Fluctuating abundance of yellow perch and their relationship to growth in southern Lake Michigan, 1984-2004

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dc.contributor.advisor Lauer, Thomas E. en_US
dc.contributor.author Headley, Heath C. en_US
dc.coverage.spatial nl----- en_US
dc.date.accessioned 2011-06-03T19:41:14Z
dc.date.available 2011-06-03T19:41:14Z
dc.date.created 2006 en_US
dc.date.issued 2006
dc.identifier LD2489.Z78 2006 .H43 en_US
dc.identifier.uri http://cardinalscholar.bsu.edu/handle/handle/188233
dc.description.abstract The relationship between yellow perch Perca flavescens abundance and growth rates were evaluated in the Indiana waters of Lake Michigan from 1984 to 2004. Relative abundance values were taken from trawl catch per unit effort (CPUE), while growth rates were determined by back-calculation. Abundance CPUE during the mid 1980's, was approximately one order of magnitude higher when compared to the 1990 to 2004 period. Growth rates were inversely related to relative abundance and were sexually dimorphic, with females growing faster than males. Regression analysis indicated approximately half of this observed variation in growth was due to abundance, and was most apparent with the smaller and younger fish. Both intraspecific competition and physiological changes associated with maturity are plausible explanations for the relationship.
dc.description.sponsorship Department of Biology
dc.format.extent v, 52 leaves : ill., map ; 28 cm. en_US
dc.source Virtual Press en_US
dc.subject.lcsh Fish populations -- Michigan, Lake. en_US
dc.subject.lcsh Yellow perch -- Michigan, Lake -- Growth. en_US
dc.title Fluctuating abundance of yellow perch and their relationship to growth in southern Lake Michigan, 1984-2004 en_US
dc.description.degree Thesis (M.S.)
dc.identifier.cardcat-url http://liblink.bsu.edu/catkey/1339149 en_US


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  • Master's Theses [5510]
    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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