| Impact ID | 1957 |
| Impact Type | Disease/Parasites/Toxicity |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Faxonius virilis has altered the food web in areas it is introduced, as it becomes a predator, changing the concentration of mercury present in walleye. |
| Reference | 33460 |
| Great Lakes Region | No |
| Cost | |
| Location | |
