| Main Ref. | National Register of Lake Surveys, 2006 (Ref. 57534) |
|---|---|
| Name used | Gymnocephalus cernuus |
| Locality | Lake STORA ENVÄTTERN |
| Station | FRI-655587-158869-19830503 |
| Year | 1983 |
| Water depth | 11 m |
| Altitude | 62 m |
| Coordinates | In decimal: 59.12, 17.36 |
| Collector | Stockholm Province Fishery Unit |
| Identifier | Stockholm Province Fishery Uni |