| परितंत्र | प्रकार | दर्जा | संदर्भ |
|---|---|---|---|
| Atlantic Ocean | Sea/Bay/Gulf | native | 8593 |
| Baltic Sea | Sea/Bay/Gulf | native | 128574 |
| Mediterranean Sea | Sea/Bay/Gulf | native | 85339 |
| North Sea | Sea/Bay/Gulf | native | 3123 |
| Northern European Seas | Sea/Bay/Gulf | native | 8593 |
| Temperate Northern Atlantic | sea/bay/gulf | native | 3123 |