| Impact ID | 8341 |
| Impact Type | Recreation |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Argulus japonicus (Japanese fishlouse) parasitizes introduced channel catfish (Ictalurus punctatus) in Tichigan Lake, which adjoins the Fox River in Wisconsin as part of the Lake Michigan drainage system. |
| Reference | 16780 |
| Cost | |
| Location | Tichigan Lake, Wisconsin, USA |