Localities: Arkavatnet: 12.09.1991
| Reporter: | Vardafjell videregående skole |
| Site: | Arkavatnet () |
| Date: | 1991-09-12 |
| Activity: | VANDA: Bunndyr |
Observation
| Species: | Agrypnia varia |
| Number: | 3 |
| Original: | Ja |
| Species: | Cloeon simile |
| Number: | 1 |
| Original: | Ja |
| Species: | Coenagrionidae indet. |
| Number: | 1 |
| Original: | Ja |
| Species: | Hydroporus obscurus |
| Number: | 1 |
| Original: | Ja |
| Species: | Hydroporus palustris |
| Number: | 1 |
| Original: | Ja |
| Species: | Lumbriculus variegatus |
| Number: | 1 |
| Original: | Ja |
| Species: | Polycentropus flavomaculatus |
| Number: | 3 |
| Original: | Ja |
| Species: | Polycentropus irroratus |
| Number: | 1 |
| Original: | Ja |
| Species: | Sigara dorsalis |
| Number: | 1 |
| Original: | Ja |
| Species: | Subsigara scotti |
| Number: | 11 |
| Original: | Ja |