North Atlantic Ocean: temperate and arctic zones in northern hemisphere (Ref. 51442). Western Atlantic: Atlantic drainages from northern Quebec, Canada, to Connecticut and New York, USA; inland to Lake Ontario where it is now extirpated (Ref. 86798). Landlocked stocks are present in North America (Ref. 1998). Eastern Atlantic: White and Barents Sea basins through northeastern Europe to the Baltic and North Sea basins, including Iceland (Ref. 59043). Introduced to New Zealand, Chile, southern Argentina (Ref. 59043) and Australia (Ref. 6390).