Genus: Anabaena
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Akersvannet | Vestfold, Norway | 8 | 5 | 0 | 1994-09-20 | |
| Arkavatnet | Rogaland, Norway | 4 | 2 | 0 | 1994-09-12 | |
| Bergvikvatnet | Nordland, Norway | 5 | 4 | 0 | 1994-09-13 | |
| Bogstadvannet | Oslo, Norway | 1 | 1 | 0 | 1993-06-10 | |
| Dælivannet | Akershus, Norway | 2 | 2 | 0 | 1991-09-07 | |
| Elgtjern | Trøndelag, Norway | 3 | 1 | 0 | 1990-05-25 | |
| Floen | Vestland, Norway | 1 | 1 | 0 | 1993-10-04 | |
| Frøylandsvatnet | Rogaland, Norway | 6 | 2 | 0 | 1993-09-29 | |
| Granavatnet | Trøndelag, Norway | 5 | 3 | 0 | 1991-09-10 | |
| Hammervatnet | Trøndelag, Norway | 1 | 1 | 0 | 1994-06-18 | |
| Harestuvannet | Akershus, Norway | 4 | 2 | 0 | 2005-08-30 | |
| Hauskjevatnet | Rogaland, Norway | 2 | 1 | 0 | 1990-05-28 | |
| Hegglandsvatnet | Vestland, Norway | 2 | 1 | 0 | 1993-06-02 | |
| Hjørungdalsvatnet | Møre og Romsdal, Norway | 5 | 3 | 0 | 1994-09-13 | |
| Holdalsvatn | Nordland, Norway | 1 | 1 | 0 | 1994-09-05 | |
| Hostadvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1989-09-14 | |
| Husavatnet | Vestland, Norway | 1 | 1 | 0 | 1991-06-10 | |
| Ibestadvatnet | Troms, Norway | 2 | 2 | 0 | 1989-10-10 | |
| Inndalsvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1994-05-02 | |
| Jarenvannet | Innlandet, Norway | 5 | 2 | 0 | 1996-09-18 | |
| Kjemsjøen | Innlandet, Norway | 2 | 2 | 0 | 1994-06-13 | |
| Klevatn | Nordland, Norway | 1 | 1 | 0 | 1993-09-07 | |
| Kolbjørnviksjøen | Østfold, Norway | 2 | 1 | 0 | 1990-08-29 | |
| Kolbotnvannet | Akershus, Norway | 3 | 1 | 0 | 1991-06-03 | |
| Koltjønna | Trøndelag, Norway | 1 | 1 | 0 | 1991-08-28 | |
| Korssjøen | Vestfold, Norway | 2 | 2 | 0 | 1996-09-09 | |
| Kruktjønna | Trøndelag, Norway | 2 | 1 | 0 | 1991-08-28 | |
| Krussætertjern | Østfold, Norway | 3 | 1 | 0 | 1993-06-16 | |
| Kvitblikkvannet | Nordland, Norway | 2 | 1 | 0 | 1991-09-25 | |
| Langavatnet | Vestland, Norway | 4 | 2 | 0 | 1991-10-25 | |
| Laupen | Innlandet, Norway | 3 | 1 | 0 | 1993-10-04 | |
| Lauvtjønna | Trøndelag, Norway | 1 | 1 | 0 | 1991-09-06 | |
| Liavatnet | Vestland, Norway | 1 | 1 | 0 | 1994-09-14 | |
| Litlevatn | Møre og Romsdal, Norway | 1 | 1 | 0 | 1994-04-27 | |
| Ljøgodttjern | Akershus, Norway | 1 | 1 | 0 | 1989-09-21 | |
| Maltjern | Akershus, Norway | 2 | 1 | 0 | 1991-06-12 | |
| Mannslagervatnet | Nordland, Norway | 1 | 1 | 0 | 1989-08-30 | |
| Molbekktjernet | Østfold, Norway | 1 | 1 | 0 | 1989-09-04 | |
| Mosvatnet | Rogaland, Norway | 12 | 6 | 0 | 1994-09-28 | |
| Myklebustvannet | Møre og Romsdal, Norway | 4 | 3 | 0 | 1991-06-03 | |
| Nøklevann | Oslo, Norway | 3 | 2 | 0 | 1990-09-11 | |
| Oltervatnet | Nordland, Norway | 1 | 1 | 0 | 1989-09-14 | |
| Prestvatn | Agder, Norway | 2 | 1 | 0 | 1994-09-12 | |
| Raudsjøen | Trøndelag, Norway | 1 | 1 | 0 | 1994-09-19 | |
| Reiarsvatnet | Rogaland, Norway | 4 | 1 | 0 | 1991-09-16 | |
| Rossevatn | Rogaland, Norway | 3 | 1 | 0 | 1994-10-10 | |
| Rundvannet | Troms, Norway | 2 | 1 | 0 | 1994-06-10 | |
| Røldalstjørnet | Vestland, Norway | 2 | 1 | 0 | 1993-06-08 | |
| Rørvatnet | Møre og Romsdal, Norway | 6 | 2 | 0 | 1994-09-07 | |
| Sagtjernet | Innlandet, Norway | 1 | 1 | 0 | 1991-07-25 | |