| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Atlantic Ocean | Sea/Bay/Gulf | native | 4779 |
| Baltic Sea | Sea/Bay/Gulf | native | 36252 |
| Barents Sea Islands basins | River (basin) | native | 59043 |
| Barents Sea river drainages and lakes | River (basin) | native | 59043 |
| Beaufort Sea | Sea/Bay/Gulf | native | 28503 |
| Canadian Eastern Arctic - West Greenland | Sea/Bay/Gulf | native | 4779 |
| Central Arctic | Sea/Bay/Gulf | native | 4779 |
| Chukchi Sea | Sea/Bay/Gulf | native | 118986 |
| Dwina | River (basin) | native | |
| East Bering Sea | Sea/Bay/Gulf | native | 96339 |
| German Bight | Sea/Bay/Gulf | native | |
| Great Lakes | Lake | introduced | 50315 |
| Greenland Sea | Sea/Bay/Gulf | native | 4779 |
| Gulf of Alaska | Sea/Bay/Gulf | native | 95143 |
| Hudson Bay Complex | Sea/Bay/Gulf | native | 37032 |
| Hudson Complex | Sea/Bay/Gulf | native | 124497 |
| Iberian Coastal | Sea/Bay/Gulf | native | 683 |
| Iceland river drainages and lakes | River (basin) | native | 59043 |
| Iceland Shelf and Sea | Sea/Bay/Gulf | native | 37032 |
| Kara Sea | Sea/Bay/Gulf | native | 123027 |
| Labrador - Newfoundland | Sea/Bay/Gulf | native | 37032 |
| Lake Baikal | Lake | native | 593 |
| Mezen' River | River (basin) | native | |
| Nearctic | Zoogeographic realm | native | 27547 |
| North Sea | Sea/Bay/Gulf | native | 683 |
| Northeast U.S. Continental Shelf | Sea/Bay/Gulf | native | 5723 |
| Northern Atlanto-Baltic river drainages and lakes | River (basin) | native | 59043 |
| Northern Bering - Chukchi Seas | Sea/Bay/Gulf | native | 4779 |
| Norwegian Sea | Sea/Bay/Gulf | native | 4779 |
| Novaya Zemlya basins | River (basin) | native | 59043 |
| Pacific Ocean | Sea/Bay/Gulf | native | 95143 |
| Palearctic | Zoogeographic realm | native | 4779 |
| Pechora | River (basin) | native | 59043 |
| St. Lawrence | River (basin) | native | 37032 |
| Svalbard basins | River (basin) | native | 59043 |
| Torne River | River (basin) | native | 59043 |