Localities: Tretjønnet: 26.06.1990
| Reporter: | Gimle videregående skole |
| Site: | Tretjønnet () |
| Date: | 1990-06-26 |
| Activity: | VANDA: Dyreplankton |
Observation
| Species: | Alonella nana |
| Number: | 3 |
| Original: | Ja |
| Species: | Chydorus sphaericus |
| Number: | 1 |
| Original: | Ja |
| Species: | Ophryoxus gracilis |
| Number: | 1 |
| Original: | Ja |