor and Director, Instituto de Botanica, Sao Paulo, Brazil.
  27. Dr. M. J. Boavida (1997). Currently Professor, Departamento de Zoologia e Antropologia, Universidade de Lisboa, Lisboa, Portugal.
  28. Dr. R. Stross (1997). Currently Emeritus Associate Professor, Department of Biological Sciences, State University of New York, Albany, New York.
  29. Dr. H. Pizarro (2000). Currently Assistant Professor, Departamento de Ciencias Biológicas, Universidad de Buenos Aires, Buenos Aires, Argentina.
  30. Dr. A. Vähätalo (2000-2002). Currently Research Associate, Photochemical Laboratories, U. S. Environmental Protection Agency, Athens, Georgia.
  31. Dr. D. Leech (2003-2005) Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, North Carolina.



Awards & Important Personalities                                  Soil & Water Conservation Society of Metro Halifax Master Homepage


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