Geographic location
Okhotsk
6
Pacific
Arctic
4
Austin
4
Bering Sea
4
Greenland
4
Alvarez
2
Antarctic
2
Barents Sea
2
Bouvet
2
British Columbia
2
Brundage
2
Burton
2
Canada
2
Charcot
2
Christiania
2
Custodio
2
Drake Passage
2
Dundas
2
Goodwin
2
Grace Point
2
Gulf of Alaska
2
Holdfast
2
Indian
2
Kamchatka Peninsula
2
Kitasu Bay
2
Kol’
2
Kust
2
Merrick
2
Minstrel
2
Murmansk
2
New Zealand
2
Portland Canal
2
Ramirez
2
Ridley
2
Southern Ocean
2
Stefansson
2
Svalbard
2
The Antarctic
2
Thurston
2
Tristan
2
Weddell
2
Weddell Sea
2
White Sea
2
Winter Inlet
2