| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Mississippi River | River (basin) | native | 5723 |
| Missouri River | River (basin) | native | 78789 |
| Nearctic | Zoogeographic realm | endemic | 5723 |
| Rio Grande | River (basin) | native | 5723 |
| Rio Grande/Bravo Complex | River (basin) | native | 81264 |
| Tennessee River | River (basin) | native | 10294 |