Family: Thalassiosiraceae
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2014 | 4 | 1 | 1 | 8 |
| 2004 | 1 | 1 | 1 | 1 |
| 1996 | 3 | 4 | 4 | 4 |
| 1994 | 2 | 11 | 11 | 13 |
| 1993 | 2 | 6 | 6 | 7 |
| 1992 | 1 | 1 | 1 | 1 |
| 1991 | 2 | 19 | 19 | 20 |
| 1990 | 3 | 31 | 32 | 60 |
| 1989 | 4 | 26 | 26 | 27 |
| Totalt alle år | 9 | 62 | 65 | 141 |
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2014 | 4 | 1 | 1 | 8 |
| 2004 | 1 | 1 | 1 | 1 |
| 1996 | 3 | 4 | 4 | 4 |
| 1994 | 2 | 11 | 11 | 13 |
| 1993 | 2 | 6 | 6 | 7 |
| 1992 | 1 | 1 | 1 | 1 |
| 1991 | 2 | 19 | 19 | 20 |
| 1990 | 3 | 31 | 32 | 60 |
| 1989 | 4 | 26 | 26 | 27 |
| Totalt alle år | 9 | 62 | 65 | 141 |