Species: Caenis horaria
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 1996 | 1 | 1 | 1 | 1 |
| 1995 | 1 | 2 | 2 | 2 |
| 1994 | 1 | 3 | 3 | 3 |
| 1993 | 1 | 12 | 13 | 13 |
| 1992 | 1 | 7 | 7 | 8 |
| 1991 | 1 | 14 | 13 | 15 |
| 1990 | 1 | 14 | 14 | 15 |
| 1989 | 1 | 11 | 11 | 11 |
| Totalt alle år | 1 | 32 | 31 | 68 |
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 1996 | 1 | 1 | 1 | 1 |
| 1995 | 1 | 2 | 2 | 2 |
| 1994 | 1 | 3 | 3 | 3 |
| 1993 | 1 | 12 | 13 | 13 |
| 1992 | 1 | 7 | 7 | 8 |
| 1991 | 1 | 14 | 13 | 15 |
| 1990 | 1 | 14 | 14 | 15 |
| 1989 | 1 | 11 | 11 | 11 |
| Totalt alle år | 1 | 32 | 31 | 68 |