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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 ...
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]
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.
Bighorn River (Montana) If you're after trout on your family fishing trip, head to Montana's Bighorn River. Brown trout are most common in this cool, clear river, while rainbow trout are a bit ...
Adult brown trout are between 35 and 60 cm (14 and 24 in) long, and can weigh from 0.5 to 2.4 kg (1.1 to 5.3 lb). Breeding males will develop a hook-like, upward-facing protrusion on the lower jaw called a kype. In freshwater the top of the trout is an olive color with brown and black spots, with the ventral side being tan to yellow.
This was the first release of brown trout into U.S. waters. Between 1884 and 1890, brown trout were introduced into suitable habitats throughout the U.S. [7] By 1900, 38 states and two territories had received stocks of brown trout. Their adaptability resulted in most of these introductions establishing wild, self-sustaining populations.
Jul. 16—Most rainbow trout swimming in Montana's waters are not native to the state — with the singular exception of the redband trout in the Kootenai drainage. While common throughout most of ...
They also showed fin damage in the presence of brown trout, all of which suggests aggressive and territorial behavior by brown trout. [59] Non-native brook trout and rainbow trout have been stocked and transplanted throughout the native range of Rocky Mountain cutthroat trout, are widely established, and generally self-sustaining.
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