| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Agulhas | sea/bay/gulf | native | 1134 |
| Agulhas Bank | Sea/Bay/Gulf | native | 1134 |
| Amsterdam - St. Paul - province | Sea/Bay/Gulf | native | 87398 |
| Amsterdam-St Paul | Sea/Bay/Gulf | native | 87398 |
| Antarctica | Sea/Bay/Gulf | native | 3435 |
| Atlantic Ocean | Sea/Bay/Gulf | native | 1134 |
| Bassian | Sea/Bay/Gulf | native | 87398 |
| Benguela | sea/bay/gulf | native | 2588 |
| Channels and Fjords of Southern Chile | Sea/Bay/Gulf | native | 87801 |
| Chiloense | Sea/Bay/Gulf | native | 87801 |
| Continental High Antarctic | sea/bay/gulf | native | 1756 |
| Crozet Islands | Sea/Bay/Gulf | native | 1756 |
| East Antarctic Wilkes Land | Sea/Bay/Gulf | native | 1756 |
| Indian Ocean | Sea/Bay/Gulf | native | 1134 |
| Lusitanian | sea/bay/gulf | native | 87801 |
| Macquarie Island | Sea/Bay/Gulf | native | 1662 |
| Magellanic | sea/bay/gulf | native | 87801 |
| Malvinas/Falklands | Sea/Bay/Gulf | native | 87398 |
| North Patagonian Gulfs | Sea/Bay/Gulf | native | 1134 |
| Northern European Seas | Sea/Bay/Gulf | introduced | 74339 |
| Pacific Ocean | Sea/Bay/Gulf | native | 1134 |
| Patagonian Shelf | Sea/Bay/Gulf | native | 87801 |
| South Georgia | Sea/Bay/Gulf | native | 3435 |
| South Orkney Islands | Sea/Bay/Gulf | native | 3435 |
| South Shetland Islands | Sea/Bay/Gulf | native | 1753 |
| Southeast Australian Shelf | Sea/Bay/Gulf | native | 1134 |
| Southern Ocean | sea/bay/gulf | native | 3435 |
| Strait of Magellan | Sea/Bay/Gulf | native | 87801 |
| Subantarctic Islands | sea/bay/gulf | native | 1756 |
| Temperate Australasia | sea/bay/gulf | native | 1134 |
| Temperate South America | sea/bay/gulf | native | 1134 |
| Temperate Southern Africa | sea/bay/gulf | native | 1134 |
| Tristan Gough | Sea/Bay/Gulf | native | 1756 |
| Tristan Gough - province | Sea/Bay/Gulf | native | 1756 |
| Warm Temperate Southeastern Pacific | sea/bay/gulf | native | 3435 |
| Weddell Sea | Sea/Bay/Gulf | native | 2588 |