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Wednesday, January 27 • 2:00pm - 2:20pm
Gear-and Season-Specific Catch Rates of Age-0 Walleye and Age-0 White Bass In Harlan County Reservoir, Nebraska

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AUTHORS: Brett Miller*, Department of Biology, University of Nebraska at Kearney; Casey Schoenebeck, Department of Biology, University of Nebraska at Kearney; Keith Koupal, Nebraska Game and Parks Commission

ABSTRACT: The goal of this study was to offer a standardized sampling protocol for age-0 walleye Sander vitreus and age-0 white bass Morone chrysops. The objective of this study was to describe the gear-and season specific catch rates of age-0 walleye and age-0 white bass for three zones (riverine, transitional, and lacustrine) from July to September using bag seines, boat electrofishing, and small-mesh gill nets. There were no difference among reservoir zones for age-0 walleye (F = 3.023, df = 2, 155, P = 0.052) or age-0 white bass (F = 0.179, df = 2, 155, P = 0.836). However, there was a significant difference in gear for age-0 walleye (F = 31.172, df = 2, 155, P < 0.001) and age-0 white bass (F = 10.021, df = 2, 155, P < 0.001) in which boat electrofishing produced the highest CPUE. There was a significant difference among months for age-0 walleye (F = 3.358, df = 2, 155, P = 0.037) and age-0 white bass (F = 6.946, df = 2, 155, P = 0.001) where August showed the highest CPUE. Results from this study will provide mortality rates, operational effort, and length frequencies which will enable agencies to sample age-0 walleye and white bass.

Wednesday January 27, 2016 2:00pm - 2:20pm EST