Oncorhynchus mykiss : Rainbow Trout

Origin: Eastern Pacific (from Alaska to Mexico).

Colonized areas: Throughout the world. Considered to be one of the most widespread non-native fish species in the world.

Method of colonization: Voluntary introduction for sport fishing.

Impacts: Hybridization, transmission of disease, predation and competition with indigenous fish species.

Rate of reproduction: 700 to 4000 eggs per clutch.

Obstacles to eradication: Very widespread distribution, value for sport fishing.