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A White Paper on the Status and Needs of Walleye Aquaculture in the North Central Region

Document format: pdf

Publisher: North Central Regional Aquaculture Center

Creation date: March 29, 2000

To enhance walleye culture opportunities in the NCR, NCRAC-sponsored research has been organized in work groups, functioning in a collaborative way to resolve critical constraints including biological and technological. Typically, university researchers led work groups with collaboration of state and federal agencies, and private producers. The first NCRAC-sponsored project was initiated May 1, 1989 and they have continued to the present. The first walleye work group involved faculty from Southern Illinois University-Carbondale, the University of Notre Dame, Iowa State University, the University of Minnesota at St. Paul, and the University of Wisconsin-Madison, and collaboration from several state agencies (Iowa Department of Natural Resources, Kansas Department of Fish and Game, Minnesota Department of Natural Resources, Ohio Department of Natural Resources, Wisconsin Department of Natural Resources) and the U.S. Fish and Wildlife Service Garrison Dam and Valley City National Fish hatcheries. The first NCRAC sponsored research focused on (1) characterization of the natural reproductive cycle and procedures for manipulating reproduction and inducing spawning in walleye brood stock; (2) fertilization strategies and zooplankton seeding for pond production of fingerlings; and (3) understanding of and control for the problem of non-inflation of the gas bladder of intensively cultured fry. Subsequent projects have been concerned with out-of-season spawning, stocking density for pond culture, methods for pond harvest, genetics, stock evaluation, hybrid walleye, production of food-size walleye, and production of all female walleye.

Key Words: USDA • NCRAC • Walleye