Adult freshwater stream rainbow trout average between 0.5 and 2.5 kilograms (1 and 5 lb), while lake-dwelling and anadromous forms may reach 9 kg (20 lb). Coloration varies widely based on subspecies, forms, and habitat.

Steelhead trout are the anadromous form of rainbow trout. Rainbow trout can remain in freshwater their entire lives, or they can migrate to the ocean and then return to freshwater to spawn. These ocean-bound migrating fish are known as steelhead trout.

Native Range: Pacific Slope from Kuskokwim River, Alaska, to (at least) Rio Santa Domingo, Baja California; upper Mackenzie River drainage (Arctic basin), Alberta and British Columbia; endorheic basins of southern Oregon (Page and Burr 1991). Table 1.

Unlike brook and brown trout, wild rainbow trout (within their native range) typically spawns during the late winter and spring with peak spawning activity in March and April when water temperature are between 10 and 15°C. Spawning is triggered by …

Adult freshwater stream rainbow trout average between 0.5 and 2.5 kilograms (1 and 5 lb), while lake-dwelling and anadromous forms may reach 9 kg (20 lb). Coloration varies widely based on subspecies, forms, and habitat.

2019年11月15日 · The native range of the rainbow trout is a fairly narrow band along the western coast of North America, from the southern tributaries of Alaska’s Kuskokwim River in the north to the mountains of northern Mexico in the south.

Distribution of the Rainbow Trout. This species lives along the coastal seas of the North Pacific. You can find them from the coast of California up through Canada to Alaska. Their populations also range across the Bearing Strait to eastern Russia.

2008年12月8日 · The native range of the rainbow trout in includes southwestern Alaska to the Sierra Madre Occidental in Mexico, as well as tributaries of the Pacific Ocean in Asia (Behnke 2002). Rainbow trout have been introduced all over the world and self-sustaining populations have proliferated (Behnke 2002).

Range The historic range of rainbow trout extends from Alaska to Mexico and includes British Columbia, Washington, Ore-gon, California, Idaho, and Nevada. Rainbow trout found primarily east of the Cascade Mountains in the U.S. and in the Upper Fraser River of British Columbia are often called Rainbow trout current distribution.

2021年10月1日 · Native Range in North America (Pacific Coast from northern Mexico to Alaska): There are a few distinct strains or populations native of rainbow trout in the native range: coastal rainbow trout, redband rainbow trout, and steelhead.