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单词 Mykiss
释义

Mykiss

英语百科

Rainbow trout

Spawning steelheadEggs in gravel and rainbow trout alevinTypical juvenile rainbow trout showing parr marksTypical adult rainbow trout
line drawing of alevin and eggs
Photo of juvenile rainbow trout
Photo of adult rainbow trout

The rainbow trout (Oncorhynchus mykiss) is a trout and species of salmonid native to cold-water tributaries of the Pacific Ocean in Asia and North America. 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 fresh water to spawn after living two to three years in the ocean. Freshwater forms that have been introduced into the Great Lakes and migrate into tributaries to spawn are also called steelhead.

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