| Hệ sinh thái | Dạng (Kiểu) | Hiện trạng | Tài liệu tham khảo |
|---|---|---|---|
| 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 |