Bud Mundsack of Genoa National Fish Hatchery in Wisconsin empties a hoop net during the spring spawning run on the upper Mississippi River. The cool water hatchery production program (walleye and northern pike) is dependent on wild brood stock. (03/1986)

Bud Mundsack of Genoa National Fish Hatchery in Wisconsin empties a hoop net during the spring spawning run on the upper Mississippi River. The cool water hatchery production program (walleye and northern pike) is dependent on wild brood stock. (03/1986)

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