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Theses/Dissertations

2012

Environmental Science and Ecology Theses

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Dietary Effects Of Non-Native Species On Yellow Perch, Perca Flavescens, Reproductive Performance, Christina Ann Cappelli Dec 2012

Dietary Effects Of Non-Native Species On Yellow Perch, Perca Flavescens, Reproductive Performance, Christina Ann Cappelli

Environmental Science and Ecology Theses

In Lake Michigan, native yellow perch (Perca flavescens) have experienced poor recruitment since 1989. With the introduction of non-native species yellow perch prey fish have changed dramatically, which could affect successful recruitment of these fish. Therefore, in the present study I investigated dietary effects of two non-native species (alewife and round goby) on female yellow perch reproduction using lipid and fatty acid composition of their eggs, liver, muscle, and visceral fat. Two-year-old yellow perch were fed two diets, representing two distinct fatty acid signatures. These two diets were significantly different, in terms of fatty acid composition, with alewife containing higher ...