Seasonal Movements of White Sturgeon (Acipenser Transmontanus) in the Mid-Columbia River

Abstract

Twenty-nine white sturgeon (Acipenser transmontanus) were instrumented in 1975 and 1976 with separately identifiable radio transmitters to study seasonal movements in the mid-Columbia River, southeastern Washington. Tagged fish remained in free-flowing areas of the river and were inactive in winter. Movements occurred in summer and early fall. Activity appeared related to water temperature and sturgeon size.