Information for LLO web page Oct 2007 Robert Hecky Department of Biology and Large Lakes Observatory University of Minnesota, Duluth 2205 5th St., Duluth, Minnesota, USA 55812-2401 Phone 218 726 7926 Fax 218 726 6979 Email rehecky@d.umn.edu Education Ph.D. B.Sc. Zoology Biology Duke University Kent State University 1971 1966 Research Interests Nutrient and carbon cycling in aquatic systems; limnology and paleolimnology of the African Great Lakes; phytoplankton-nutrient interactions; nutrient biogeochemistry; stable isotope applications to ecology, Hg and organochlorine contamination of food webs Courses taught Biology 5861 Recent Publications: 175 total (including 75 on African lakes) Complete list available upon request. Some recent publications below: 1. Verburg,P. and R.E. Hecky. 2003. Wind patterns, evaporation, and related physical variables in Lake Tanganyika, East Africa.. Journal of Great Lakes Research 29(2):48-61. 2. Kidd, K.A., H.A. Bootsma, R.E. Hecky, and R.H. Hesslein. 2003. Mercury concentrations in the food web of Lake Malawi, East Africa. Journal of Great Lakes Research 29(2):258-266. 3. Lindenschmidt, K.-E., G. Ollesch, M. Rode, A.S. Kerzhentsev, and R.E. Hecky. 2003. A comparative study of substance transport behavior in two Ugandan and one Russian catchment areas. Journal of Great Lakes Research 29(2):159-168. 4. Mugidde, R., R.E. Hecky, L. Hendzel and W.D. Taylor. 2003. Pelagic nitrogen fixation in Lake Victoria, Uganda. Journal of Great Lakes Research 29(2):76-88. 5. Ramlal, P.S., R.E. Hecky, H.A. Bootsma, S.L. Schiff, and M.J. Kingdon. 2003. Transport and turnover of dissolved organic matter in Lake Malawi. Journal of Great Lakes Research 29(2): 107-120. 6. Guildford, S.J., R.E. Hecky, W.D. Taylor, R. Mugidde, and H.A. Bootsma. 2003. Nutrient enrichment experiments in tropical Great Lakes Malawi/Nyasa and Victoria. Journal of Great Lakes Research 29(2):89-106. 7. Hecky, R.E. 2003. What does the future hold for the Great Lakes of Africa. African Journal of Aquatic Science 28(1): iii-vi (Invited Guest editorial). 8. Halafo, J., R.E. Hecky and W.D. Taylor. 2004. The artisanal fishery of Lake Malawi/Niassa, East Africa. African Journal of Aquatic Science 29 (1): 83-89. 9. Campbell, L.M., J. S. Balirwa, D. G. Dixon and R. E. Hecky. 2004. Biomagnification of mercury in fish from Thruston Bay, Napoleon Gulf, Lake Victoria (East Africa). African Journal of Aquatic Science 29(1): 91-96. 10. Hecky, R.E., R.E.H. Smith, D.R. Barton, S.J. Guildford, W.D. Taylor, M.N. Charlton, T. Howell. 2004. The near shore phosphorus shunt: a consequence of ecosystem engineering by dreissenids in the Laurentian Great Lakes. Can. J. Fish. Aquat. Sci. 61:1285-1293 11. Tamatamah, R.L., H.C. Duthie and R.E. Hecky. 2005. The importance of atmospheric deposition to the phosphorus loading of Lake Victoria. (East Africa). Biogeochemistry 73:325-344. 12. Vollmer, Martin K., Harvey A. Bootsma, Robert E. Hecky, Graeme Patterson, John D. Halfman, John M. Edmond, David H. Eccles, Ray F. Weiss. 2005. Deepwater warming trend in Lake Malawi, East Africa. Limnol. Oceanogr. 50:727732. 13. Gikuma-Njuru, P. and R.E. Hecky 2005. Nutrient Concentrations in Nyanza Gulf, Lake Victoria, Kenya: Light limits Algal Demand and Abundance. Hydrobiologia 534:131-140. 14. Williams, A.E., H.C. Duthie and R.E. Hecky. 2005. Water hyacinth in Lake Victoria: Why did it vanish so quickly and will it return. Aquatic Botany 81:300314. 15. Higgins, S.N., E.T. Howell, R.E. Hecky, S.J. Guildford and R.E.H. Smith. 