Geographic location
Southern Ocean
20
Antarctic
5
Austral
5
Patagonia
5
Drake Passage
4
Scotia Sea
4
South Scotia Ridge
4
Weddell
3
Weddell Sea
3
Gough
2
Indian
2
The Antarctic
2
Tristan
2
Bellingshausen Sea
1
Jiménez
1
Laplace
1
Las Palmas
1
Pacific
1
Ross Sea
1
Sandwich Islands
1
Saunders
1
Saunders Island
1
South Georgia
1
South Sandwich Islands
1