| Microcystis aeruginosa | | 17.09.1991 | 17.09.1991 | Rossevatn (Karmøy, Rogaland) |  |
| Microcystis sp. | | 16.09.1991 | 16.09.1991 | Reiarsvatnet (Karmøy, Rogaland) | |
| Microcystis sp. | | 16.09.1991 | 16.09.1991 | Årungen (Ås, Akershus) | |
| Microcystis sp. | | 16.09.1991 | 16.09.1991 | Jåbekkvannet (Lindesnes, Agder) | |
| Microcystis sp. | | 15.09.1991 | 15.09.1991 | Øksnevadtjørna (Klepp, Rogaland) | |
| Microcystis sp. | | 13.09.1991 | 13.09.1991 | Tornesvatnet (Haugesund, Rogaland) | |
| Microcystis sp. | | 13.09.1991 | 13.09.1991 | Harestuvannet (Lunner, Akershus) | |
| Microcystis sp. | | 13.09.1991 | 13.09.1991 | Vålåsjøen (Sel, Innlandet) | |
| Microcystis sp. | | 12.09.1991 | 12.09.1991 | Hegglandsvatnet (Bjørnafjorden, Vestland) | |
| Microcystis sp. | | 12.09.1991 | 12.09.1991 | Arkavatnet (Haugesund, Rogaland) | |
| Microcystis sp. | | 07.09.1991 | 07.09.1991 | Dælivannet (Bærum, Akershus) | |
| Microcystis sp. | | 06.09.1991 | 06.09.1991 | Bergvikvatnet (Hadsel, Nordland) | |
| Microcystis sp. | | 06.09.1991 | 06.09.1991 | Lauvtjønna (Malvik, Trøndelag) | |
| Microcystis spp. | | 05.09.1991 | 05.09.1991 | Kjemsjøen (Stor-Elvdal, Innlandet) | |
| Microcystis sp. | | 05.09.1991 | 05.09.1991 | Prestvatn (Bygland, Agder) | |
| Microcystis sp. | | 05.09.1991 | 05.09.1991 | Kolbjørnviksjøen (Marker, Østfold) | |
| Microcystis cf. wesenbergii | | 27.08.1991 | 27.08.1991 | Jarenvannet (Gran, Innlandet) | |
| Microcystis sp. | | 25.07.1991 | 25.07.1991 | Sagtjernet (Elverum, Innlandet) | |
| Microcystis sp. | | 18.06.1991 | 18.06.1991 | Rundvannet (Tromsø, Troms) | |
| Microcystis sp. | | 18.06.1991 | 18.06.1991 | Hammervatnet (Levanger, Trøndelag) | |
| Microcystis sp. | | 14.06.1991 | 14.06.1991 | Rørvatnet (Smøla, Møre og Romsdal) | |
| Microcystis spp. | | 10.06.1991 | 10.06.1991 | Kjemsjøen (Stor-Elvdal, Innlandet) | |
| Microcystis sp. | | 09.06.1991 | 09.06.1991 | Stavsjø (Ringsaker, Innlandet) | |
| Microcystis sp. | | 08.06.1991 | 08.06.1991 | Stavsjø (Ringsaker, Innlandet) | |
| Microcystis cf. aeruginosa | | 06.06.1991 | 06.06.1991 | Nesttunvannet (Bergen, Vestland) | |
| Microcystis sp. | | 04.06.1991 | 04.06.1991 | Kristianborgvannet (Bergen, Vestland) | |
| Microcystis sp. | | 31.05.1991 | 31.05.1991 | Sagtjernet (Elverum, Innlandet) | |
| Microcystis sp. | | 30.05.1991 | 30.05.1991 | Arkavatnet (Haugesund, Rogaland) | |
| Microcystis sp. | | 30.05.1991 | 30.05.1991 | Tornesvatnet (Haugesund, Rogaland) | |
| Microcystis sp. | | 28.05.1991 | 28.05.1991 | Granavatnet (Inderøy, Trøndelag) | |
| Microcystis sp. | | 23.05.1991 | 23.05.1991 | Tveitavatnet (Stord, Vestland) | |
| Microcystis sp. | | 16.05.1991 | 16.05.1991 | Mosvatnet (Stavanger, Rogaland) | |
| Microcystis sp. | | 19.03.1991 | 19.03.1991 | Lysevatnet (Tysvær, Rogaland) | |
| Microcystis sp. | | 04.10.1990 | 04.10.1990 | Vasslivatnet (Vindafjord, Rogaland) | |
| Microcystis spp. | | 29.09.1990 | 29.09.1990 | Stavsjø (Ringsaker, Innlandet) | |
| Microcystis sp. | | 26.09.1990 | 26.09.1990 | Årungen (Ås, Akershus) | |
| Microcystis sp. | | 26.09.1990 | 26.09.1990 | Gullerudtjern (Ringerike, Buskerud) | |
| Microcystis sp. | | 26.09.1990 | 26.09.1990 | Gullerudtjern (Ringerike, Buskerud) | |
| Microcystis sp. | | 18.09.1990 | 18.09.1990 | Stokkavatnet (Nesna, Nordland) | |
| Microcystis sp. | | 18.09.1990 | 18.09.1990 | Åstveitvannet (Bergen, Vestland) | |
| Microcystis sp. | | 18.09.1990 | 18.09.1990 | Åstveitvannet (Bergen, Vestland) | |
| Microcystis sp. | | 18.09.1990 | 18.09.1990 | Stokkavatnet (Nesna, Nordland) | |
| Microcystis sp. | | 17.09.1990 | 17.09.1990 | Laupen (Østre Toten, Innlandet) | |
| Microcystis sp. | | 17.09.1990 | 17.09.1990 | Årungen (Ås, Akershus) | |
| Microcystis sp. | | 17.09.1990 | 17.09.1990 | Laupen (Østre Toten, Innlandet) | |
| Microcystis sp. | | 11.09.1990 | 11.09.1990 | Nøklevann (Oslo) | |
| Microcystis sp. | | 09.09.1990 | 09.09.1990 | Bergvikvatnet (Hadsel, Nordland) | |
| Microcystis sp. | | 07.09.1990 | 07.09.1990 | Storvannet (Sortland - Suortá, Nordland) | |
| Microcystis sp. | | 04.09.1990 | 04.09.1990 | Bergvikvatnet (Hadsel, Nordland) | |
| Microcystis sp. | | 03.09.1990 | 03.09.1990 | Rundvannet (Tromsø, Troms) | |
