Abstract
Abstract Our research focused on the development of domesticated broodstock of white bass Morone chrysops to reduce or eliminate the dependence of public and private hatcheries on wild-caught fish. Juveniles, obtained from spawning wild white bass, were reared to a mature size in an outdoor tank system under ambient environmental conditions. At 1 year of age, a few males were mature, and by 2 years of age all males and females were mature. Females were induced to ovulate with human chorionic gonadotropin (550 IU/kg) and then strip-spawned. Mean estimated egg production was 98,273 eggs/kg for 2-year-old fish and 127,805 eggs/kg for 3-year-old fish. Holding mature fish in reduced water temperatures extended the spawning period by 3 months. The use of cultured white bass broodstock should facilitate hatchery operations for stocking public waters and for hybrid striped bass aquaculture.
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