Species: Brown trout (Salmo trutta)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2023 | 1 | 1 | 1 | 4 |
| 2022 | 1 | 1 | 1 | 1 |
| 2020 | 1 | 1 | 1 | 1 |
| 2019 | 1 | 1 | 1 | 1 |
| 2018 | 1 | 1 | 1 | 1 |
| 2017 | 1 | 2 | 2 | 2 |
| 2016 | 1 | 1 | 1 | 1 |
| 2015 | 1 | 2 | 1 | 5 |
| 2014 | 1 | 3 | 3 | 4 |
| 2013 | 1 | 4 | 4 | 5 |
| 2012 | 1 | 4 | 4 | 5 |
| 2011 | 1 | 3 | 2 | 6 |
| 2010 | 1 | 3 | 3 | 5 |
| 2009 | 1 | 2 | 2 | 3 |
| 2008 | 1 | 2 | 2 | 5 |
| 2007 | 1 | 7 | 7 | 7 |
| 2006 | 1 | 4 | 4 | 5 |
| 2005 | 1 | 8 | 8 | 17 |
| 2004 | 1 | 6 | 6 | 8 |
| 2003 | 1 | 5 | 5 | 6 |
| 2002 | 1 | 1 | 1 | 1 |
| 2001 | 1 | 2 | 2 | 4 |
| 2000 | 1 | 5 | 5 | 10 |
| 1999 | 1 | 4 | 4 | 9 |
| 1998 | 1 | 6 | 6 | 15 |
| 1997 | 1 | 14 | 13 | 28 |
| 1996 | 1 | 14 | 14 | 27 |
| 1995 | 1 | 27 | 27 | 58 |
| 1994 | 1 | 50 | 49 | 89 |
| 1993 | 1 | 35 | 34 | 66 |
| 1992 | 1 | 7 | 8 | 10 |
| 1991 | 1 | 12 | 12 | 23 |
| 1990 | 1 | 22 | 22 | 25 |
| 1989 | 1 | 58 | 57 | 64 |
| Totalt alle år | 1 | 218 | 209 | 521 |