Geographic location
Pacific
11
Antarctic
6
Southern Ocean
6
Arctic
3
The Antarctic
3
Weddell
3
Drake Passage
2
King George Island
2
Marian
2
Marian Cove
2
Maxwell Bay
2
South Shetland Islands
2
Weddell Sea
2
West Antarctica
2
Amundsen Sea
1
East Antarctic Ice Sheet
1
Greenland
1
Indian
1
Norwegian Sea
1
Okhotsk
1
Ross Sea
1