| Impact ID | 3839 |
| Impact Type | Other |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | broadly defined as commensalism in which Proterorhinus marmoratus (semilunaris) benefits from Potamogeton crispus |
| Reference | 13595 |
| Great Lakes Region | Yes |
| Cost | |
| Location | Great Lakes |
