Species (sp.): Balanus sp.
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Sandeåsen | Vestfold, Norway | 33 | 1 | 0 | 1997-10-09 | |
| Sandvika | Finnmark, Norway | 14 | 1 | 0 | 1995-09-14 | |
| Sandvika | Rogaland, Norway | 11 | 1 | 0 | 1998-10-05 | |
| Sandøy | Møre og Romsdal, Norway | 3 | 1 | 0 | 1996-09-20 | |
| Sandå-Skarestrand | Agder, Norway | 8 | 1 | 0 | 1995-09-21 | |
| Saura | Nordland, Norway | 12 | 1 | 0 | 1995-10-03 | |
| Selje | Vestland, Norway | 8 | 1 | 0 | 1995-09-21 | |
| Senjahopen | Troms, Norway | 2 | 1 | 0 | 1995-03-17 | |
| Sigerfjord | Nordland, Norway | 15 | 1 | 0 | 1998-10-06 | |
| Sirevåg-Ogna-Varden | Rogaland, Norway | 3 | 1 | 0 | 1996-09-26 | |
| Skarbo | Telemark, Norway | 11 | 1 | 0 | 1996-08-27 | |
| Skjebergkilen | Østfold, Norway | 12 | 1 | 0 | 1995-09-25 | |
| Skjernøya | Agder, Norway | 14 | 1 | 0 | 1995-09-21 | |
| Skogerøya | Agder, Norway | 36 | 1 | 0 | 1997-10-02 | |
| Skottevig | Agder, Norway | 6 | 1 | 0 | 1995-10-09 | |
| Skånevik | Vestland, Norway | 20 | 1 | 0 | 1996-10-04 | |
| Skåraneset | Rogaland, Norway | 2 | 1 | 0 | 1995-10-02 | |
| Slagen | Vestfold, Norway | 10 | 1 | 0 | 1996-09-25 | |
| Slemmestad | Akershus, Norway | 8 | 1 | 0 | 1996-09-16 | |
| Sola | Rogaland, Norway | 1 | 1 | 0 | 1995-09-08 | |
| Sola | Rogaland, Norway | 1 | 1 | 0 | 1995-09-08 | |
| Sortland | Nordland, Norway | 9 | 1 | 0 | 1996-10-02 | |
| Spervik | Vestfold, Norway | 9 | 1 | 0 | 1996-09-24 | |
| Spildepollen | Vestland, Norway | 3 | 1 | 0 | 1996-10-18 | |
| Spildra | Nordland, Norway | 11 | 1 | 0 | 1998-10-07 | |
| Stathelle | Telemark, Norway | 14 | 1 | 0 | 1998-09-23 | |
| Statland | Trøndelag, Norway | 11 | 1 | 0 | 1996-06-19 | |
| Stavern | Vestfold, Norway | 3 | 1 | 0 | 1998-10-06 | |
| Stavern | Vestfold, Norway | 10 | 1 | 0 | 1998-09-23 | |
| Stavern | Vestfold, Norway | 11 | 1 | 0 | 1998-09-18 | |
| Steika | Vestfold, Norway | 24 | 1 | 0 | 1997-09-16 | |
| Steinsvikstranda | Møre og Romsdal, Norway | 9 | 1 | 0 | 1996-09-25 | |
| Stengelvåg | Nordland, Norway | 10 | 1 | 0 | 1995-06-08 | |
| Stokkastrand | Rogaland, Norway | 2 | 1 | 0 | 1995-10-03 | |
| Storleiret | Trøndelag, Norway | 2 | 1 | 0 | 1995-06-12 | |
| Strand | Nordland, Norway | 29 | 1 | 0 | 1996-09-16 | |
| Strandvik/vinnes | Vestland, Norway | 12 | 1 | 0 | 1996-10-03 | |
| Strøno | Vestland, Norway | 14 | 1 | 0 | 1996-09-18 | |
| Støre/Eigerøy | Rogaland, Norway | 20 | 1 | 0 | 1998-09-22 | |
| Støtt | Nordland, Norway | 1 | 1 | 0 | 1996-09-20 | |
| Sula | Trøndelag, Norway | 2 | 1 | 0 | 1997-10-12 | |
| Sveggøya | Møre og Romsdal, Norway | 12 | 1 | 0 | 1997-10-07 | |
| Svelvik | Buskerud, Norway | 10 | 1 | 0 | 1995-10-09 | |
| Syvdefjorden | Møre og Romsdal, Norway | 27 | 1 | 0 | 1997-10-09 | |
| Syvdefjorden | Møre og Romsdal, Norway | 21 | 1 | 0 | 1997-10-09 | |
| Sæbø | Møre og Romsdal, Norway | 1 | 1 | 0 | 2000-09-15 | |
| Sælenvannet | Vestland, Norway | 1 | 1 | 0 | 1991-05-04 | |
| Sømskilen | Agder, Norway | 13 | 1 | 0 | 1997-10-03 | |
| Sør Kolnes | Rogaland, Norway | 1 | 1 | 0 | 1995-09-06 | |
| Søvik | Møre og Romsdal, Norway | 4 | 1 | 0 | 1995-09-18 | |
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