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Steelhead 101. A trout by any other name…. Donald Ratcliff U.S. Fish and Wildlife Service donald_ratcliff@fws.gov. Steelhead Characteristics. Steelhead are: A member of the Pacific salmon and trout family The same species as ‘rainbow trout’
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Steelhead 101 A trout by any other name… Donald Ratcliff U.S. Fish and Wildlife Service donald_ratcliff@fws.gov
Steelhead Characteristics Steelhead are: • A member of the Pacific salmon and trout family • The same species as ‘rainbow trout’ • Widespread in distribution, but limited in population size in many areas • Anadromous
What Is Anadromy? Anadromous (adj) – Fish that migrate into freshwater environments from the sea to spawn (i.e. sea-, or ocean-run fish)
Challenges to Anadromous Fishes in the Central Valley • Migration – Adults may have trouble returning to the system and juveniles may not be able to get out • Habitat – Alterations have changed traditional spawning and rearing habitats • Decades of stocking ‘rainbow trout’ in native steelhead waters
Challenges to Anadromous Fishes in the Central Valley • Non-native predators, competitors, species that change habitat, species that change food-webs and productivity • Multiple other conditions in the Valley and beyond