Ascophyllum nodosum
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Åset skole | Trøndelag, Norway | 11 | 1 | 0 | 1994-12-05 |
| Horten videregående skole/Avd Skippergata | Vestfold, Norway | 11 | 1 | 0 | 1998-10-08 |
| Ringstad skule | Møre og Romsdal, Norway | 10 | 1 | 0 | 1993-10-08 |
| Sola skole | Rogaland, Norway | 10 | 1 | 0 | 1995-09-06 |
| Håkvik barneskole | Nordland, Norway | 10 | 1 | 0 | 1996-10-09 |
| Kongseik ungdomsskole | Vestfold, Norway | 10 | 1 | 0 | 1996-09-25 |
| Føynland skole | Vestfold, Norway | 10 | 1 | 0 | 2018-09-07 |
| Mellomhagen ungdomsskole | Vestfold, Norway | 10 | 1 | 0 | 1996-10-16 |
| Stord ungdomsskule | Vestland, Norway | 10 | 1 | 0 | 1993-08-31 |
| Meløy videregående skole/Avd Inndyr | Nordland, Norway | 10 | 1 | 0 | 1996-04-16 |
| Vormedal ungdomsskole | Rogaland, Norway | 10 | 1 | 0 | 1995-10-04 |
| Rygjabø vidaregåande skole | Rogaland, Norway | 10 | 1 | 0 | 1994-12-20 |
| Dalsbygda skule | Møre og Romsdal, Norway | 10 | 1 | 0 | 1997-09-22 |
| Kvinnherad vidaregåande skule | Vestland, Norway | 9 | 1 | 6 | 2015-08-31 |
| Tangvall skole | Agder, Norway | 9 | 1 | 0 | 1993-10-21 |
| Farsund ungdomsskole | Agder, Norway | 9 | 1 | 0 | 1994-06-27 |
| Hauge skole | Rogaland, Norway | 9 | 1 | 0 | 1994-12-01 |
| Sandhornøy skole avd skole | Nordland, Norway | 9 | 1 | 0 | 1994-10-17 |
| Brekke skule | Vestland, Norway | 9 | 1 | 0 | 1993-09-01 |
| Nidarvoll skole | Trøndelag, Norway | 9 | 1 | 0 | 2017-09-01 |
| Trondheim katedralskole | Trøndelag, Norway | 9 | 1 | 6 | 2021-09-10 |
| Sentrum skole | Vestfold, Norway | 9 | 1 | 0 | 1997-09-17 |
| Fjordtun skole | Finnmark, Norway | 9 | 1 | 0 | 1993-11-12 |
| Leonie Johann | Nordland, Norway | 9 | 1 | 0 | 2014-10-23 |
| Solerød Oppvekstsenter | Vestfold, Norway | 9 | 1 | 0 | 1998-09-21 |
| Bore ungdomsskule | Rogaland, Norway | 8 | 1 | 0 | 1993-09-01 |
| Nærøy ungdomsskole | Trøndelag, Norway | 8 | 1 | 0 | 2016-09-09 |
| Tananger ungdomsskole | Rogaland, Norway | 8 | 1 | 0 | 1995-09-08 |
| Indre Hafslo skule | Vestland, Norway | 8 | 1 | 0 | 1996-10-18 |
| Gottesjord skole | Troms, Norway | 8 | 1 | 0 | 1993-10-26 |
| Selvik skole | Vestfold, Norway | 8 | 1 | 0 | 1998-09-10 |
| Horten videregående skole/Avd Bekkegata | Vestfold, Norway | 8 | 1 | 0 | 1993-11-29 |
| Talgje skule | Rogaland, Norway | 8 | 1 | 0 | 2000-06-05 |
| Holvika ungdomsskole | Agder, Norway | 8 | 1 | 0 | 1994-11-04 |
| Skarbøvik ungdomsskole | Møre og Romsdal, Norway | 8 | 1 | 0 | 1995-10-27 |
| Øresvik skole | Nordland, Norway | 8 | 1 | 0 | 1995-10-26 |
| Tertnes skole | Vestland, Norway | 8 | 1 | 0 | 2019-05-28 |
| Frostvedt skole | Vestfold, Norway | 8 | 1 | 0 | 1998-10-06 |
| Tjøme ungdomsskole | Vestfold, Norway | 8 | 1 | 0 | 1994-11-01 |
| Kleppestø barneskole | Vestland, Norway | 8 | 1 | 0 | 1993-09-30 |
| Sande skole | Vestfold, Norway | 8 | 1 | 0 | 1995-09-28 |
| Hinna skole | Rogaland, Norway | 7 | 1 | 0 | 1993-10-25 |
| Stend vidaregåande skule | Vestland, Norway | 7 | 1 | 0 | 1996-09-27 |
| Nord-Vedstrand skole | Nordland, Norway | 7 | 1 | 0 | 1994-11-29 |
| Haga skole | Rogaland, Norway | 7 | 1 | 0 | 1993-09-28 |
| Svelvik ungdomsskole | Buskerud, Norway | 7 | 1 | 0 | 1995-10-09 |
| Nærsnes barneskole | Akershus, Norway | 7 | 1 | 0 | 1996-09-16 |
| Framnes skole | Vestfold, Norway | 7 | 1 | 0 | 1996-09-25 |
| Teigar ungdomsskole | Vestfold, Norway | 7 | 1 | 0 | 1995-10-01 |
| Risør barneskole | Agder, Norway | 7 | 1 | 0 | 1993-09-01 |