| Main Ref. | National Register of Lake Surveys, 2006 (Ref. 57534) |
|---|---|
| Name used | Carassius carassius |
| Locality | Lake ÄLTEN |
| Station | FRI-626073-148262-19890929 |
| Year | 1989 |
| Water depth | 4 m |
| Altitude | 106 m |
| Coordinates | In decimal: 56.47, 15.53 |
| Collector | FVOF |
| Identifier | FVOF |