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Tuesday, January 30 • 10:40am - 11:00am
SYMPOSIA-07: Developing, Validating, and Applying Standard Methods to Improve Fisheries Management and Research

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AUTHORS. Joseph D. Conroy, Jeremy J. Pritt, Stephen M. Tyszko, Chris G. French, Richard D. Zweifel - Ohio Department of Natural Resources, Division of Wildlife

ABSTRACT. From minimizing bias of individual samples to facilitating data sharing, standard sampling approaches have many benefits for fisheries management and research. However, accepted methods may not always be directly transferable from one situation to another, requiring additional development work to allow application. Further, whereas most standard methods have clear criteria for sampling (i.e., time of year, gear used, site selection, etc.), they often lack a direct assessment or validation of what the method actually indexes relative to the fish population of interest. Finally, applying standard methods over long periods provide high-quality datasets on which to evaluate existing programs, regulations, and research questions. Here, we illustrate approaches to development, validation, and application of standard methods using the Inland Management System, the planned, iterative, priority-based approach to standard assessment of reservoir sport fish populations used by the Ohio Department of Natural Resources, Division of Wildlife. Specifically, we describe (1) developing a low-frequency electrofishing approach to assess recently-stocked Blue Catfish Ictalurus furcatus populations; (2) validating catch per unit effort (# caught/h) from shoreline boat electrofishing as an index of Largemouth Bass Micropterus salmoides density; and, (3) applying fall shoreline electrofishing as an index of Sander spp. stocking success to inform management programs and research projects. By developing standard assessments that build on existing ones, validating commonly used standard methods, and systematically applying standard methods fisheries managers learn more about managed sport fish populations in addition to the methods used to assess them.

Tuesday January 30, 2018 10:40am - 11:00am CST