Genus: Microcystis
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2005 | 1 | 1 | 1 | 1 |
| 2003 | 1 | 1 | 1 | 1 |
| 1996 | 1 | 3 | 3 | 3 |
| 1994 | 1 | 14 | 13 | 15 |
| 1993 | 2 | 16 | 17 | 18 |
| 1992 | 1 | 1 | 1 | 1 |
| 1991 | 5 | 33 | 32 | 44 |
| 1990 | 2 | 21 | 22 | 40 |
| 1989 | 3 | 33 | 35 | 36 |
| Totalt alle år | 5 | 73 | 74 | 159 |
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Responsible editor: Doris Jorde