Hydriomena
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|
| Frode Falkenberg | Vestland, Norway | 64 | 2 | 3 | 2009-09-12 |
| Svein Sellevold Bekkum | Nordland, Norway | 36 | 3 | 7 | 2009-09-17 |
| Michael Fredriksen | Vestland, Norway | 29 | 1 | 2 | 2009-08-28 |
| Olav Krogsæter | Vestland, Norway | 22 | 1 | 6 | 2009-09-15 |
| Rune Voie | Vestland, Norway | 18 | 1 | 1 | 2009-08-31 |
| Kjell Mjølsnes | Rogaland, Norway | 14 | 1 | 0 | 2009-08-22 |
| Alf Tore Mjøs | Rogaland, Norway | 12 | 1 | 4 | 2009-08-26 |
| Even Mjaaland | Rogaland, Norway | 5 | 1 | 1 | 2009-09-06 |
| John Grønning | Rogaland, Norway | 3 | 2 | 1 | 2009-08-11 |
| Arild Breistøl | Vestland, Norway | 3 | 1 | 0 | 2009-09-04 |
| Lars Erik Johannessen | Østfold, Norway | 3 | 1 | 2 | 2009-08-07 |
| Marte Falkenberg | Vestland, Norway | 3 | 1 | 0 | 2009-07-21 |
| Dag O. Bollingmo | Trøndelag, Norway | 3 | 2 | 1 | 2009-08-02 |
| Pål Mølnvik | Trøndelag, Norway | 2 | 1 | 1 | 2009-06-17 |
| Egil Frantzen | Vestland, Norway | 1 | 1 | 0 | 2009-08-26 |
| John Skartveit | Vestland, Norway | 1 | 1 | 1 | 2009-08-13 |
| Lars-Henrik Jensen | Vestland, Norway | 1 | 1 | 1 | 2009-09-19 |
| Trond Einar Brobakk | Trøndelag, Norway | 1 | 1 | 0 | 2009-08-09 |
| Leiv Tommas Haugen | Rogaland, Norway | 1 | 1 | 0 | 2009-09-06 |