Localities: Korssjøen: 08.09.1992
| Reporter: | Holmestrand videregående skole |
| Site: | Korssjøen () |
| Date: | 1992-09-08 |
| Activity: | VANDA: Bunndyr |
Observation
| Species: | Physa fontinalis |
| Number: | 1 |
| Original: | Ja |
| Species: | Erpobdella octoculata |
| Number: | 1 |
| Original: | Ja |
| Species: | Ephemera vulgata |
| Number: | 11 |
| Original: | Ja |
| Species: | Gammarus lacustris |
| Number: | 3 |
| Original: | Ja |
| Species: | Caenis horaria |
| Number: | 12 |
| Original: | Ja |
| Species: | Cloeon dipterum |
| Number: | 5 |
| Original: | Ja |
| Species: | Erythromma najas |
| Number: | 1 |
| Original: | Ja |
| Species: | Leptophlebia vespertina |
| Number: | 16 |
| Original: | Ja |
| Species: | Micronecta sp. cf. poweri |
| Number: | 5 |
| Original: | Ja |
| Species: | Stylaria lacustris |
| Number: | 3 |
| Original: | Ja |