Trouts are closely related to salmons and the resemblance can be confusing. Generally, trouts remain in fresh water environments for their entire lives, but salmon, born in fresh water, migrate and live in saltwater environments for most of their adult lives before returning to fresh water during the final reproductive stage. The Lahontan cutthroat trout, Oncorhynchus clarkii henshawi (top), is a member of the Salmonidae family and inhabits several rivers in the Great Basin Region of the United States: Carson, Humboldt, Quinn, Truckee, and Walker. Measuring almost 1 meter in length, it is the largest of the cutthroat subspecies and is listed as an endangered species. The lake trout, Salvelinus namaycus (bottom), is the largest of the chars and has a limited distribution range; they are native to the lake regions of Canada, Alaska, and the northeastern United States.
