| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Adriatic Sea | Sea/Bay/Gulf | native | 2845 |
| Aegean Sea | Sea/Bay/Gulf | native | 128128 |
| Aral Sea | Sea/Bay/Gulf | introduced | 2756 |
| Atlantic Ocean | Sea/Bay/Gulf | native | 96235 |
| Baltic Sea | Sea/Bay/Gulf | native | 2756 |
| Black Sea | Sea/Bay/Gulf | native | 128128 |
| Black Sea - province | Sea/Bay/Gulf | native | 128128 |
| Caspian Sea | Lake | introduced | 2756 |
| German Bight | Sea/Bay/Gulf | native | 104052 |
| Levantine Sea | Sea/Bay/Gulf | native | 128128 |
| Lusitanian | sea/bay/gulf | native | 2845 |
| Mediterranean Sea | Sea/Bay/Gulf | native | 2756 |
| North Sea | Sea/Bay/Gulf | native | 3477 |
| Northern European Seas | Sea/Bay/Gulf | native | 104052 |
| Saharan Upwelling | Sea/Bay/Gulf | native | 2845 |
| Sea of Marmara | Sea/Bay/Gulf | native | 128128 |
| Temperate Northern Atlantic | sea/bay/gulf | native | 2756 |
| Tunisian Plateau/Gulf of Sidra | Sea/Bay/Gulf | native | 2845 |
| Western Mediterranean | Sea/Bay/Gulf | native | 2845 |