Klasse: Mangebørstemark (Polychaeta)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2023 | 1 | 1 | 1 | 1 |
| 2022 | 1 | 1 | 1 | 3 |
| 2021 | 3 | 3 | 3 | 5 |
| 2020 | 1 | 5 | 4 | 5 |
| 2019 | 3 | 5 | 5 | 6 |
| 2018 | 4 | 9 | 7 | 17 |
| 2017 | 2 | 2 | 2 | 3 |
| 2016 | 5 | 9 | 9 | 13 |
| 2015 | 5 | 8 | 7 | 21 |
| 2014 | 7 | 13 | 9 | 31 |
| 2013 | 4 | 9 | 9 | 15 |
| 2012 | 1 | 1 | 1 | 2 |
| 2011 | 1 | 1 | 1 | 1 |
| 2010 | 3 | 4 | 4 | 5 |
| 2009 | 1 | 2 | 1 | 3 |
| 2008 | 2 | 2 | 2 | 3 |
| 2007 | 1 | 2 | 2 | 4 |
| 2006 | 3 | 3 | 2 | 5 |
| 2005 | 2 | 4 | 3 | 10 |
| 2004 | 4 | 9 | 6 | 18 |
| 2003 | 2 | 6 | 5 | 19 |
| 2002 | 2 | 6 | 6 | 9 |
| 2001 | 7 | 15 | 15 | 52 |
| 2000 | 4 | 14 | 14 | 29 |
| 1999 | 3 | 14 | 13 | 24 |
| 1998 | 1 | 36 | 33 | 71 |
| 1997 | 2 | 46 | 44 | 145 |
| 1996 | 3 | 128 | 130 | 376 |
| 1995 | 2 | 138 | 129 | 518 |
| 1994 | 8 | 169 | 162 | 430 |
| 1993 | 2 | 198 | 189 | 555 |
| Totalt alle år | 12 | 386 | 358 | 2399 |