Geographic location
Arctic
20
Antarctic
9
Pacific
8
Amundsen Sea
3
Kara Sea
3
Ross Sea
3
The Antarctic
3
Arctic Ocean
2
Bering Sea
2
Chukchi Sea
2
Greenland
2
Okhotsk
2
Weddell
2
Austral
1
Baffin Bay
1
Bering Shelf
1
Chukchi Shelf
1
Island Bay
1
McMurdo Station
1
Pine Island Bay
1
Ross Ice Shelf
1
Southern Ocean
1
Weddell Sea
1
West Antarctica
1