| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Colorado River | River (basin) | native | 38738 |
| Ebro | River (basin) | introduced | 59043 |
| Great Lakes | Lake | native | 1739 |
| Missouri River | River (basin) | native | 78789 |
| Nearctic | Zoogeographic realm | endemic | 276 |
| Ombrone | River (basin) | introduced | 45688 |
| Palearctic | Zoogeographic realm | introduced | 1739 |
| St. Lawrence | River (basin) | native | 79012 |
| Tagus | River (basin) | native | 59043 |