| Specimen ID | 644328 |
| Group | Fishes |
| Genus | Gymnocephalus |
| Species | cernua |
| Common Name | Ruffe |
| State | MI |
| County | Chippewa |
| Locality | Tahquamenon River, 100 m downstream from boat launch |
| 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 | 5 |
| Collection Month | 5 |
| Collection Year | 2014 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water | dispersed |
| Status | established |
| Comments | Water depth 1-1.5 m. |
| Record Type | Personal communication |
| Verifier | F. Zomer |
| Freshwater/Marine | Freshwater |
| Number Collected | 12 |
