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Rainbow trout

Truita irisada
Oncorhynchus mykiss (Walbaum, 1792)
Origin: Al·lòctona
Habitat: Aquatic
Other popular names: Truita arc iris

Is a species native to native to cold-water tributaries of the Pacific Ocean. As with trout is one of the 100 most invasive species in the world. Used for restocking since the late nineteenth century. There are different subspecies adapted to living in the sea, rivers and lakes.