The most widely stocked freshwater sport fish in Canada and one of the most transplanted fish on earth (Oncorhynchus mykiss). Native to the Pacific basin — from Kamchatka and the Aleutians through coastal British Columbia south to northern Mexico — with interior redband forms in inland drainages. In BC alone it fills thousands of lakes as a stocked stillwater fish and rivers as wild river-spawning stock. Kootenay Lake is famous for the giant piscivorous Gerrard strain; regional lakes get specialized stillwater strains (Blackwater, Pennask); and native interior redbands hold in flowing water like the columbia river tailwater.