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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 ...
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.
Rainbows also consume decomposing flesh from carcasses of other fish. Adult steelhead in the ocean feed primarily on other fish, squid, and amphipods. [110] Cultured steelhead are fed a diet formulated to closely resemble their natural diet that includes fish meal, fish oil, vitamins and minerals, and the carotenoid asthaxanthin for pigmentation.
I decided lack of rain was limiting the number of fish in the river, and made the decision to fish the rest of the day out in the bay.
The Kamloops rainbow trout or Kamloops trout (Oncorhynchus mykiss kamloops) is a local variety of the rainbow trout, a fish in the family Salmonidae.From its native range in British Columbia, Canada, it has been transferred to several other drainages in the United States. [2]
The Pennsylvania Fish and Boat Commission has temporarily reduced the number of steelhead fish it is stocking. Here's what's happening. PFBC temporarily reduces steelhead stocking, explains why ...
Feb. 3—State wildlife managers have lost nearly 25,000 steelhead smolts from a rearing pond at the Lyons Ferry Hatchery on the Snake River, south of Palouse Falls. The loss, which was discovered ...
Adopted as the state fish in 1969, the steelhead is one of the most popular fish for recreational fishing in Washington. While the Legislature used an old scientific name Salmo gairdnerii to describe the fish, [ 8 ] two subspecies of rainbow trout are anadromous and known as steelhead— Columbia River redband trout O. m. gairdneri and coastal ...