| Impact ID | 8019 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | There was a 95% decline in submerged vegetation species below mats of common frogbit (Hydrocharis morsus-ranae). |
| Reference | 35244 |
| Great Lakes Region | No |
| Cost | |
| Location | |
