Naviculaceae
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Vardafjell videregående skole | Rogaland, Norway | 3 | 3 | 0 | 1989-09-07 |
| Osterøy vidaregåande skule | Vestland, Norway | 1 | 1 | 0 | 1990-09-20 |
| Ås videregående skole | Akershus, Norway | 1 | 1 | 0 | 1990-09-17 |
| Hamar katedralskole | Innlandet, Norway | 1 | 1 | 0 | 1990-06-02 |
| Haugesund Maritime Tekniske videregående skole | Rogaland, Norway | 1 | 1 | 0 | 1990-06-07 |