Order: Tang (Fucales)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|
| 2024 | 5 | 3 | 3 | 20 |
| 2023 | 5 | 3 | 3 | 20 |
| 2022 | 5 | 5 | 5 | 49 |
| 2021 | 5 | 9 | 7 | 101 |
| 2020 | 5 | 19 | 12 | 148 |
| 2019 | 6 | 20 | 15 | 230 |
| 2018 | 6 | 16 | 13 | 191 |
| 2017 | 8 | 18 | 13 | 156 |
| 2016 | 7 | 21 | 19 | 230 |
| 2015 | 8 | 15 | 11 | 200 |
| 2014 | 11 | 28 | 18 | 170 |
| 2013 | 8 | 19 | 14 | 113 |
| 2012 | 8 | 5 | 5 | 61 |
| 2011 | 5 | 1 | 1 | 18 |
| 2010 | 5 | 5 | 4 | 20 |
| 2009 | 7 | 5 | 5 | 93 |
| 2008 | 8 | 5 | 4 | 70 |
| 2007 | 8 | 7 | 6 | 70 |
| 2006 | 7 | 8 | 7 | 84 |
| 2005 | 5 | 7 | 6 | 124 |
| 2004 | 9 | 17 | 11 | 249 |
| 2003 | 7 | 10 | 9 | 292 |
| 2002 | 6 | 12 | 12 | 191 |
| 2001 | 7 | 19 | 16 | 319 |
| 2000 | 6 | 29 | 28 | 537 |
| 1999 | 6 | 32 | 29 | 557 |
| 1998 | 5 | 60 | 60 | 1254 |
| 1997 | 9 | 101 | 94 | 2515 |
| 1996 | 6 | 163 | 159 | 4371 |
| 1995 | 5 | 202 | 187 | 5614 |
| 1994 | 5 | 261 | 246 | 7157 |
| 1993 | 5 | 284 | 265 | 7675 |
| Totalt alle år | 12 | 560 | 467 | 32899 |