Kingdom: Det gule riket (Chromista)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Sandvikselva 2 | Akershus, Norway | 3 | 1 | 0 | 2008-10-22 | |
| Sandviksfjæra | Nordland, Norway | 4 | 4 | 0 | 2021-08-27 | |
| Sandøy | Møre og Romsdal, Norway | 70 | 6 | 0 | 1996-09-20 | |
| Sandå-Skarestrand | Agder, Norway | 236 | 7 | 0 | 1995-09-21 | |
| Sandåvika | Nordland, Norway | 16 | 4 | 0 | 1994-11-29 | |
| Saura | Nordland, Norway | 153 | 6 | 0 | 1995-10-03 | |
| Selje | Vestland, Norway | 156 | 6 | 0 | 1995-09-21 | |
| Seljebøvatnet | Møre og Romsdal, Norway | 9 | 7 | 0 | 1993-06-14 | |
| Semsvannet | Akershus, Norway | 23 | 18 | 0 | 1994-05-18 | |
| Senjahopen | Troms, Norway | 16 | 5 | 0 | 1995-03-17 | |
| Senjahopen | Troms, Norway | 14 | 5 | 0 | 1993-11-15 | |
| Sennsjøen | Innlandet, Norway | 3 | 3 | 0 | 1996-09-10 | |
| Sigerfjord | Nordland, Norway | 171 | 6 | 0 | 1998-10-06 | |
| Sillongen | Innlandet, Norway | 16 | 10 | 0 | 1990-05-22 | |
| Silsand | Troms, Norway | 7 | 5 | 0 | 1993-09-21 | |
| Sirevåg-Ogna-Varden | Rogaland, Norway | 133 | 7 | 0 | 1996-09-26 | |
| Sjøbadet, Myklebust | Rogaland, Norway | 3 | 3 | 3 | 2020-09-08 | |
| Skadberg | Rogaland, Norway | 2 | 2 | 0 | 1994-06-02 | |
| Skarbo | Telemark, Norway | 129 | 6 | 0 | 1996-08-27 | |
| Skarvatnet | Møre og Romsdal, Norway | 6 | 6 | 0 | 1989-09-13 | |
| Skatestraumen | Vestland, Norway | 2 | 2 | 0 | 2006-09-05 | |
| Skattval | Trøndelag, Norway | 24 | 7 | 16 | 2020-06-10 | |
| Skatval | Trøndelag, Norway | 6 | 6 | 6 | 2020-06-10 | |
| Skaug | Nordland, Norway | 141 | 6 | 0 | 1994-11-29 | |
| Skinnarvatnet | Agder, Norway | 1 | 1 | 0 | 2000-07-14 | |
| Skinnfelltangen | Agder, Norway | 26 | 6 | 0 | 1993-09-16 | |
| Skjebergkilen | Østfold, Norway | 116 | 6 | 0 | 1995-09-25 | |
| Skjelbreidvatnet | Vestland, Norway | 16 | 12 | 0 | 1991-06-06 | |
| Skjellvika | Vestfold, Norway | 38 | 6 | 0 | 1993-09-17 | |
| Skjernøya | Agder, Norway | 202 | 7 | 0 | 1995-09-21 | |
| Skjærvøya | Trøndelag, Norway | 79 | 6 | 0 | 1993-10-13 | |
| Skogerøya | Agder, Norway | 303 | 7 | 0 | 1997-10-02 | |
| Skoklefald | Akershus, Norway | 32 | 5 | 0 | 1993-10-13 | |
| Skottevig | Agder, Norway | 94 | 7 | 0 | 1995-10-09 | |
| Skottevik | Agder, Norway | 3 | 3 | 3 | 2013-09-19 | |
| Skånevik | Vestland, Norway | 208 | 6 | 0 | 1996-10-04 | |
| Skåraneset | Rogaland, Norway | 81 | 7 | 0 | 1995-10-02 | |
| Skåtøy | Telemark, Norway | 7 | 4 | 0 | 1995-01-02 | |
| Slagen | Vestfold, Norway | 221 | 7 | 0 | 1997-09-25 | |
| Slemmestad | Akershus, Norway | 54 | 6 | 0 | 1996-09-16 | |
| Slidrefjorden | Innlandet, Norway | 3 | 2 | 0 | 2012-05-16 | |
| Slåttvika | Nordland, Norway | 8 | 2 | 0 | 1994-11-30 | |
| Småvågane | Rogaland, Norway | 9 | 6 | 1 | 2016-06-10 | |
| Sola | Rogaland, Norway | 26 | 6 | 0 | 1995-09-08 | |
| Sola | Rogaland, Norway | 8 | 5 | 0 | 1995-09-08 | |
| Solastranda og Ølberg | Rogaland, Norway | 53 | 6 | 0 | 2005-06-10 | |
| Solveig fjæra | Troms, Norway | 5 | 5 | 0 | 2017-09-01 | |
| Solvorn | Vestland, Norway | 6 | 4 | 0 | 1993-11-29 | |
| Songebukta | Agder, Norway | 82 | 6 | 0 | 1994-12-05 | |
| Sortland | Nordland, Norway | 207 | 6 | 0 | 1996-10-02 | |
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