Localities: Tjennane: 15.09.1993
| Reporter: | Porsgrunn videregående skole |
| Site: | Tjennane () |
| Date: | 1993-09-15 |
| Activity: | VANDA: Dyreplankton |
Observation
| Species: | Bosmina longispina |
| Number: | 1 |
| Original: | Ja |
| Species: | Ceriodaphnia sp. |
| Number: | 3 |
| Original: | Ja |
| Species: | Macrocyclops albidus |
| Number: | 1 |
| Original: | Ja |