| Main Ref. | National Register of Lake Surveys, 2006 (Ref. 57534) |
|---|---|
| Name used | Gymnocephalus cernuus |
| Locality | Lake BYSJÖN |
| Station | FRI-658086-130264-19850819 |
| Year | 1985 |
| Water depth | 12 m |
| Altitude | 123 m |
| Coordinates | In decimal: 59.30, 12.34 |
| Collector | Värmland Province Fishery Unit |
| Identifier | Värmland Province Fishery Unit |