| Impact ID | 4017 |
| Impact Type | Water Quality |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Blooms of blue-green algae have been observed in lakes where start stonewort (Nitellopsis obtusa) is abundant. |
| Reference | 19736 |
| Great Lakes Region | Yes |
| Cost | |
| Location | Michigan, USA |
