| Specimen ID | 877622 |
| Group | Fishes |
| Genus | Gymnocephalus |
| Species | cernua |
| Common Name | Ruffe |
| State | MI |
| County | Chippewa |
| Locality | Roxbury Creek, approximately 250 m upstream of mouth |
| Mapping Accuracy | Accurate |
| HUC8 Name | Waiska |
| HUC8 Number | 04020203 |
| HUC10 Name | Ankodosh Creek-Frontal Lake Superior |
| HUC10 Number | 0402020301 |
| HUC12 Name | Roxbury Creek-Frontal Lake Superior |
| HUC12 Number | 040202030101 |
| Map | |
| Collection Day | 13 |
| Collection Month | 8 |
| Collection Year | 2015 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | established |
| Comments | Only one voucher photo of YOY with measurement. Sample period was 8/13 to 9/3. |
| Record Type | Personal communication |
| Disposal | Lake Superior State University |
| Freshwater/Marine | Freshwater |
| Number Collected | 18 |
| Year Class | 0 |
| Size | 45 mm TL |
| Number of Juveniles | 1 |
