Genus: Asterionella
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2003 | 1 | 1 | 1 | 1 |
| 1996 | 1 | 3 | 3 | 3 |
| 1994 | 1 | 10 | 9 | 10 |
| 1993 | 1 | 16 | 17 | 18 |
| 1992 | 1 | 3 | 3 | 3 |
| 1991 | 1 | 15 | 16 | 19 |
| 1990 | 2 | 21 | 22 | 40 |
| 1989 | 1 | 22 | 22 | 23 |
| Totalt alle år | 2 | 47 | 49 | 117 |
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2003 | 1 | 1 | 1 | 1 |
| 1996 | 1 | 3 | 3 | 3 |
| 1994 | 1 | 10 | 9 | 10 |
| 1993 | 1 | 16 | 17 | 18 |
| 1992 | 1 | 3 | 3 | 3 |
| 1991 | 1 | 15 | 16 | 19 |
| 1990 | 2 | 21 | 22 | 40 |
| 1989 | 1 | 22 | 22 | 23 |
| Totalt alle år | 2 | 47 | 49 | 117 |