| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Aegean Sea | Sea/Bay/Gulf | native | 2684 |
| Arctic | Sea/Bay/Gulf | native | 1667 |
| Arctic - province | Sea/Bay/Gulf | native | 1667 |
| Atlantic Ocean | Sea/Bay/Gulf | native | 1667 |
| Baffin Bay | Sea/Bay/Gulf | native | 3448 |
| Baffin Bay - Davis Strait | Sea/Bay/Gulf | native | 3448 |
| Baltic Sea | Sea/Bay/Gulf | native | 96235 |
| Barents Sea | Sea/Bay/Gulf | native | 125439 |
| Beaufort Sea | Sea/Bay/Gulf | native | 3448 |
| Beaufort Sea - continental coast and shelf | Sea/Bay/Gulf | native | 3448 |
| Hudson Bay Complex | Sea/Bay/Gulf | native | 3448 |
| Iberian Sea | Sea/Bay/Gulf | native | 123426 |
| Mediterranean Sea | Sea/Bay/Gulf | native | 2684 |
| North and East Barents Sea | Sea/Bay/Gulf | native | 2952 |
| North Sea | Sea/Bay/Gulf | native | 83653 |
| Northern European Seas | Sea/Bay/Gulf | native | 8593 |
| Northern Norway and Finnmark | Sea/Bay/Gulf | native | 124107 |
| Norwegian Sea | Sea/Bay/Gulf | native | 124107 |
| Temperate Northern Atlantic | sea/bay/gulf | native | 2684 |