Localities: Kverndammen: 05.06.1990
| Reporter: | Porsgrunn videregående skole |
| Site: | Kverndammen () |
| Date: | 1990-06-05 |
| Activity: | VANDA: Planteplankton |
Observation
| Species: | Cyclotella sp. |
| Number: | 1 |
| Original: | Ja |
| Species: | Mallomonas sp. |
| Number: | 1 |
| Original: | Ja |
| Species: | Oocystis sp. |
| Number: | 1 |
| Original: | Ja |
| Species: | Sphaerocystis cf. schroeteri |
| Number: | 1 |
| Original: | Ja |