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Scholars Day: April 15, 2009

Effects of Alewife and Round Goby on Yellow Perch Reproductive Performance

Yellow perch is a native species in Lake Michigan, historically supporting both commercial and recreational fisheries, but recently, they are suffering from very erratic recruitment. Several factors including predation, zooplankton, water movement and spawning stock characteristics have been proposed to potentially influence their recruitment. Recent studies demonstrated that fatty acid contents in both maternal and larval diets had significant effect on growth and survival of yellow perch offspring. Thus, we are currently conducting research to evaluate how alewife and round goby affect their reproductive performance (e.g., lipid and fatty acid composition of their eggs, embryo survival at eyed stage). Alewife and round goby are two available prey species for yellow perch in Lake Michigan and present distinct fatty acid signatures. In this presentation, I will give an overview of the research I am currently conducting for my MS thesis.

Presenter: Christina Accardi (Graduate Student)
Topic: Environmental Science
Location: 219 Hartwell
Time: 11 am (Session II)