Himanthalia elongata (Sea Thong)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Sandnes skole | Agder, Norway | 7 | 1 | 7 | 2017-11-01 |
| Samfundets skole Egersund | Rogaland, Norway | 3 | 1 | 0 | 2001-09-04 |
| Skjelnan skole | Troms, Norway | 2 | 1 | 0 | 2008-06-13 |
| Eide ungdomsskole | Møre og Romsdal, Norway | 1 | 1 | 0 | 1997-09-30 |
| Ågotnes skule | Vestland, Norway | 1 | 1 | 1 | 2014-09-24 |
| Skarbø skule | Møre og Romsdal, Norway | 1 | 1 | 0 | 1997-10-07 |