Localities: Trytetjønnet: 08.09.1989
| Reporter: | Numedal videregående skole |
| Site: | Trytetjønnet () |
| Date: | 1989-09-08 |
| Activity: | VANDA: Bunndyr |
Observation
| Species: | Chironomus sp. |
| Number: | 1 |
| Original: | Ja |
| Species: | Lumbriculus variegatus |
| Number: | 1 |
| Original: | Ja |
| Species: | Nebrioporus depressus |
| Number: | 1 |
| Original: | Ja |
| Species: | Sialis lutaria |
| Number: | 1 |
| Original: | Ja |