Ostrea
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Sandgotna skole | Vestland, Norway | 9 | 1 | 5 | 2020-06-11 |
| Sjøholmen maritime senter | Akershus, Norway | 8 | 1 | 0 | 1996-09-11 |
| Mathopen skole | Vestland, Norway | 5 | 1 | 3 | 2016-09-23 |
| Tjøme ungdomsskole | Vestfold, Norway | 3 | 1 | 0 | 2014-09-16 |
| Blommenholm skole | Akershus, Norway | 3 | 1 | 0 | 1996-10-08 |
| Porsgrunn videregående skole | Telemark, Norway | 2 | 1 | 2 | 2013-05-14 |
| Ramstad skole | Akershus, Norway | 2 | 1 | 0 | 1996-05-24 |
| John Skartveit | Vestland, Norway | 2 | 1 | 1 | 2010-12-29 |
| Friluftsrådet Sør | Agder, Norway | 2 | 1 | 2 | 2013-05-13 |
| Bjørnegård skole | Akershus, Norway | 1 | 1 | 0 | 1996-09-17 |
| Hisøy skole 1-10 skoler | Agder, Norway | 1 | 1 | 0 | 2013-03-20 |
| Sandsli videregående skole | Vestland, Norway | 1 | 1 | 0 | 2001-01-24 |
| Kristiansand katedralskole Gimle | Agder, Norway | 1 | 1 | 1 | 2013-03-20 |
| Skolelaboratoriet i realfag, UiB | Vestland, Norway | 1 | 1 | 0 | 2013-03-20 |
| Sandnes skole | Agder, Norway | 1 | 1 | 1 | 2013-03-20 |
| Flosta skole | Agder, Norway | 1 | 1 | 1 | 2013-03-20 |
| Dokka videregående skole | Innlandet, Norway | 1 | 1 | 0 | 2013-03-20 |
| Bekkestua skole | Akershus, Norway | 1 | 1 | 0 | 1996-08-22 |
| Lysaker skole | Akershus, Norway | 1 | 1 | 0 | 1996-09-09 |