Each year, state natural resources and fish and wildlife agencies invest significant resources to support walleye fisheries. Locally, Iowa’s Fairport Fish Hatchery staff spend several weeks collecting broodstock (adult walleyes) on the Mississippi River for hatchery production.
The LaSalle Hatchery in Illinois does, as well, for sauger on the Illinois River. These activities dominate time resources and minimize population monitoring of waterbodies during these periods.
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