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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 Gallatin River in the valley section has excellent [26] fly fishing for both rainbow and brown trout. Average rainbow size is 12 inches (300 mm). Brown trout average between 12 and 14 inches, although larger fish are often caught. [18] An unlimited number of brown or rainbow trout may be harvested daily.
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.
This subspecies of rainbow trout can grow to very large sizes, possibly having evolved to live longer as low flows often restrict spawning runs up their main spawning stream, Pine Creek. [2] The average size of Eagle Lake trout are about 1.5 lb (0.68 kg) and can exceed 10 lb (4.5 kg).
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]
The average length is 24–36 inches (61–91 centimetres). ... mature at a larger size and are less abundant. ... namegoshens = "rainbow trout", literally meaning ...
Some coastal rainbow trout ... Sea-run forms of coastal cutthroat trout average 2 to 5 pounds (0.9 to 2.3 kg). ... Females, depending on size, lay between 200 and ...
Fish over 12 inches (30 cm) are considered large. Golden trout that have been transplanted to lakes have been recorded up to 11 pounds (5.0 kg). The golden trout should be distinguished from the similarly named golden rainbow trout, also known as the palomino trout. The golden rainbow is a color variant of the rainbow trout. [9]