Localities: Øymarksjøen: 29.05.1997
| Reporter: | Askim videregående skole |
| Site: | Øymarksjøen () |
| Date: | 1997-05-29 |
| Activity: | VANDA: Bunndyr |
Observation
| Species: | Gerris lacustris |
| Number: | 2 |
| Species: | Gerris argentatus |
| Number: | 1 |
| Species: | Gerris paludum |
| Number: | 1 |
| Species: | Gerris rufoscutellatus |
| Number: | 2 |
| Species: | Gyrinus aeratus |
| Number: | 2 |
| Species: | Laccobius minutus |
| Number: | 1 |
| Species: | Rhantus exsoletus |
| Number: | 3 |
| Species: | Sigara striata |
| Number: | 2 |
| Species: | falleni |
| Number: | 5 |