| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Arctic Complex | River (basin) | native | 117245 |
| Great Lakes | Lake | native | 42845 |
| Hudson Bay Complex | River (basin) | native | 117245 |
| Mississippi Complex | River (basin) | native | 81264 |
| Mississippi River | River (basin) | native | 117245 |
| Missouri River | River (basin) | native | 37032 |
| Nearctic | Zoogeographic realm | endemic | 3881 |
| Nelson-Saskatchewan | River (basin) | native | 37032 |
| St. Lawrence | River (basin) | native | 117245 |
| Tennessee River | River (basin) | native | 37032 |