Species: Vannskorpion (Nepa cinerea)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2022 | 1 | 1 | 1 | 1 |
| 2013 | 1 | 2 | 2 | 6 |
| 2012 | 1 | 1 | 1 | 1 |
| 2010 | 1 | 1 | 1 | 1 |
| 2008 | 1 | 1 | 1 | 1 |
| 2007 | 1 | 1 | 1 | 1 |
| 2004 | 1 | 3 | 3 | 3 |
| 2002 | 1 | 2 | 2 | 2 |
| 2001 | 1 | 1 | 1 | 1 |
| 2000 | 1 | 1 | 1 | 1 |
| 1997 | 1 | 1 | 1 | 1 |
| 1996 | 1 | 3 | 3 | 3 |
| 1995 | 1 | 4 | 4 | 4 |
| 1994 | 1 | 4 | 4 | 4 |
| 1993 | 1 | 8 | 8 | 9 |
| 1992 | 1 | 10 | 10 | 10 |
| 1991 | 1 | 7 | 8 | 8 |
| 1990 | 1 | 7 | 7 | 8 |
| 1989 | 1 | 10 | 10 | 10 |
| Totalt alle år | 1 | 41 | 42 | 75 |