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Paris D Collingsworth

Forestry and Natural Resources 

  • Research Assistant Professor

IL-IN Sea Grant College Program 

  • Great Lakes Ecosystems Ext Specialist
IL-IN sea Grant
77 W. Jackson Blvd.
Chicago, IL 60604

Paris earned a bachelor’s degree in biology from Samford University, a master’s degree in zoology from Southern Illinois University and a Ph.D. in evolution, ecology and organismal biology from the Ohio State University. Prior to coming to Purdue, he did post-doctoral research at the US Geological Survey and the Cooperative Institute for Limnology and Ecosystems Research in Ann Arbor, Michigan. His research focuses on ecosystem dynamics in the Laurentian Great Lakes. Working in these large systems, Paris uses ecological and statistical models as tools to develop a mechanistic understanding about how anthropogenic and natural stressors impact ecosystem structure and function. This research is interdisciplinary by nature and gathering the data that inform these models requires collaborations with academic and agency personnel from across the basin. Current projects include identifying environmental factors that influence prey fish populations in Lakes Michigan and Huron, identifying sources of variation in the relationship between total phosphorus and chlorophyll concentrations in Lake Erie, determining the ecological effects of temporal and spatial variation of the deep chlorophyll maximum in Lake Ontario and exploring the spatial extent and ecological effects of hypoxia in Lake Erie.


Kraus, R., C. Knight, T. Farmer, A.M. Gorman, G. Warren, P. Collingsworth, P. Kocovsky, and J. Conroy. Dynamic Hypoxic Zones in Lake Erie Compress Fish Habitat Altering Vulnerability to Fishing Gears. 2015. In press: Canadian Journal of Fisheries and Aquatic Sciences.

Feiner, Z.S., D.B. Bunnell, T.O. Höök, C.P. Madenjian and P.D. Collingsworth. Temporal variation in growth, maturation and recruitment dynamics of rainbow smelt (Osmerus mordax) in Lake Michigan. 2015. In press: Journal of Great Lakes Research.

Gover, T.R., M.K. Nims, J.J. VanTassell, P.D. Collingsworth, J.W. Olesik, S.A. Ludsin, and E.A. Marschall. How much cleaning is needed when processing larval otoliths for microchemical analysis? 2014. Transactions of the American Fisheries Society. 143: 779-783.

Collingsworth, P.D., D.B. Bunnell, C.P. Madenjian, S.C. Riley, and E.F. Roseman. Comparative population dynamics of alewife (Alosa pseudoharengus) and bloater (Coregonus hoyi) in Lakes Michigan and Huron. 2014. Transactions of the American Fisheries Society. 143: 294-309.

Collingsworth, P.D. and E. A. Marschall. 2011. Variation in yellow perch female reproductive characteristics in Lake Erie Freshwater Biology 56: 2500-2513.

Collingsworth, P.D. and E.A. Marschall. 2011. Identifying relationships between catches of spawning-condition yellow perch and environmental variables in the western basin of Lake Erie. Transactions of the American Fisheries Society. 140: 31-36.

Collingsworth, P.D., J.J. Van-Tassell, J.W. Olesik, and E.A. Marschall. 2010. Effects of temperature and elemental concentration on the chemical composition of juvenile yellow perch otoliths. Canadian Journal of Fisheries and Aquatic Sciences. 67: 1187-1196.

Collingsworth, P.D. and C.C. Kohler. 2010. Abundance and habitat use of juvenile bluegill among different macrophyte stands. Lake and Reservoir Management. 26: 35-42.