| Impact ID | 6393 |
| Impact Type | Water Quality |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | A dense infestation of Trapa natans in a waterway cuts down on available oxygen and kills fish. |
| Reference | 41886 |
| Great Lakes Region | No |
| Cost | |
| Location | Oswegatchie River, New York |