| Taxon | Density |
| Amphiura filiformis (O.F. Müller, 1776) | 539.7 |
| Mysella bidentata (Montagu, 1803) | 426.5 |
| Scoloplos armiger (Müller, 1776) | 157.9 |
| Magelona F. Müller, 1858 | 110.8 |
| Harpinia antennaria Meinert, 1890 | 90.3 |
| Eudorellopsis deformis (Krøyer, 1846) | 89.3 |
| Eudorella truncatula (Bate, 1856) | 50.5 |
| Sipuncula | 50.1 |
| Pholoe Johnston, 1839 | 47.5 |
| Arctica islandica (Linnaeus, 1767) | 45.8 |
| Nemertea | 44 |
| Phoronis Wright, 1856 | 38.9 |
| Nephtys hombergii Savigny in Lamarck, 1818 | 32.3 |
| Amphictene auricoma (O.F. Müller, 1776) | 30.2 |
| Spiophanes bombyx (Claparède, 1870) | 27.9 |
| Tharyx Webster & Benedict, 1887 | 24 |
| Chaetozone setosa Malmgren, 1867 | 23.4 |
| Gattyana cirrhosa (Pallas, 1766) | 23.4 |
| Callianassa subterranea (Montagu, 1808) | 23.4 |
| Nucula nitidosa Winckworth, 1930 | 22.8 |
| Ampelisca brevicornis (A. Costa, 1853) | 19.1 |
| Chaetopterus variopedatus (Renier, 1804) | 19.1 |
| Bathyporeia elegans Watkin, 1938 | 17.9 |
| Urothoe elegans Spence Bate, 1857 | 17 |
| Chamelea gallina (Linnaeus, 1758) | 17 |
| Synelmis klatti (Friedrich, 1950) | 16.6 |
| Echinocardium cordatum (Pennant, 1777) | 14 |
| Dosinia lupinus (Linnaeus, 1758) | 13.2 |
| Glycinde nordmanni (Malmgren, 1866) | 13.2 |
| Echiurus echiurus (Pallas, 1766) | 13.2 |
| Goniada maculata Örsted, 1843 | 11.3 |
| Cylichna cylindracea (Pennant, 1777) | 11.3 |
| Ampelisca tenuicornis Liljeborg, 1856 | 10 |
| Tellimya ferruginosa (Montagu, 1808) | 10 |
| Glycera alba (O.F. Müller, 1776) | 9 |
| Aphrodita aculeata Linnaeus, 1758 | 7.9 |
| Aricidea catherinae Laubier, 1967 | 7.9 |
| Myriochele Malmgren, 1867 | 7.9 |
| Ione thoracica (Montagu, 1808) | 7.9 |
| Corystes cassivelaunus (Pennant, 1777) | 7.9 |
| Mysia undata (Pennant, 1777) | 7.9 |
| Corbula gibba (Olivi, 1792) | 7.9 |
| Gyptis capensis (Day, 1963) | 7.4 |
| Ophiodromus flexuosus (Delle Chiaje, 1827) | 6.8 |
| Sthenelais limicola (Ehlers, 1864) | 6.8 |
| Owenia fusiformis Delle Chiaje, 1844 | 6.8 |
| Capitellidae Grube, 1862 | 6.8 |
| Notomastus latericeus Sars, 1851 | 6.8 |
| Anthozoa | 6.8 |
| Lunatia poliana (Della Chiaje, 1826) | 6.8 |
| Abra prismatica (Montagu, 1808) | 6.8 |
| Phaxas pellucidus (Pennant, 1777) | 5.6 |
| Anaitides subulifera Eliason, 1962 | 5.6 |
| Lagis koreni Malmgren, 1866 | 5.6 |
| Exogone (Parexogone) hebes (Webster & Benedict, 1884) | 3.3 |
| Diastylis bradyi Norman, 1879 | 3.3 |
| Perioculodes longimanus (Spence Bate & Westwood, 1868) | 3.3 |
| Synchelidium haplocheles (Grube, 1864) | 3.3 |
| Scolelepis bonnieri (Mesnil, 1896) | 3.3 |
| Spio filicornis (Müller, 1776) | 3.3 |
| Scalibregma inflatum Rathke, 1843 | 3.3 |
| Sigalion mathildae Audouin & Milne Edwards, 1832 | 3.3 |
| Gari fervensis (Gmelin, 1791) | 3.3 |
| Abra alba (W. Wood, 1802) | 3.3 |
| Cheirocratus Norman, 1867 | 3.3 |
| Hippomedon denticulatus (Spence Bate, 1857) | 3.3 |
| Argissa hamatipes (Norman, 1869) | 3.3 |
| Upogebia deltaura (Leach, 1816) | 3.3 |
| Nuculoma tenuis (Montagu, 1808) | 3.3 |
