backResearcher Profile

Dr. Ellie Prepas

Job Title: Professor
Employer: University of Alberta
Place of Birth: Hamilton, Ontario, Canada
Further Education: University of Waterloo (B.Math), York University (M.Env.), University of Toronto (Ph.D.).
Geographic focus of research: Alberta, Quebec

Brief synopsis of current research:
My research program has focused on factors that control biomass, production and species assemblages of planktonic and benthic biota in eutrophic lakes and rivers, such as those found in western Canada. Identification of these factors has allowed me to consider and model, across broad salimity and nutrient gradients, factors controlling change in biomass and comminity structure of primary and secondary producers in aquatic systems. My present focus is the land-water interface and the impact of land clearing and management on biota in surface waters.

Mailing address:
Dept. of Biological Sciences, Unversity of Alberta, Edmonton, AB, Canada, T6G 2E9

Recent Publications:

Zurawell, R.W., B.G. Kotak and E.E. Prepas. 1999. The influence of lake trophic status on the occurrence of microcystin-LR in the tissue of pulmonate snails. Freshwater Biology. 42:707-718.

Cooke, S.E. and E.E. Prepas. 1998. Stream phosphorus and nitrogen export from agricultural and forested watersheds on the Boreal Plain. Can. J. Fish. Aquat. Sci. 55:2292-2299.

Evans, J.C. and E.E. Prepas. 1997. Relative importance of iron and molybdenum in restricting phytoplankton biomass in high phosphorus saline lakes. Limnol. Oceanogr. 42(3):461-472.

Prepas, E.E., K.M. Field, T.P. Murphy, W. Johnson, J.M. Burke, and W.M. Tonn. 1997a. Introduction to the Amisk Lake project: oxygenation of a deep, eutrophic lake. Can. J. Fish. Aquat. Sci. 54:2105-2110.

Mitchell, P.A. and E.E. Prepas (eds.). 1990. Atlas of Alberta Lakes. The University of Alberta Press. (detailed information on 100 Alberta lakes: author of introduction on Water Quality and six lake chapters, coauthor on nine chapters) 690 pp.