Localities: Kverndammen: 14.10.1992
| Reporter: | Porsgrunn videregående skole |
| Site: | Kverndammen () |
| Date: | 1992-10-14 |
| Activity: | VANDA: Bunndyr |
Observation
| Species: | Gyraulus acronicus |
| Number: | 1 |
| Original: | Ja |
| Species: | Notonecta glauca |
| Number: | 2 |
| Original: | Ja |
| Species: | Lymnaea peregra |
| Number: | 1 |
| Original: | Ja |
| Species: | Aeshna sp. |
| Number: | 4 |
| Original: | Ja |
| Species: | Hyphydrus ovatus |
| Number: | 1 |
| Original: | Ja |
| Species: | fossarum |
| Number: | 9 |
| Original: | Ja |
| Species: | juncea |
| Number: | 1 |
| Original: | Ja |