Localities: Lauvtjønna: 04.09.1992
| Reporter: | Malvik videregående skole |
| Site: | Lauvtjønna () |
| Date: | 1992-09-04 |
| Activity: | VANDA: Bunndyr |
Observation
| Species: | Gerris lacustris |
| Number: | 17 |
| Original: | Ja |
| Species: | Lumbricidae indet. |
| Number: | 1 |
| Original: | Ja |
| Species: | Lymnaea peregra |
| Number: | 2 |
| Original: | Ja |
| Species: | Aeshna sp. |
| Number: | 9 |
| Original: | Ja |
| Species: | Callicorixa producta |
| Number: | 2 |
| Original: | Ja |
| Species: | Coenagrion sp. hastulatum gr. |
| Number: | 1 |
| Original: | Ja |
| Species: | Enallagma cyathigerum |
| Number: | 23 |
| Original: | Ja |
| Species: | Gerridae indet. |
| Number: | 10 |
| Original: | Ja |
| Species: | Gerris lateralis |
| Number: | 1 |
| Original: | Ja |
| Species: | Haliplus confinis |
| Number: | 1 |
| Original: | Ja |
| Species: | Ilybius fuliginosus |
| Number: | 1 |
| Original: | Ja |
| Species: | Macrocyclops fuscus |
| Number: | 2 |
| Original: | Ja |
| Species: | Ophryoxus gracilis |
| Number: | 1 |
| Original: | Ja |
| Species: | Retrocorixa semistriata |
| Number: | 3 |
| Original: | Ja |
| Species: | Subsigara cf. distincta |
| Number: | 1 |
| Original: | Ja |
| Species: | juncea |
| Number: | 3 |
| Original: | Ja |