Rhizosolenia sp.
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Hadsel videregående skole/Stokmarknes | Nordland, Norway | 2 | 1 | 0 | 1990-06-06 |
| Elverum videregående skole | Innlandet, Norway | 1 | 1 | 0 | 1991-05-31 |
| Eidsvoll videregående skole | Akershus, Norway | 1 | 1 | 0 | 1990-06-07 |
| Os gymnas | Vestland, Norway | 1 | 1 | 0 | 1991-09-12 |