Species: Hydroporus obscurus
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 1992 | 1 | 2 | 2 | 4 |
| 1991 | 1 | 6 | 6 | 6 |
| 1990 | 1 | 4 | 4 | 5 |
| 1989 | 1 | 4 | 4 | 4 |
| Totalt alle år | 1 | 11 | 11 | 19 |
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 1992 | 1 | 2 | 2 | 4 |
| 1991 | 1 | 6 | 6 | 6 |
| 1990 | 1 | 4 | 4 | 5 |
| 1989 | 1 | 4 | 4 | 4 |
| Totalt alle år | 1 | 11 | 11 | 19 |