Family: Lumbriculidae
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2004 | 1 | 1 | 1 | 1 |
| 1999 | 1 | 1 | 1 | 1 |
| 1993 | 2 | 19 | 19 | 19 |
| 1992 | 2 | 20 | 20 | 23 |
| 1991 | 2 | 22 | 20 | 30 |
| 1990 | 2 | 28 | 27 | 40 |
| 1989 | 1 | 41 | 40 | 41 |
| Totalt alle år | 2 | 75 | 73 | 155 |
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Responsible editor: Doris Jorde