Gastric evacuation rates of white perch,Morone americana,determined from laboratory and field data |
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| Authors: | Donna L Parrish F Joseph Margraf |
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| Institution: | (1) Ohio Cooperative Fish and Wildlife Research Unit, The Ohio State University, Columbus, OH, 43210, U.S.A.;(2) Present address: Northeast Anadromous Fish Research Laboratory (U. S. F. W. S.), P. O. Box 796, Turners Falls, MA, 01376, U.S.A.;(3) Present address: West Virginia Cooperative Fish and Wildlife Research Unit, West Virginia University, Morgantown, WV, 26506, U.S.A. |
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| Abstract: | Synopsis Gastric evacuation rates (R) of white perch,Morone americana, were determined in laboratory experiments and by using field data. The resulting relationship ofR and temperature (T) for white perch wasR = 0.028e0.106T (r2 = 0.98). The high r2 of the regression indicates good agreement of the combined laboratory and field data. Our rate compares well with those available for other species; and especially for Eurasian perch, which has a similar thermal existence to white perch in Lake Erie. |
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| Keywords: | Consumption rate Daily ration Lake Erie |
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