Illinois Natural History Survey - University of Illinois

 

Will Stacy

 

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My thesis work focuses on the nearshore fish community and describing patterns associated with different habitat types.  Although often considered a homogenous unit for research and management purposes, the nearshore zone of the Illinois waters of Lake Michigan is composed of diverse habitats that contrast in terms of benthic substrate, habitat complexity, and thermal regime.  Though the fish community is comprised of many species in this region, the three most commonly captured in our small-mesh gillnet sampling regime are the native yellow perch, and invasive round goby and alewife.  Using otoliths collected from round goby and yellow perch, I will be looking at patterns in size-at-age and population age structure in order to understand the spatial and temporal variability in the growth and survival of these fishes.





Illinois Natural History Survey

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