It is the most abundant and wide-ranging ice seal in the northern hemisphere : ranging throughout the Arctic Ocean , into the Bering Sea and Okhotsk Sea as far south as the northern coast of Japan in the Pacific , and throughout the North Atlantic coasts of Greenland and Scandinavia as far south as Newfoundland , and include two freshwater subspecies in northern Europe .
The live throughout the Arctic Ocean , into the Bering Sea and Okhotsk Sea as far south as the northern coast of Japan in the Pacific , and throughout the North Atlantic coasts of Greenland and Scandinavia as far south as Newfoundland , and include two freshwater subspecies in northern Europe .