Species (sp.): Cyclotella sp.
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Burudvann | Akershus, Norway | 1 | 1 | 0 | 1991-09-12 | |
| Eidsvatnet | Møre og Romsdal, Norway | 2 | 1 | 0 | 1990-09-12 | |
| Frøylandsvatnet | Rogaland, Norway | 4 | 1 | 0 | 1993-09-29 | |
| Granavatnet | Trøndelag, Norway | 2 | 1 | 0 | 1991-05-28 | |
| Gullerudtjern | Buskerud, Norway | 3 | 1 | 0 | 1991-06-06 | |
| Hammervatnet | Trøndelag, Norway | 4 | 1 | 0 | 1990-09-11 | |
| Harestuvannet | Akershus, Norway | 5 | 1 | 0 | 2004-09-01 | |
| Hostadvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1990-09-18 | |
| Husavatnet | Vestland, Norway | 4 | 1 | 0 | 1990-09-20 | |
| Håskjoldtjern | Møre og Romsdal, Norway | 1 | 1 | 0 | 1990-09-27 | |
| Ibestadvatnet | Troms, Norway | 2 | 1 | 0 | 1990-09-11 | |
| Kjemsjøen | Innlandet, Norway | 2 | 1 | 0 | 1990-10-13 | |
| Kolbjørnviksjøen | Østfold, Norway | 3 | 1 | 0 | 1991-09-05 | |
| Kolbotnvannet | Akershus, Norway | 2 | 1 | 0 | 1991-06-03 | |
| Kruktjønna | Trøndelag, Norway | 1 | 1 | 0 | 1991-08-28 | |
| Kverndammen | Telemark, Norway | 2 | 1 | 0 | 1990-06-05 | |
| Laksådalsvatnet | Nordland, Norway | 2 | 1 | 0 | 1991-06-05 | |
| Langavatnet | Vestland, Norway | 1 | 1 | 0 | 1990-06-07 | |
| Laupen | Innlandet, Norway | 4 | 1 | 0 | 1991-10-01 | |
| Lauvtjønna | Trøndelag, Norway | 3 | 1 | 0 | 1991-09-06 | |
| Liavatnet | Trøndelag, Norway | 1 | 1 | 0 | 1989-09-19 | |
| Litlevatn | Møre og Romsdal, Norway | 2 | 1 | 0 | 1994-09-07 | |
| Litlvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1994-09-08 | |
| Midsjøvannet | Akershus, Norway | 1 | 1 | 0 | 1992-09-23 | |
| Mosvatnet | Rogaland, Norway | 2 | 1 | 0 | 1994-09-28 | |
| Nøklevann | Oslo, Norway | 3 | 1 | 0 | 1990-09-11 | |
| Raudsjøen | Trøndelag, Norway | 1 | 1 | 0 | 1994-09-19 | |
| Rossevatn | Rogaland, Norway | 3 | 1 | 0 | 1991-05-27 | |
| Rundvannet | Troms, Norway | 2 | 1 | 0 | 1994-09-10 | |
| Rørvatnet | Møre og Romsdal, Norway | 2 | 1 | 0 | 1994-06-21 | |
| Sagtjernet | Innlandet, Norway | 3 | 1 | 0 | 1994-10-04 | |
| Semsvannet | Akershus, Norway | 2 | 1 | 0 | 1994-05-18 | |
| Sillongen | Innlandet, Norway | 2 | 1 | 0 | 1990-05-22 | |
| Stokkavatnet | Nordland, Norway | 2 | 1 | 0 | 1990-09-18 | |
| Storavatnet | Vestland, Norway | 1 | 1 | 0 | 1991-10-20 | |
| Sundkilen | Telemark, Norway | 1 | 1 | 0 | 1989-09-07 | |
| Svartåstjern | Buskerud, Norway | 1 | 1 | 0 | 1994-06-06 | |
| Tornesvatnet | Rogaland, Norway | 1 | 1 | 0 | 1990-06-07 | |
| Tveitavatnet | Vestland, Norway | 3 | 1 | 0 | 1991-05-23 | |
| Tømmervatnet | Troms, Norway | 1 | 1 | 0 | 1994-09-16 | |
| Ulfsbakktjønn | Vestfold, Norway | 1 | 1 | 0 | 1996-09-25 | |
| Vasslivatnet | Rogaland, Norway | 1 | 1 | 0 | 1990-10-04 | |
| Vikerauntjønna | Trøndelag, Norway | 2 | 1 | 0 | 1990-09-28 | |
| Vålåsjøen | Innlandet, Norway | 3 | 1 | 0 | 1993-06-09 | |
| Ørsjøen | Innlandet, Norway | 1 | 1 | 0 | 1993-09-02 | |
| Årungen | Akershus, Norway | 1 | 1 | 0 | 1990-09-17 | |
| Åstveitvannet | Vestland, Norway | 3 | 1 | 0 | 1991-09-27 | |
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