| Taxon | Density |
| Amphiura filiformis (O.F. Müller, 1776) | 850.8 |
| Phoronis Wright, 1856 | 514.9 |
| Mysella bidentata (Montagu, 1803) | 230.7 |
| Pholoe Johnston, 1839 | 111.2 |
| Lunatia poliana (Della Chiaje, 1826) | 68.6 |
| Nephtys hombergii Savigny in Lamarck, 1818 | 68.5 |
| Nuculoma tenuis (Montagu, 1808) | 54.4 |
| Eudorellopsis deformis (Krøyer, 1846) | 43.7 |
| Spiophanes bombyx (Claparède, 1870) | 43.3 |
| Magelona F. Müller, 1858 | 36.9 |
| Spio filicornis (Müller, 1776) | 23.4 |
| Phaxas pellucidus (Pennant, 1777) | 23.4 |
| Abra prismatica (Montagu, 1808) | 23.2 |
| Cylichna cylindracea (Pennant, 1777) | 20.1 |
| Nucula nitidosa Winckworth, 1930 | 20 |
| Ophiura albida Forbes, 1839 | 19.7 |
| Bathyporeia tenuipes Meinert, 1877 | 18.7 |
| Nemertea | 18.1 |
| Scoloplos armiger (Müller, 1776) | 17 |
| Callianassa subterranea (Montagu, 1808) | 16.6 |
| Synelmis klatti (Friedrich, 1950) | 13.2 |
| Nephtys Cuvier, 1817 | 13.2 |
| Dosinia lupinus (Linnaeus, 1758) | 13.2 |
| Chamelea gallina (Linnaeus, 1758) | 11.9 |
| Ampelisca brevicornis (A. Costa, 1853) | 11.5 |
| Perioculodes longimanus (Spence Bate & Westwood, 1868) | 10 |
| Echinocardium cordatum (Pennant, 1777) | 8.4 |
| Tellimya ferruginosa (Montagu, 1808) | 7.1 |
| Glycinde nordmanni (Malmgren, 1866) | 7 |
| Goniada maculata Örsted, 1843 | 6.8 |
| Echiurus echiurus (Pallas, 1766) | 6.8 |
| Sthenelais limicola (Ehlers, 1864) | 6.8 |
| Thyasira Lamarck, 1818 | 6.8 |
| Chaetoderma nitidulum Lovén, 1844 | 6.8 |
| Vitreolina philippi (de Rayneval & Ponzi, 1854) | 6.8 |
| Enteropneusta | 6.8 |
| Arctica islandica (Linnaeus, 1767) | 6.5 |
| Aphrodita aculeata Linnaeus, 1758 | 5.2 |
| Harpinia antennaria Meinert, 1890 | 4.9 |
| Anthozoa | 4.9 |
| Magelona alleni Wilson, 1958 | 3.3 |
| Spiophanes kroyeri Grube, 1860 | 3.3 |
| Lanice conchilega (Pallas, 1766) | 3.3 |
| Hypereteone lactea (Claparède, 1868) | 3.3 |
| Anaitides subulifera Eliason, 1962 | 3.3 |
| Ophelina acuminata Örsted, 1843 | 3.3 |
| Scalibregma inflatum Rathke, 1843 | 3.3 |
| Myriochele Malmgren, 1867 | 3.3 |
| Lagis koreni Malmgren, 1866 | 3.3 |
| Hippomedon denticulatus (Spence Bate, 1857) | 3.3 |
| Diastylis lucifera (Krøyer, 1837) | 3.3 |
| Glycera alba (O.F. Müller, 1776) | 3.3 |
| Diplocirrus glaucus (Malmgren, 1867) | 3.3 |
| Capitellidae Grube, 1862 | 3.3 |
| Nephtys caeca (Fabricius, 1780) | 3.3 |
| Gari fervensis (Gmelin, 1791) | 3.3 |
| Ampelisca tenuicornis Liljeborg, 1856 | 3.3 |
| Eudorella truncatula (Bate, 1856) | 3.2 |
| Diastylis bradyi Norman, 1879 | 3 |
| Chaetozone setosa Malmgren, 1867 | 3 |
| Montacuta substriata (Montagu, 1808) | 3 |
| Abra alba (W. Wood, 1802) | 3 |
| Fabulina fabula (Gmelin, 1791) | 3 |
| Dosinia exoleta (Linnaeus, 1758) | 3 |
| Acteon tornatilis (Linnaeus, 1758) | 3 |
| Echinocardium flavescens (O.F. Müller, 1776) | 3 |
