| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Atlantic Ocean | Sea/Bay/Gulf | native | 83435 |
| Bounty and Antipodes Islands | Sea/Bay/Gulf | native | 3477 |
| Channels and Fjords of Southern Chile | Sea/Bay/Gulf | native | 83435 |
| Chatham Island | Sea/Bay/Gulf | native | 8121 |
| Magellanic | sea/bay/gulf | native | 83435 |
| Malvinas/Falklands | Sea/Bay/Gulf | native | 83435 |
| Pacific Ocean | Sea/Bay/Gulf | native | 87801 |
| South Orkney Islands | Sea/Bay/Gulf | native | 87340 |
| Southern Ocean | sea/bay/gulf | native | 87340 |
| Strait of Magellan | Sea/Bay/Gulf | native | 83435 |
| Temperate Australasia | sea/bay/gulf | native | 8121 |
| Temperate South America | sea/bay/gulf | native | 83435 |
| Tristan Gough | Sea/Bay/Gulf | native | 87801 |
| Tristan Gough - province | Sea/Bay/Gulf | native | 87801 |