| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Adriatic Sea | Sea/Bay/Gulf | native | 137580 |
| Aegean Sea | Sea/Bay/Gulf | native | 2684 |
| Atlantic Ocean | Sea/Bay/Gulf | native | 137914 |
| Azores Islands | Sea/Bay/Gulf | native | 137914 |
| Black Sea | Sea/Bay/Gulf | native | 114530 |
| Canary Current | Sea/Bay/Gulf | native | 78075 |
| Cape Verde | Sea/Bay/Gulf | native | 137915 |
| Celtic Seas | Sea/Bay/Gulf | native | 137917 |
| Celtic-Biscay Shelf | Sea/Bay/Gulf | questionable | 78075 |
| Gulf of Guinea | sea/bay/gulf | native | 78075 |
| Gulf of Guinea Central | Sea/Bay/Gulf | native | 78075 |
| Iberian Coastal | Sea/Bay/Gulf | native | 78075 |
| Ionian Sea | Sea/Bay/Gulf | native | 2684 |
| Levantine Sea | Sea/Bay/Gulf | native | 114530 |
| Lusitanian | sea/bay/gulf | questionable | 124 |
| Mediterranean Sea | Sea/Bay/Gulf | native | 74416 |
| North Sea | Sea/Bay/Gulf | native | 78075 |
| Norwegian Sea | Sea/Bay/Gulf | native | 78075 |
| Saharan Upwelling | Sea/Bay/Gulf | native | 124 |
| Sahelian Upwelling | Sea/Bay/Gulf | native | 78075 |
| Sea of Marmara | Sea/Bay/Gulf | native | 114530 |
| South European Atlantic Shelf | Sea/Bay/Gulf | native | 137917 |
| Temperate Northern Atlantic | sea/bay/gulf | native | 74416 |
| Tropical Atlantic | sea/bay/gulf | native | 78075 |
| Tunisian Plateau/Gulf of Sidra | Sea/Bay/Gulf | native | 74416 |
| West African Transition | sea/bay/gulf | native | 78075 |
| Western Mediterranean | Sea/Bay/Gulf | native | 74416 |
| Western Turkey | River (basin) | native | 114530 |