| Main Ref. | National Register of Lake Surveys, 2006 (Ref. 57534) |
|---|---|
| Name used | Gymnocephalus cernuus |
| Locality | Lake HALASJÖN |
| Station | FRI-624037-145086-19801001 |
| Year | 1980 |
| Water depth | 12 m |
| Altitude | 40 m |
| Coordinates | In decimal: 56.29, 15.01 |
| Collector | FINMND10 |
| Identifier | FINMND10 |