Illinois Natural History Survey - University of Illinois

Sergiusz J Czesny
Title: Associate Professional Scientist, Director, Lake Michigan Biological Station
Mailing address:
Lake Michigan Biological Station
400 17th Street, Zion IL 60099
Zion, IL 60099
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Phone: 847-872-8677
Fax: 847-872-9679

My research interests focus on the ecology and ecophysiology of aquatic ecosystems. I am interested in the ecosystem scale trophic interactions, population dynamics, and early life history of fish, predator-prey interactions, and the ecology of invasive species with emphasis on mechanisms responsible for successful range expansions. I also pursue questions related to the function of essential nutrients (vitamins, fatty acids, etc.) in aquatic food webs and their role in regulating reproductive success and recruitment of fish.
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Selected publications:

Turschak, B.A., D.B. Bunnell, S.J. Czesny, T.O. Hook, J. Janssen, D.M. Warner and H.A. Bootsma. 2014. Nearshore energy subsidies support Lake Michigan fishes and invertebrates following major changes in food web structure. Ecology. 95: 1243-1252.

Michalak, K., Czesny, S., Epifanio, J., Snyder, R.J., Schultz, E.T., Velotta, J.P., McCormick, S.D.,  Brown, B.L., Santopietro, G., Michalak, P. 2014. Beta-thymosin gene polymorphism associated with freshwater invasiveness of alewife (Alosa pseudoharengus). Journal of Experimental Zoology Part A-Ecological Genetics and Physiology. 321: 233-240.

Dub, J.D., Redman, R.A., Wahl, D.H., and Czesny, S.J. 2014. Utilizing random forest analysis with otolith mass and total fish length to obtain rapid and objective estimates of fish age. Canadian Journal of Fisheries and Aquatic Sciences. 70: 1396–1401

Dub, J.D., Redman, R.A., Wahl, D.H., and Czesny, S.J. 2013. Size-specific growth and mortality of juvenile yellow perch in southwestern Lake Michigan. Journal of Great Lakes Research

Czesny, S., Epifanio, J., and Michalak, P. 2012. Genetic divergence between freshwater and marine morphs of alewife (Alosa pseudoharengus): A next-generation sequencing analysis. PLoS ONE. 7(3): e31803. doi:10.1371/journal.pone.0031803

Czesny, S., Rinchard, J., Lee, B-J., Dabrowski, K., Dettmers, J.M., and Cao, Y. 2012. Does spatial variation in egg thiamine and fatty acid concentration of Lake Michigan lake trout (Salvelinus namaycush) lead to differential EMS and yolk edema offspring mortality? Journal of Fish Biology. 80: 2475-2493.

Creque, S.M, and Czesny, S.J. 2011. Diet overlap of non-native alewife with native yellow perch and spottail shiner in nearshore waters of southwestern Lake Michigan, 2000-2007. Ecology of Freshwater Fish. doi: 10.1111/j.1600-0633.2011.00538.x

Czesny, S., Rinchard, J. Hansen, S.D, Dettmers, J.M., Dabrowski, K. 2011. Fatty acid signatures of Lake Michigan prey fish and invertebrates: among species differences and spatiotemporal variability. Canadian Journal of Fisheries and Aquatic Sciences. 68:(7) 1211-1230. doi: 10.1139/f2011-048

Hill, W.R., Rinchard, J.M., and Czesny, S. 2011. Light, nutrients, and fatty acids in stream periphyton. 2011. Freshwater Biology. doi:10.1111/j.1365-2427.2011.02622.x.

Redman R., Czesny, S.J., Dettmers, J.M., Weber, M.J., and Makauskas, D. 2011. Old tales in recent context: current perspective on yellow perch recruitment in Lake Michigan. Transactions of the American Fisheries Society. 140: 1277-1289.

Martin B.T., Czesny, S.J., and Wahl, D.H. 2011. Vertical distribution of larval fish in pelagic waters of southwest Lake Michigan: implications for growth, survival, and dispersal. Journal of Great Lakes Research. 37: 279-288.

Weber, M.J., Dettmers, J.M., Wahl, D.H. and Czesny, S.J. 2011. Size preferences and behaviors of native yellow perch foraging on invasive round gobies. Journal of Great Lakes Research. 37: 584-587.

Creque, S.M, Stainbrook, K.M., Glover, D.C., Czesny, S.J., and Dettmers, J.M. 2010. Mapping bottom substrate in Illinois waters of Lake Michigan: Linking substrate and biology. Journal of Great Lakes Research. 36, 780-789.

Weber, M.J., Dettmers, J.M., Wahl, D.H., and Czesny, S. 2010. Effects of predator-prey interactions and benthic habitat complexity on selectivity of a foraging generalist. Transactions of the American Fisheries Society. 139: 1004-1013.

Czesny, S., Dettmers, J.M., Rinchard, J., Dabrowski, K. 2009. Linking egg thiamine and fatty acid concentrations of Lake Michigan lake trout (Salvelinus namaycush) with early life stage mortality. Journal of Aquatic Animal Health. 21: 262-271.

Vuori, K.A., Paavilainen, T., Nikinmaa, M., Czesny, S. and Rinchard, J. 2009. Molecular markers of yolk-sac fry of lake trout show differences between EMS and M74. Journal of Aquatic Animal Health. 21: 279-289.

Jaroszewska, M., Lee, B-J., Dabrowski, K., Czesny, S., Rinchard, J., Trzeciak, P., and Wilczynska, B. 2009. Effects of vitamin B1 (thiamine) deficiency in lake trout (Salvelinus namaycush) alevins at hatching stage. Comparative Biochemistry and Physiology, Part A. 154: 255
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PhD, Environmental Sciences, Ohio State University, Columbus, 2000

MS, Applied Ecology, University of Lodz, Poland, 1993

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