Bluegill use of suspended and floating shade structure at four light levels
Creators:Brechbuhler, Craig D.
Advisor:Johnson, David Lawrence, 1945-
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Publisher:The Ohio State University
Series/Report no.:The Ohio State University. College of Food, Agricultural, and Environmental Sciences Honors Theses; 1989
Fish are often observed under overhead cover. This study used a laboratory setting to compare bluegill Lepomis macrochirus use of floating and suspended overhead cover at four light levels. Bluegills spent significantly (P =< 0.05) more time in the floating structure quadrant than the suspended quadrant at three out of four light intensities. Position of fish was not significantly different (P > 0.05) across light levels. I concluded that a tactile stimulus may be important to the bluegill. This could be important in making fish habitat management decisions. It may be better to add structure in contact with the water rather than suspended over it.