Localities: Midsjøvannet: 19.09.1991
| Reporter: | Ski videregående skole |
| Site: | Midsjøvannet () |
| Date: | 1991-09-19 |
| Activity: | VANDA: Bunndyr |
Observation
| Species: | Gerris lacustris |
| Number: | 2 |
| Original: | Ja |
| Species: | Corixidae indet. |
| Number: | 1 |
| Original: | Ja |
| Reporter: | Ski videregående skole |
| Site: | Midsjøvannet () |
| Date: | 1991-09-19 |
| Activity: | VANDA: Bunndyr |
| Species: | Gerris lacustris |
| Number: | 2 |
| Original: | Ja |
| Species: | Corixidae indet. |
| Number: | 1 |
| Original: | Ja |