| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Atlantic Ocean | Sea/Bay/Gulf | native | 4499 |
| Balearic Islands | Sea/Bay/Gulf | native | 95727 |
| Canary Current | Sea/Bay/Gulf | native | 4499 |
| Cantabrian Sea | Sea/Bay/Gulf | native | 57747 |
| Cape Verde | Sea/Bay/Gulf | questionable | 94080 |
| Celtic-Biscay Shelf | Sea/Bay/Gulf | native | 35388 |
| Galician Shelf | Sea/Bay/Gulf | native | 57747 |
| German Bight | Sea/Bay/Gulf | native | |
| Iberian Coastal | Sea/Bay/Gulf | native | 35388 |
| Irish Sea | Sea/Bay/Gulf | native | 5980 |
| Mediterranean Sea | Sea/Bay/Gulf | native | 3397 |
| North Sea | Sea/Bay/Gulf | native | 5980 |
| Tagus | River (basin) | native | 51031 |