Fish hatcheries; Fisheries management; Fishes; Biologists (USFWS); Employees (USFWS); Work of the Service; Tagging; Threatened species; Monitoring;
Brian Davis measures a steelhead before it gets tagged. It must be more than 75 millimeters long to get tagged. Biologists use this tracking information to see if the hatchery fish that are spawning here are affecting the survival and productivity...