| Taxon | Density |
| Nematoda | 400.5 |
| Copepoda | 186 |
| Turbellaria | 31 |
| Intermedopsyllus intermedius (Scott T. & Scott A., 1895) | 16 |
| Leptastacus laticaudatus Nicholls, 1935 | 16 |
| Gastrotricha | 13.5 |
| Scottopsyllus (Scottopsyllus) minor (Scott, T. & Scott A., 1895) | 13 |
| Paramesochra mielkei Huys, 1987 | 12 |
| Kliopsyllus constrictus (Nicholls, 1935) | 11 |
| Leptopontia curvicauda Scott T., 1902 | 11 |
| Arenocaris bifida Nicholls, 1935 | 9 |
| Evansula pygmaea (Scott T., 1903) | 8 |
| Kliopsyllus Apostolov & Marinov, 1988 | 8 |
| Cnidaria | 8 |
| Kliopsyllus holsaticus (Klie, 1929) | 7 |
| Pseudobradya minor (Scott T. & Scott A., 1896) | 6 |
| Metacyclopina brevisetosa Herbst, 1974 | 6 |
| Paramesochra similis Kunz, 1936 | 5 |
| Stenocaris minor (Scott T., 1893) | 5 |
| Syrticola flandricus Willems & Claeys, 1982 | 5 |
| Tardigrada | 5 |
| Kliopsyllus Apostolov & Marinov, 1988 | 5 |
| Paraleptastacus Wilson C.B., 1932 | 4 |
| 4 |
| Leptastacus Scott T., 1906 | 4 |
| Arenopontia Kunz, 1937 | 4 |
| Rhizothrix curvata Brady, 1880 | 4 |
| Protopsammotopa norvegica Geddes, 1968 | 4 |
| Apodopsyllus littoralis (Nicholls, 1939) | 4 |
| Kliopsyllus paraholsaticus Mielke, 1975 | 4 |
| Arenosetella germanica Kunz, 1937 | 3 |
| Boreopontia heipi Willems, 1981 | 3 |
| Cylindropsyllus remanei Kunz, 1949 | 3 |
| Paraleptastacus espinulatus Nicholls, 1935 | 3 |
| Parevansula Guille & Soyer, 1966 | 3 |
| Cyclopinidae Sars G.O., 1913 | 3 |
| Cylindropsyllidae Sars G.O., 1909 | 3 |
| Hastigerella Nicholls, 1935 | 3 |
| Leptastacus Scott T., 1906 | 3 |
| Leptastacus Scott T., 1906 | 3 |
| Paramesochra Scott T., 1892 | 3 |
| Scottopsyllus Apostolov & Marinov, 1988 | 3 |
| Leptastacus Scott T., 1906 | 2 |
| Arenopontia Kunz, 1937 | 2 |
| Leptomesochra Sars G.O., 1911 | 2 |
| Stenocaris kliei Kunz, 1938 | 2 |
| Remanea arenicola Klie, 1929 | 2 |
| Kliopsyllus perharidiensis (Wells, 1963) | 2 |
| Halectinosoma herdmani (Scott T. & Scott A., 1896) | 2 |
| Polychaeta | 2 |
| Leptopsyllus (Leptopsyllus) elongatus Drzycimski, 1967 | 2 |
| Interleptomesochra eulitoralis (Noodt, 1952) | 1 |
| Pusillargillus nixe (Por, 1964) | 1 |
| Cyclopina Claus, 1863 | 1 |
| Leptastacus Scott T., 1906 | 1 |
| Acarina | 1 |
| Paramesochridae Lang, 1944 | 1 |
