Global Range: (>2,500,000 square km (greater than 1,000,000 square miles)) Arctic and subarctic waters between 55 and 80 degrees N. Fi ve apparently discrete populations. 1. Western arctic group winters along pack ice in Bering Sea, summers in Beaufort Sea, mainly east of Barrow to Amundsen Gulf (IUCN 1991). 2. Davis Strait population: summer along the east and north coasts of Baffin Island, in Baffin Bay, and the Canadian Arctic Archipelago; winter in the Daviis Strait (Moore and Reeves 1993, Finley 2000). 3. Hudson Bay population: summer in northwestern Hudson Bay, northern Foxe Basin; winter in Hudson Strait and Davis Strait (Finley 2000). 4. Spitsbergen population (Svalbard-Barents Sea): east coast of Greenland, Iceland, and Jan Mayen area in winter; mostly between Greenland, Spitsbergen, and the Barents Sea, north to 80 degrees N in summer). 5. Sea of Okhotsk.
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