Species: Grastjernaks (Potamogeton gramineus)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2005 | 1 | 1 | 1 | 1 |
| 1997 | 1 | 1 | 1 | 1 |
| 1994 | 1 | 2 | 2 | 2 |
| 1993 | 1 | 1 | 1 | 1 |
| 1991 | 1 | 1 | 1 | 1 |
| 1989 | 1 | 7 | 7 | 7 |
| Totalt alle år | 1 | 11 | 11 | 13 |
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2005 | 1 | 1 | 1 | 1 |
| 1997 | 1 | 1 | 1 | 1 |
| 1994 | 1 | 2 | 2 | 2 |
| 1993 | 1 | 1 | 1 | 1 |
| 1991 | 1 | 1 | 1 | 1 |
| 1989 | 1 | 7 | 7 | 7 |
| Totalt alle år | 1 | 11 | 11 | 13 |