Welcome to the technical sessions schedule for the 2015 SEAFWA Annual Meeting.
NEW THIS YEAR! The technical schedule is capable of being sorted by date (i.e, Monday, Nov. 2), track (i.e. Wildlife Technical Sessions), or session (i.e. Wildlife Session #1). You can also search for a presentation title (i.e. Changing Landscapes by Coalition), key term (i.e. striped bass), or presenter last name (i.e. Weaver). The sort and search functions can be found on the navigation panel on the right side of this page. If you hover over the "Schedule" button, you’ll also see different schedule view options (i.e. Grid or Simple). Try selecting each of them to see which view you prefer.
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Thomas J. Kwak; U.S. Geological Survey, North Carolina Cooperative Fish and Wildlife Research Unit, North Carolina State University
Large North American ictalurid catfishes (channel catfish, blue catfish, flathead catfish) have been widely introduced in the United States beyond their native ranges. These domestic invasive species receive less scientific and media attention relative to exotic fish introductions, but their ecological impacts may be equally or more severe. They have been implicated for the decline of sport fishes, imperiled fishes, and amphibians. Introduced flathead catfish are of special concern, because they are an aggressive obligate carnivore with great potential to alter native fish assemblages. Since the 1950s, they have been introduced into southeastern U.S. Atlantic Slope rivers from Florida to Pennsylvania, established by releases of few individuals. The flathead catfish has been considered easily collected by electrofishing, of low densities, with sedentary behavior, restricted to freshwater, and feasible to manage in restricted river units, but recent research suggests that electrofishing is an inefficient gear, it occurs in dense populations, individuals migrate throughout a drainage, it tolerates brackish waters, and populations must be managed at the basin scale. Management of introduced catfish focuses on limiting dispersal among basins, public education, and encouraging harvest. Additional research is needed to elucidate the effects on native fishes and develop and assess alternative population control measures.
Tuesday November 3, 2015 8:40am - 9:00am EST
Victoria
