| 生态系 | 类型 | 状态 | 参考文献 |
|---|---|---|---|
| Great Lakes | Lake | native | 5723 |
| Hudson River | River (basin) | native | 86798 |
| Mackenzie | River (basin) | native | 78982 |
| Mississippi River | River (basin) | native | 5723 |
| Missouri River | River (basin) | native | 5723 |
| Nearctic | Zoogeographic realm | endemic | 5723 |
| Ohio River | River (basin) | native | 86798 |
| Potomac River | River (basin) | native | 86798 |