Cerastoderma edule
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Sandgotna skole | Vestland, Norway | 46 | 1 | 13 | 2020-06-12 |
| Mathopen skole | Vestland, Norway | 25 | 1 | 17 | 2020-10-13 |
| Mosterøy skole | Rogaland, Norway | 7 | 1 | 2 | 2021-09-22 |
| Kvinnherad vidaregåande skule | Vestland, Norway | 7 | 1 | 7 | 2014-06-05 |
| Hoppern skole | Østfold, Norway | 7 | 1 | 2 | 2014-08-28 |
| Friluftsrådet Sør | Agder, Norway | 6 | 1 | 6 | 2014-09-04 |
| Ytrebygda skole | Vestland, Norway | 4 | 1 | 1 | 2020-06-04 |
| Fagerholt skole | Agder, Norway | 3 | 1 | 0 | 2021-08-31 |
| Ytre Namdal videregående skole | Trøndelag, Norway | 3 | 1 | 3 | 2020-10-29 |
| Nidarvoll skole | Trøndelag, Norway | 3 | 1 | 0 | 2017-09-01 |
| Flaktveit skole | Vestland, Norway | 3 | 1 | 3 | 2015-06-04 |
| Universitetet i Tromsø | Troms, Norway | 3 | 1 | 3 | 2014-08-29 |
| Porsgrunn videregående skole | Telemark, Norway | 3 | 1 | 3 | 2013-05-13 |
| Tofte skole | Akershus, Norway | 3 | 1 | 0 | 2020-09-04 |
| Tjøme ungdomsskole | Vestfold, Norway | 3 | 1 | 0 | 2014-09-24 |
| Randaberg videregående skole | Rogaland, Norway | 3 | 1 | 0 | 2022-09-19 |
| Vadmyra skole | Vestland, Norway | 2 | 1 | 0 | 2022-09-28 |
| Foldnes skule | Vestland, Norway | 2 | 1 | 0 | 2006-04-21 |
| Ågotnes skule | Vestland, Norway | 2 | 1 | 0 | 2015-08-31 |
| Bergen Kristne grunnskole | Vestland, Norway | 2 | 1 | 0 | 2018-06-14 |
| Kvaløysletta skole | Troms, Norway | 2 | 1 | 0 | 2019-09-20 |
| Markaplassen skole | Trøndelag, Norway | 2 | 1 | 0 | 2018-05-23 |
| Steinerskolen på Rotvoll | Trøndelag, Norway | 2 | 1 | 1 | 2019-08-23 |
| Leonie Johann | Nordland, Norway | 2 | 1 | 0 | 2014-09-23 |
| Skarveland skule | Vestland, Norway | 2 | 1 | 0 | 2019-05-23 |
| Vollan skole | Trøndelag, Norway | 1 | 1 | 0 | 2020-06-02 |
| Eivindvik skule | Vestland, Norway | 1 | 1 | 1 | 2017-09-27 |
| Sandnes skole | Agder, Norway | 1 | 1 | 1 | 2017-10-27 |
| Nærøy ungdomsskole | Trøndelag, Norway | 1 | 1 | 0 | 2016-09-09 |
| Follese skole | Vestland, Norway | 1 | 1 | 0 | 2002-11-07 |
| Utheim skole | Møre og Romsdal, Norway | 1 | 1 | 0 | 2019-06-11 |
| Sandsli videregående skole | Vestland, Norway | 1 | 1 | 0 | 2012-05-08 |
| Skjold skule | Rogaland, Norway | 1 | 1 | 1 | 2016-08-29 |
| Trollvik skole | Troms, Norway | 1 | 1 | 1 | 2018-10-16 |
| Skjelnan skole | Troms, Norway | 1 | 1 | 0 | 2004-06-02 |
| Ryenberget skole | Oslo, Norway | 1 | 1 | 0 | 2015-09-10 |
| Oslo katedralskole | Oslo, Norway | 1 | 1 | 0 | 2015-10-07 |
| Skranevatnet skole | Vestland, Norway | 1 | 1 | 0 | 2016-10-03 |
| Aspåsen skole | Nordland, Norway | 1 | 1 | 0 | 2018-05-16 |
| Kvislabakken skole | Trøndelag, Norway | 1 | 1 | 1 | 2020-06-10 |
| Vang skole og ressurssenter | Østfold, Norway | 1 | 1 | 0 | 2016-09-08 |
| Føynland skole | Vestfold, Norway | 1 | 1 | 0 | 2018-09-07 |
| Vestmyra skole | Nordland, Norway | 1 | 1 | 1 | 2014-05-29 |
| Rubbestadneset skule | Vestland, Norway | 1 | 1 | 0 | 2017-09-14 |
| Cato Tandberg | Oslo, Norway | 1 | 1 | 0 | 2010-08-25 |
| Bygstad skule | Vestland, Norway | 1 | 1 | 0 | 2021-06-08 |
| Bergen private gymnas AS | Vestland, Norway | 1 | 1 | 0 | 2016-10-20 |