| Main Ref. | National Register of Lake Surveys, 2006 (Ref. 57534) |
|---|---|
| Name used | Gymnocephalus cernuus |
| Locality | Lake ÖSTEN |
| Station | FRI-661730-127741-19830605 |
| Year | 1983 |
| Water depth | 23 m |
| Altitude | 112 m |
| Coordinates | In decimal: 59.62, 11.86 |
| Collector | FINMND17 |
| Identifier | FINMND17 |