Genus: Bekkedøgnfluer (Baetis)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2014 | 1 | 1 | 1 | 2 |
| 1994 | 1 | 1 | 1 | 1 |
| 1993 | 3 | 3 | 3 | 5 |
| 1992 | 2 | 2 | 2 | 2 |
| 1991 | 1 | 1 | 1 | 1 |
| 1990 | 5 | 6 | 6 | 6 |
| Totalt alle år | 7 | 13 | 13 | 17 |
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Responsible editor: Doris Jorde