Food habits and prey size-selection of yellow perch in extreme southern Lake Michigan, with emphasis on the prey : round goby

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dc.contributor.advisor Lauer, Thomas E. en_US
dc.contributor.author Truemper, Holly A. en_US
dc.coverage.spatial n-us-in en_US
dc.date.accessioned 2011-06-03T19:39:58Z
dc.date.available 2011-06-03T19:39:58Z
dc.date.created 2003 en_US
dc.date.issued 2003
dc.identifier LD2489.Z78 2003 .T78 en_US
dc.identifier.uri http://cardinalscholar.bsu.edu/handle/handle/187565
dc.description.abstract Food habits for yellow perch Perca flavescens were compared using current and previous diet studies from southern Lake Michigan index sites. Yellow perch were not gape limited but size-selective in consumption of the newly established round goby Neogobius melanostomus. Ingested fish ranged from 7 to 47% of the yellow perch's total length and 2 to 53% of their gape. Currently, yellow perch diets are dominated in volume by fish/fish products (85%), which is double from previous studies. Utilization of zooplankton and insect prey items in the yellow perch diet has decreased to <1% by volume in 2002, contrasting with previous consumption of 4 to 20% and 5 to 17%, respectively, from previous studies during 1971-1993. Yellow perch are exhibiting opportunistic, generalist feeding strategy that incorporates both exotic and native prey items, allowing the population to use multiple prey items with the changing prey base in Lake Michigan.
dc.description.sponsorship Department of Biology
dc.format.extent vii, 93 leaves : ill. ; 28 cm. en_US
dc.source Virtual Press en_US
dc.subject.lcsh Yellow perch -- Food -- Indiana. en_US
dc.subject.lcsh Gobiidae -- Predators of -- Indiana. en_US
dc.title Food habits and prey size-selection of yellow perch in extreme southern Lake Michigan, with emphasis on the prey : round goby en_US
dc.description.degree Thesis (M.S.)
dc.identifier.cardcat-url http://liblink.bsu.edu/catkey/1260485 en_US


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  • Master's Theses [5318]
    Master's theses submitted to the Graduate School by Ball State University master's degree candidates in partial fulfillment of degree requirements.

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