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Steelhead in 1924 illustration using the original taxonomic name, Salmo gairdneri The freshwater form of the steelhead is the rainbow trout (Oncorhynchus mykiss).The difference between these forms of the species is that steelhead migrate to the ocean and return to freshwater tributaries to spawn, whereas non-anadromous rainbow trout do not leave freshwater.
The rainbow trout (Oncorhynchus mykiss) is a species of trout native to cold-water tributaries of the Pacific Ocean in North America and Asia. The steelhead (sometimes called steelhead trout) is an anadromous (sea-run) form of the coastal rainbow trout (O. m. irideus) or Columbia River redband trout (O. m. gairdneri) that usually returns to freshwater to spawn after living two to three years ...
The PFBC also provides steelhead and brown trout that are about 4 inches long in August and September to cooperative groups like the 3-CU. Those volunteers raise the fish to about 7 inches long ...
The steelhead is a rainbow trout that — unlike its freshwater little brother — grows up in the ocean. And it grows up really big, to 2 or 3 feet. The steelhead is like its cousin, the salmon.
Steelhead trout fingerlings swim in a raceway pond at the California Department of Fish and Wildlife Feather River Hatchery in 2021. (Patrick T. Fallon / AFP via Getty Images)
The rainbow trout has a steelhead subspecies, generally accepted as coming from Sonoma Creek. The rainbow trout of New Zealand still show the steelhead tendency to run up rivers in winter to spawn. [2] In Australia, the rainbow trout was introduced in 1894 from New Zealand and is an extremely popular gamefish in recreational angling. [3]
Southern California steelhead trout have been pushed to the brink of extinction as their river habitats have been altered by development and fragmented by barriers and dams.
The Eel River supports runs of multiple anadromous fishes: Chinook, coho salmon, steelhead (rainbow trout) and coastal cutthroat trout among the major species. In its natural state, it was the third-largest salmon- and steelhead-producing river system in California, with over a million fish spawning annually, after the Sacramento and Klamath ...