| 生态系 | 类型 | 状态 | 参考文献 |
|---|---|---|---|
| Great Lakes | Lake | native | 10294 |
| Mississippi River | River (basin) | native | 10294 |
| Missouri River | River (basin) | native | 78789 |
| Nearctic | Zoogeographic realm | native | 5723 |
| Neotropical | Zoogeographic realm | native | 5723 |
| St. Lawrence | River (basin) | native | 10294 |