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dc.contributor.authorByrne, Barbara A.en_US
dc.contributor.authorDetter, Debbieen_US
dc.contributor.authorFoy, Roberten_US
dc.contributor.authorWhitley, Susanen_US
dc.coverage.spatialDouglas Lakeen_US
dc.coverage.spatialBryant's Bogen_US
dc.date.accessioned2007-06-14T21:41:58Z
dc.date.available2007-06-14T21:41:58Z
dc.date.issued1991en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/54247
dc.description.abstractIt has been observed that Chaoborus americanus and Leptodora kindtii do not coexist in the zooplankton communities of Bryant's Bog and Douglas Lake. C. americanus is found in Bryant's Bog (a fishless environment), while L. kindtii is found in Douglas Lake (containing fish). This study looks at the possible role of fish predation in the observed species distribution. Perca flavescens (yellow perch) from Douglas Lake were fed individual C. americanus and then individual L. kindtii to obtain reaction times. The perch were then fed the two species at the same time to determine the existence of any species preference. Trials were also run using zooplankton stained with rhodamine to see how color affected prey selection by the perch. Results show that C. americanus was significantly selected over L. kindtii in both the stained and unstained trials, although the percentage of L. kindtii selected more than doubled in the trials done with the stained zooplankton. Thus, differential fish predation (at least in part due to color) may account for the absence of C. americanus from Douglas Lake.en_US
dc.format.extent350695 bytes
dc.format.extent3144 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.relation.haspartGraphen_US
dc.subjectFishesen_US
dc.subject.otherCHAOBORUSen_US
dc.subject.otherLEPTODORAen_US
dc.subject.otherZOOPLANKTONen_US
dc.subject.otherCOMMUNITIESen_US
dc.subject.otherFISHESen_US
dc.subject.otherPREDATIONen_US
dc.subject.otherPERCAen_US
dc.subject.otherCOLORen_US
dc.titleRole of fish predation in the distribution of Chaoborus americanus and Leptodora kindtii.en_US
dc.typeWorking Paperen_US
dc.subject.hlbsecondlevelNatural Resource and Environmenten_US
dc.subject.hlbtoplevelScienceen_US
dc.contributor.affiliationumBiological Station, University of Michiganen_US
dc.contributor.affiliationumcampusAnn Arboren_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/54247/1/2683.pdfen_US
dc.description.filedescriptionDescription of 2683.pdf : Access restricted to on-site users at the U-M Biological Station.en_US
dc.owningcollnameBiological Station, University of Michigan (UMBS)


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