Ascophyllum nodosum
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Os skule | Vestland, Norway | 44 | 1 | 0 | 1995-10-17 |
| Vevang Oppvekstsenter/Avdeling skole | Møre og Romsdal, Norway | 44 | 1 | 0 | 1995-08-31 |
| Vestbygd skole | Nordland, Norway | 43 | 1 | 0 | 1995-10-12 |
| Sunde skole | Agder, Norway | 43 | 1 | 0 | 1995-09-27 |
| Nesøy skole | Nordland, Norway | 42 | 1 | 0 | 1998-09-15 |
| Åndalsnes ungdomsskole | Møre og Romsdal, Norway | 42 | 1 | 0 | 1997-06-11 |
| Grov skole | Troms, Norway | 42 | 1 | 0 | 2019-10-31 |
| Giske skule | Møre og Romsdal, Norway | 41 | 1 | 0 | 1997-09-25 |
| Sigerfjord skole | Nordland, Norway | 41 | 1 | 0 | 1998-10-06 |
| Øyatun skule | Vestland, Norway | 41 | 1 | 0 | 1996-09-25 |
| Melsom videregående skole | Vestfold, Norway | 40 | 1 | 0 | 1998-09-22 |
| Harstad ungdomsskole | Troms, Norway | 39 | 1 | 0 | 1997-10-09 |
| Store Bergan skole | Vestfold, Norway | 39 | 1 | 0 | 2001-08-18 |
| Vatne ungdomsskule | Møre og Romsdal, Norway | 39 | 1 | 0 | 1995-09-18 |
| Haramsøy skule | Møre og Romsdal, Norway | 38 | 1 | 0 | 1994-11-04 |
| Åfarnes Oppvekstsenter/Avd skole | Møre og Romsdal, Norway | 37 | 1 | 0 | 1995-09-27 |
| Valderøy barneskule | Møre og Romsdal, Norway | 37 | 1 | 0 | 1996-10-17 |
| Skjelnan skole | Troms, Norway | 36 | 1 | 0 | 2009-06-11 |
| Kirkevoll skole | Vestfold, Norway | 36 | 1 | 0 | 2001-09-18 |
| Botngård skole | Trøndelag, Norway | 34 | 1 | 0 | 1996-09-18 |
| Vedavågen skole | Rogaland, Norway | 34 | 1 | 0 | 1994-11-25 |
| Skaug Oppvekstsenter/Avd skole | Nordland, Norway | 34 | 1 | 0 | 1994-11-29 |
| Ulstein skule | Møre og Romsdal, Norway | 34 | 1 | 0 | 1994-11-04 |
| Austbø skole | Rogaland, Norway | 33 | 1 | 0 | 1997-10-14 |
| Byskogen skole | Vestfold, Norway | 33 | 1 | 0 | 2000-09-26 |
| Skånevik skule | Vestland, Norway | 33 | 1 | 0 | 1996-10-04 |
| Inndyr skole | Nordland, Norway | 33 | 1 | 0 | 1999-10-11 |
| Kyrkjebø skule | Vestland, Norway | 32 | 1 | 0 | 1998-09-29 |
| Bremsnes skole | Møre og Romsdal, Norway | 31 | 1 | 0 | 1997-10-07 |
| Sodin skole | Trøndelag, Norway | 31 | 1 | 0 | 1995-06-07 |
| Valderøy ungdomsskule | Møre og Romsdal, Norway | 31 | 1 | 0 | 1995-09-15 |
| Skjervøy skole | Trøndelag, Norway | 31 | 1 | 0 | 1996-10-23 |
| Hisøy ungdomsskole | Agder, Norway | 31 | 1 | 0 | 1997-10-02 |
| Midsund skule | Møre og Romsdal, Norway | 31 | 1 | 0 | 1996-09-20 |
| Stavern skole | Vestfold, Norway | 31 | 1 | 0 | 1998-09-23 |
| Bokn skule | Rogaland, Norway | 30 | 1 | 0 | 1998-10-05 |
| Landego skole | Nordland, Norway | 30 | 1 | 0 | 1996-10-01 |
| Stokke ungdomsskole | Vestfold, Norway | 30 | 1 | 0 | 2001-05-08 |
| Hvaler ungdomsskole | Østfold, Norway | 30 | 1 | 0 | 1996-09-25 |
| Vassøy skole | Rogaland, Norway | 29 | 1 | 0 | 1995-10-04 |
| Sortland barneskole | Nordland, Norway | 29 | 1 | 0 | 1996-10-01 |
| Frakkagjerd ungdomsskole | Rogaland, Norway | 29 | 1 | 0 | 1994-11-28 |
| Høgskolen i Agder | Agder, Norway | 29 | 1 | 0 | 1994-12-09 |
| Dysjaland skule | Rogaland, Norway | 29 | 1 | 0 | 1996-09-24 |
| Sandeid skule | Rogaland, Norway | 29 | 1 | 0 | 1997-10-15 |
| Nesheim skole | Agder, Norway | 28 | 1 | 0 | 1998-09-22 |
| Søvik skule | Møre og Romsdal, Norway | 28 | 1 | 0 | 1996-09-19 |
| Strandvik skule/Vinnes skule | Vestland, Norway | 28 | 1 | 0 | 1996-10-03 |
| Roligheden skole Barne-/ungdomstrinnet | Agder, Norway | 27 | 1 | 0 | 1995-09-22 |
| Fiskå skule | Møre og Romsdal, Norway | 26 | 1 | 0 | 1996-10-18 |