Phylum: Echinoderms (Echinodermata)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|
| 2024 | 3 | 3 | 2 | 4 |
| 2023 | 3 | 3 | 2 | 8 |
| 2022 | 6 | 6 | 5 | 21 |
| 2021 | 5 | 7 | 7 | 24 |
| 2020 | 8 | 11 | 8 | 47 |
| 2019 | 12 | 15 | 10 | 140 |
| 2018 | 12 | 15 | 13 | 88 |
| 2017 | 8 | 14 | 11 | 75 |
| 2016 | 14 | 28 | 18 | 179 |
| 2015 | 11 | 28 | 15 | 147 |
| 2014 | 16 | 28 | 17 | 194 |
| 2013 | 7 | 25 | 15 | 82 |
| 2012 | 7 | 17 | 6 | 47 |
| 2011 | 5 | 18 | 3 | 46 |
| 2010 | 5 | 19 | 5 | 50 |
| 2009 | 6 | 7 | 5 | 16 |
| 2008 | 2 | 3 | 3 | 7 |
| 2007 | 5 | 5 | 6 | 17 |
| 2006 | 6 | 6 | 6 | 19 |
| 2005 | 4 | 6 | 5 | 29 |
| 2004 | 6 | 11 | 8 | 47 |
| 2003 | 4 | 11 | 11 | 68 |
| 2002 | 5 | 11 | 11 | 30 |
| 2001 | 3 | 17 | 17 | 62 |
| 2000 | 5 | 22 | 21 | 78 |
| 1999 | 6 | 26 | 26 | 152 |
| 1998 | 4 | 53 | 52 | 345 |
| 1997 | 8 | 85 | 84 | 501 |
| 1996 | 8 | 166 | 165 | 1395 |
| 1995 | 6 | 182 | 168 | 1205 |
| 1994 | 8 | 237 | 224 | 1644 |
| 1993 | 4 | 272 | 253 | 1950 |
| 1991 | 1 | 1 | 1 | 1 |
| Totalt alle år | 23 | 526 | 440 | 8718 |