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Tuesday, January 26 • 11:00am - 11:20am
Movement of Large Blue and Flathead Catfish in the Ohio River

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AUTHORS: Jeremy Pritt*, Ohio Department of Natural Resources, Division of Wildlife; Richard Zweifel, Ohio Department of Natural Resources, Division of Wildlife; Justin Walters, Ohio Department of Natural Resources, Division of Wildlife, Matt Hangsleben; Ohio Department of Natural Resources, Division of Wildlife

ABSTRACT: Catfish angling has increased in popularity and large river systems offer opportunities for catching trophy-sized blue and flathead catfish. However, large rivers are often multi-jurisdictional and fragmented by dams that may be barriers to fish migration, complicating management of catfish. We used acoustic telemetry and angler reports of Carlin-tagged fish to determine the spatial extent of movement of blue and flathead catfish and quantify among-pool movements (i.e., passage through dams) in the Ohio portion of the Ohio River. Beginning in fall 2014, we implanted 40 blue catfish and 21 flathead catfish, captured in the Meldahl Pool, with acoustic transmitters and external Carlin tags. We tagged an additional 24 blue catfish and 19 flathead catfish with Carlin tags only. We used a fixed receiver array and angler reports to monitor fish movement. During fall 2014 to summer of 2015, we observed two blue catfish moving downstream past the Meldahl Dam, with one of these individuals returning to make an upstream passage through the Meldahl Dam. In addition, one flathead catfish was observed to make an upstream passage through the Greenup Dam. Blue and flathead catfish regularly made long-distance movements (>25 km) in relatively short time periods (

Tuesday January 26, 2016 11:00am - 11:20am
Atrium

Attendees (13)