Geographic location
Antarctic
8
Charcot
8
Drake Passage
8
Goodwin
8
Merrick
8
New Zealand
8
Pacific
8
Ramirez
8
Southern Ocean
8
The Antarctic
Austin
6
Indian
6
Ridley
6
Weddell
6
Weddell Sea
6
Arctic
4
Burton
4
Greenland
4
McMurdo Sound
4
Thurston
4
Alvarez
2
Barents Sea
2
Bering Sea
2
Bouvet
2
Canada
2
Christchurch
2
Christiania
2
Custodio
2
De Gerlache
2
Gerlache
2
Holdfast
2
Hut Point
2
Inaccessible Island
2
Kara Sea
2
Moreton
2
Okhotsk
2
Queensland
2
Sars Seamount
2
Svalbard
2
Tristan
2
Valentine
2
Wilkes Land
2
Wilkinson
2