2005. The wall of green: The status of Cladophora glomerata on the northern shores of Lake’s eastern basin, 1995-2002. J. Great Lakes Res. 31:547-563. 16. Higgins, S.N., R.E. Hecky and S.J. Guildford. 2005. Modeling the growth, biomass, and tissue phosphorus concentration of Cladophora glomerata in eastern Lake Erie: Model description and field testing. J. Great Lakes Res. 31:439-455. 17. Campbell, L.M., S.B. Wandera, R. Thacker, G.D. Dixon and R.E. Hecky. 2005. Trophic niche segregation in the Nilotic icthyofauna of Lake Albert (Uganda, Africa). Environmental Biology of Fishes 74:247-260. 18. Davies, J.M. and R.E. Hecky. 2005. Initial measurements of benthic photosynthesis in Lake Erie: Community, spatial and temporal variability. J. Great Lakes. Res. 31(suppl. 2): in press 19. Luis F. León, Jörg Imberger, Ralph E.H. Smith, Robert E. Hecky, David C.L. Lam and William M. Schertzer. 2005. Modeling as a Tool for Nutrient Management in Lake Erie: a Hydrodynamics Study. J. Great Lakes Res. 31 (suppl. 2): 309-318. 20. Guildford, S.J., R.E. Hecky, R.E.H. Smith, M.N. Charlton, W.D. Taylor, L. Barlow-Busch and R.L. North. 2005. Phytoplankton nutrient status in Lake Erie in 1997. J. Great Lakes. Res. 31 (suppl. 2): 72-88. 21. Silsbe, G.R., S.J. Guildford and R.E.Hecky. 2006. Variability in chlorophyll a and photosynthetic parameters in Lake Victoria a nutrient saturated Great Lake. Limnology and Oceanography 51(5):2052-2063. 22. André, E.R., H.C. Duthie, and R.E. Hecky. 2006. Energy and nutrient dynamics of rock dwelling cichlids grazing on epilithic periphyton of the littoral zone of Lake Malawi, Africa. Verh. Verein. Theor. Angew. Limnol.29: in press. 23. Higgins, S.N., R.E. Hecky and S.J. Guildford. 2006. Environmental Controls on Cladophora growth dynamics in eastern Lake Erie: Application of the Cladophora growth model. J. Great Lakes Research 32:629-644. 24. Tamatamah, R., R.E. Hecky and H.C. Duthie. 2006. Phosphorus and suspended sediment loading from two rivers flowing into Lake Victoria Tanzania. Verh. Verein. Theor. Angew. Limnol. 29:1697-1701. 25. Hecky, R.E., H.A. Bootsma, and E. Odada. 2006. African Lake Management Initiatives: The Global Connection. Lakes and Reservoirs: Research and Management 11:203-213. 26. Boesch, D.F., R.E. Hecky, C. O’Melia, D.W. Schindler, and S. Seitzinger. 2006. Eutrophication of Swedish Seas. Swedish Environmental Protection Agency Report 5509:67 p. 27. Campbell, L., R.E. Hecky, D.G. Dixon and L. Chapman.2006. Food web structure and mercury transfer in two contrasting Ugandan highland crater lakes (East Africa). African Journal of Ecology 44:337-346. 28. Guildford, S.J., Bootsma, H.A., Taylor, W.D., Hecky, R.E. 2007. High variability of phytoplankton photosynthesis in response to environmental forcing in oligotrophic Lake Malawi/Nyasa. J. Great Lakes Res. 33:170-185. 29. Higgins, S.N., Malkin, S. Y., Howell, E. T., Guildford, S.J., Campbell, L., HiriartBaer, V., Hecky, R. E. 2007. An ecological review of Cladophora glomerata (Chlorophyta) in the Laurentian Great Lakes. Accepted J. Phycology. 30. Gondwe, M.J., Guildford, S.J., Hecky, R.E. 2007. Sandy shore benthic N2fixation in Lake Malawi, Africa. Accepted. Verh. Internat. Verein. Limnol. 31. Gondwe, M. J., Guildford, S.J., Hecky. 2007. Planktonic nitrogen fixation in Lake Malawi/Nyasa. In press. Hydrobiologia. 32. Guildford, S.J., Bootsma, H.A., Taylor, W.D., Hecky, R.E. 2007. High variability of phytoplankton photosynthesis in response to environmental forcing in oligotrophic Lake Malawi/Nyasa. J. Great Lakes Res. 33:170-185.