Species: Rød brennmanet (Cyanea capillata)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Midsund | Møre og Romsdal, Norway | 17 | 1 | 0 | 1996-09-20 | |
| Mindalen | Agder, Norway | 2 | 1 | 0 | 1993-11-02 | |
| Monstad | Trøndelag, Norway | 4 | 1 | 0 | 1994-12-05 | |
| Moutmarka | Vestfold, Norway | 12 | 1 | 0 | 1994-11-09 | |
| Munkerekka | Vestfold, Norway | 58 | 1 | 0 | 2001-05-21 | |
| Myklebost | Møre og Romsdal, Norway | 10 | 1 | 0 | 1993-09-24 | |
| Mærdø | Agder, Norway | 16 | 1 | 0 | 1994-10-26 | |
| Møllebukta, Hafrsfjord | Rogaland, Norway | 25 | 1 | 0 | 1996-10-08 | |
| Måndalen | Møre og Romsdal, Norway | 5 | 1 | 0 | 1996-10-23 | |
| Narvik | Nordland, Norway | 36 | 1 | 0 | 1998-11-24 | |
| Nattholmen | Vestfold, Norway | 57 | 1 | 0 | 1998-09-17 | |
| Naverfjorden | Vestfold, Norway | 10 | 1 | 0 | 2000-09-26 | |
| Nesna | Nordland, Norway | 1 | 1 | 0 | 1997-09-24 | |
| Nordbø | Rogaland, Norway | 13 | 1 | 0 | 1999-09-29 | |
| Nordnesøy | Nordland, Norway | 12 | 1 | 0 | 1998-09-15 | |
| Nordre Eigerøy | Rogaland, Norway | 6 | 1 | 0 | 1998-06-08 | |
| Nær Vartdal skule | Møre og Romsdal, Norway | 2 | 1 | 0 | 1994-10-03 | |
| Nærbø | Rogaland, Norway | 31 | 1 | 0 | 1996-10-14 | |
| Nærsnes | Akershus, Norway | 1 | 1 | 0 | 1993-12-07 | |
| Oddane sand/Smørbukta | Vestfold, Norway | 42 | 1 | 0 | 1996-09-24 | |
| Oksvoll | Trøndelag, Norway | 13 | 1 | 0 | 1997-10-08 | |
| Olden | Vestland, Norway | 4 | 1 | 0 | 1994-11-03 | |
| Orerønningen | Vestfold, Norway | 2 | 1 | 0 | 1993-11-29 | |
| Ormelet | Vestfold, Norway | 18 | 1 | 0 | 1994-11-09 | |
| Orvika | Møre og Romsdal, Norway | 21 | 1 | 0 | 2002-05-31 | |
| Ottersøy | Trøndelag, Norway | 2 | 1 | 0 | 1995-10-26 | |
| Pusnes/Tybakken | Agder, Norway | 71 | 1 | 0 | 2005-09-22 | |
| Randesund | Agder, Norway | 14 | 1 | 0 | 1994-12-01 | |
| Ranvik | Vestfold, Norway | 37 | 1 | 0 | 1996-09-24 | |
| Ranvik | Agder, Norway | 10 | 1 | 0 | 1994-10-18 | |
| Ravnøy | Vestfold, Norway | 37 | 1 | 0 | 1995-09-21 | |
| Ringshaug | Vestfold, Norway | 31 | 1 | 0 | 1996-09-25 | |
| Rognstranda | Telemark, Norway | 1 | 1 | 0 | 1993-09-27 | |
| Rosfjorden | Agder, Norway | 35 | 1 | 0 | 1995-11-01 | |
| Rypefjord | Finnmark, Norway | 4 | 1 | 0 | 1993-11-12 | |
| Rødskjær | Vestfold, Norway | 57 | 1 | 0 | 2008-09-11 | |
| Rømmen/Lysøysundet | Trøndelag, Norway | 3 | 1 | 0 | 1993-11-19 | |
| Røvika | Vestfold, Norway | 61 | 1 | 0 | 2008-09-11 | |
| Sageneset | Vestland, Norway | 1 | 1 | 0 | 2003-09-15 | |
| Sagesund-Falkøya | Agder, Norway | 19 | 1 | 0 | 1995-09-19 | |
| Salhusstrømmen(Fastlandssiden) | Rogaland, Norway | 7 | 1 | 0 | 1995-10-04 | |
| Saltbuholmen | Agder, Norway | 1 | 1 | 0 | 1993-10-18 | |
| Saltstein | Telemark, Norway | 1 | 1 | 0 | 1995-01-02 | |
| Sand-Mulvika | Vestfold, Norway | 36 | 1 | 0 | 2001-09-18 | |
| Sandeid | Rogaland, Norway | 17 | 1 | 0 | 1997-10-15 | |
| Sandeåsen | Vestfold, Norway | 39 | 1 | 0 | 1997-10-09 | |
| Sandhornøy | Nordland, Norway | 6 | 1 | 0 | 1994-10-17 | |
| Sandvika | Rogaland, Norway | 24 | 1 | 0 | 1999-09-29 | |
| Sandøy | Møre og Romsdal, Norway | 4 | 1 | 0 | 1996-09-20 | |
| Sandå-Skarestrand | Agder, Norway | 24 | 1 | 0 | 1995-09-21 |
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