Localities: Kruktjønna: 31.05.1991
| Reporter: | Fosen videregående skole |
| Site: | Kruktjønna () |
| Date: | 1991-05-31 |
| Activity: | VANDA: Bunndyr |
Observation
| Species: | Gerris lacustris |
| Number: | 1 |
| Original: | Ja |
| Species: | Coenagrion sp. hastulatum gr. |
| Number: | 1 |
| Original: | Ja |
| Species: | Coenagrionidae indet. |
| Number: | 1 |
| Original: | Ja |
| Species: | Corixa punctata |
| Number: | 1 |
| Original: | Ja |
| Species: | Corixa punctata |
| Number: | 1 |
| Original: | Ja |
| Species: | Cymatia bonsdorffii |
| Number: | 1 |
| Original: | Ja |
| Species: | Gyrinus minutus |
| Number: | 1 |
| Original: | Ja |
| Species: | Leptophlebia sp. |
| Number: | 1 |
| Original: | Ja |
| Species: | Leptophlebia vespertina |
| Number: | 1 |
| Original: | Ja |
| Species: | Limnephilus sp. |
| Number: | 1 |
| Original: | Ja |
| Species: | Pyrrhosoma nymphula |
| Number: | 2 |
| Original: | Ja |