Species: Hydroporus palustris
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 1997 | 1 | 4 | 4 | 4 |
| 1992 | 1 | 11 | 11 | 14 |
| 1991 | 1 | 9 | 9 | 10 |
| 1990 | 1 | 14 | 13 | 14 |
| 1989 | 1 | 12 | 12 | 12 |
| Totalt alle år | 1 | 32 | 30 | 54 |
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 1997 | 1 | 4 | 4 | 4 |
| 1992 | 1 | 11 | 11 | 14 |
| 1991 | 1 | 9 | 9 | 10 |
| 1990 | 1 | 14 | 13 | 14 |
| 1989 | 1 | 12 | 12 | 12 |
| Totalt alle år | 1 | 32 | 30 | 54 |