| Specimen ID | 242945 |
| Group | Fishes |
| Genus | Gymnocephalus |
| Species | cernua |
| Common Name | Ruffe |
| State | WI |
| County | Marinette |
| Locality | Green Bay of Lake Michigan about 1.5 miles SE of Marinette |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lake Michigan |
| HUC8 Number | 04190000 |
| HUC10 Name | Lake Michigan |
| HUC10 Number | 0419000002 |
| HUC12 Name | Lake Michigan |
| HUC12 Number | 041900000200 |
| Map | |
| Collection Day | 15 |
| Collection Month | 6 |
| Collection Year | 2007 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | established |
| Record Type | Personal communication |
| Verifier | Carol Stepien, U. of Toledo |
| Freshwater/Marine | Freshwater |
| Number Collected | 1 |
