| Specimen ID | 237248 |
| Group | Fishes |
| Genus | Gymnocephalus |
| Species | cernua |
| Common Name | Ruffe |
| Country | Canada |
| State | ON |
| Locality | Current River near the mouth in Thunder Bay, Ontario, Canada |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lake Superior |
| HUC8 Number | 04180000 |
| HUC10 Name | Nodaway Point-Frontal Lake Superior |
| HUC10 Number | 0418000001 |
| HUC12 Name | Nodaway Point-Frontal Lake Superior |
| HUC12 Number | 041800000102 |
| Map | |
| Collection Day | 29 |
| Collection Month | 8 |
| Collection Year | 2006 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | established |
| Record Type | Personal communication |
| Freshwater/Marine | Freshwater |
| Number Collected | 166 |
