| Gomphosphaeria lacustris | | 12.06.1991 | 12.06.1991 | Maltjern (Aurskog-Høland, Akershus) |  |
| Gomphosphaeria lacustris | | 12.06.1991 | 12.06.1991 | Maltjern (Aurskog-Høland, Akershus) | |
| Merismopedia sp. | | 10.06.1991 | 10.06.1991 | Prestvatn (Bygland, Agder) | |
| 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) | |
| Gomphosphaeria sp. | | 06.06.1991 | 06.06.1991 | Skjelbreidvatnet (Bjørnafjorden, Vestland) | |
| Merismopedia sp. | | 06.06.1991 | 06.06.1991 | Skjelbreidvatnet (Bjørnafjorden, Vestland) | |
| Microcystis sp. | | 04.06.1991 | 04.06.1991 | Kristianborgvannet (Bergen, Vestland) | |
| Gomphosphaeria cf. lacustris | | 31.05.1991 | 31.05.1991 | Kruktjønna (Ørland, Trøndelag) | |
| Microcystis sp. | | 31.05.1991 | 31.05.1991 | Sagtjernet (Elverum, Innlandet) | |
| Microcystis sp. | | 30.05.1991 | 30.05.1991 | Tornesvatnet (Haugesund, Rogaland) | |
| Microcystis sp. | | 30.05.1991 | 30.05.1991 | Arkavatnet (Haugesund, Rogaland) | |
| Gomphosphaeria sp. | | 30.05.1991 | 30.05.1991 | Tornesvatnet (Haugesund, Rogaland) | |
| Merismopedia sp. | | 30.05.1991 | 30.05.1991 | Arkavatnet (Haugesund, Rogaland) | |
| Gomphosphaeria lacustris | | 30.05.1991 | 30.05.1991 | Arkavatnet (Haugesund, Rogaland) | |
| Gomphosphaeria sp. | | 28.05.1991 | 28.05.1991 | Kolbjørnviksjøen (Marker, Østfold) | |
| Microcystis sp. | | 28.05.1991 | 28.05.1991 | Granavatnet (Inderøy, Trøndelag) | |
| Microcystis sp. | | 23.05.1991 | 23.05.1991 | Tveitavatnet (Stord, Vestland) | |
| Merismopedia glauca | | 23.05.1991 | 23.05.1991 | Svartaholtjørnet (Sogndal, Vestland) | |
| Microcystis sp. | | 16.05.1991 | 16.05.1991 | Mosvatnet (Stavanger, Rogaland) | |
| Merismopedia sp. | | 16.05.1991 | 16.05.1991 | Mosvatnet (Stavanger, Rogaland) | |
| Gomphosphaeria cf. lacustris | | 04.05.1991 | 04.05.1991 | Sælenvannet (Bergen, Vestland) | |
| Gomphosphaeria naegeliana | | 24.04.1991 | 24.04.1991 | Frøylandsvatnet (Time, Rogaland) | |
| Merismopedia sp. | | 24.04.1991 | 24.04.1991 | Frøylandsvatnet (Time, Rogaland) | |
| Merismopedia sp. | | 19.03.1991 | 19.03.1991 | Lysevatnet (Tysvær, Rogaland) | |
| Gomphosphaeria sp. | | 19.03.1991 | 19.03.1991 | Lysevatnet (Tysvær, Rogaland) | |
| Microcystis sp. | | 19.03.1991 | 19.03.1991 | Lysevatnet (Tysvær, Rogaland) | |
| Gomphosphaeria naegeliana | | 24.10.1990 | 24.10.1990 | Frøylandsvatnet (Time, Rogaland) | |
| Merismopedia sp. | | 18.10.1990 | 18.10.1990 | Rørvatnet (Smøla, Møre og Romsdal) | |
| Merismopedia sp. | | 18.10.1990 | 18.10.1990 | Rørvatnet (Smøla, Møre og Romsdal) | |
| Microcystis sp. | | 04.10.1990 | 04.10.1990 | Vasslivatnet (Vindafjord, Rogaland) | |
| Microcystis spp. | | 29.09.1990 | 29.09.1990 | Stavsjø (Ringsaker, Innlandet) | |
| Gomphosphaeria naegeliana | | 28.09.1990 | 28.09.1990 | Koltjønna (Ørland, Trøndelag) | |
| Merismopedia sp. | | 27.09.1990 | 27.09.1990 | Håskjoldtjern (Volda, Møre og Romsdal) | |
| Merismopedia sp. | | 27.09.1990 | 27.09.1990 | Tornesvatnet (Haugesund, Rogaland) | |
| Gomphosphaeria lacustris | | 26.09.1990 | 26.09.1990 | Gullerudtjern (Ringerike, Buskerud) | |
| Chroococcus sp. | | 26.09.1990 | 26.09.1990 | Gullerudtjern (Ringerike, Buskerud) | |
| Gomphosphaeria naegeliana | | 26.09.1990 | 26.09.1990 | Hauskjevatnet (Stavanger, Rogaland) | |
| Microcystis sp. | | 26.09.1990 | 26.09.1990 | Årungen (Ås, Akershus) | |
| Gomphosphaeria cf. lacustris | | 26.09.1990 | 26.09.1990 | Gullerudtjern (Ringerike, Buskerud) | |
| Gomphosphaeria naegeliana | | 26.09.1990 | 26.09.1990 | Trytetjønnet (Nore og Uvdal, Buskerud) | |
| Gomphosphaeria naegeliana | | 26.09.1990 | 26.09.1990 | Årungen (Ås, Akershus) | |
| Gomphosphaeria sp. | | 26.09.1990 | 26.09.1990 | Gullerudtjern (Ringerike, Buskerud) | |
| Merismopedia sp. | | 26.09.1990 | 26.09.1990 | Trytetjønnet (Nore og Uvdal, Buskerud) | |
| Merismopedia sp. | | 26.09.1990 | 26.09.1990 | Trytetjønnet (Nore og Uvdal, Buskerud) | |
| Gomphosphaeria naegeliana | | 26.09.1990 | 26.09.1990 | Trytetjønnet (Nore og Uvdal, Buskerud) | |
| Merismopedia sp. | | 26.09.1990 | 26.09.1990 | Opsangervatnet (Kvinnherad, Vestland) | |
| Merismopedia sp. | | 26.09.1990 | 26.09.1990 | Opsangervatnet (Kvinnherad, Vestland) | |
