| Specimen ID | 324372 |
| Group | Fishes |
| Genus | Gymnocephalus |
| Species | cernua |
| Common Name | Ruffe |
| State | MI |
| County | Keweenaw |
| Locality | Lake Superior [west of Keweenaw Peninsula] |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lake Superior |
| HUC8 Number | 04180000 |
| HUC10 Name | Lake Superior |
| HUC10 Number | 0418000002 |
| HUC12 Name | Lake Superior |
| HUC12 Number | 041800000200 |
| Map | |
| Collection Day | 12 |
| Collection Month | 8 |
| Collection Year | 2012 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | established |
| Record Type | Personal communication |
| Freshwater/Marine | Freshwater |
| Number Collected | 1 |
| Size | 42 mm |
