| Impact ID | 3466 |
| Impact Type | Habitat Alteration |
| Study Type | Anecdotal |
| Study Location | Field |
| Impact Description | The dense mats formed by Myriophyllum spicatum in Shawano Lake, Wisconsin might affect use by waterfowl. |
| Reference | 16463 |
| Great Lakes Region | No |
| Cost | |
| Location | |
