| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Atlantic Ocean | Sea/Bay/Gulf | native | 4674 |
| Baltic Sea | Sea/Bay/Gulf | questionable | 6114 |
| Celtic-Biscay Shelf | Sea/Bay/Gulf | native | 35388 |
| German Bight | Sea/Bay/Gulf | native | |
| Iberian Coastal | Sea/Bay/Gulf | native | 35388 |
| Irish Sea | Sea/Bay/Gulf | native | 4674 |
| Mediterranean Sea | Sea/Bay/Gulf | introduced | 43448 |
| North Sea | Sea/Bay/Gulf | native | 4674 |
| Norwegian Sea | Sea/Bay/Gulf | native | 4674 |