| Taxon | Density |
| Amphiura filiformis (O.F. Müller, 1776) | 310.7 |
| Phoronis Wright, 1856 | 194.7 |
| Mysella bidentata (Montagu, 1803) | 77.7 |
| Nucula nitidosa Winckworth, 1930 | 66.6 |
| Harpinia antennaria Meinert, 1890 | 62.9 |
| Hyala vitrea (Montagu, 1803) | 51.3 |
| Callianassa subterranea (Montagu, 1808) | 47.4 |
| Corbula gibba (Olivi, 1792) | 34 |
| Levinsenia gracilis (Tauber, 1879) | 33.1 |
| Pholoe Johnston, 1839 | 30.2 |
| Ophiura albida Forbes, 1839 | 29 |
| Lunatia poliana (Della Chiaje, 1826) | 26.9 |
| Arctica islandica (Linnaeus, 1767) | 23.4 |
| Chamelea gallina (Linnaeus, 1758) | 23.4 |
| Synelmis klatti (Friedrich, 1950) | 23.4 |
| Chaetozone setosa Malmgren, 1867 | 20 |
| Cylichna cylindracea (Pennant, 1777) | 20 |
| Spiophanes bombyx (Claparède, 1870) | 17 |
| Eudorella truncatula (Bate, 1856) | 16.6 |
| Tellimya ferruginosa (Montagu, 1808) | 16.6 |
| Processa nouveli holthuisi Al-Adhub & Williamson, 1975 | 15.8 |
| Echinocardium cordatum (Pennant, 1777) | 15.7 |
| Nephtys hombergii Savigny in Lamarck, 1818 | 14 |
| Chaetopterus variopedatus (Renier, 1804) | 13.2 |
| Nuculoma tenuis (Montagu, 1808) | 13.2 |
| Nemertea | 13.2 |
| Amphictene auricoma (O.F. Müller, 1776) | 10.6 |
| Lumbrineris latreilli Audouin & Milne Edwards, 1833 | 9 |
| Harmothoe impar (Johnston, 1839) | 7.9 |
| Ampharete finmarchica (M. Sars, 1865) | 7.9 |
| Capitellidae Grube, 1862 | 6.8 |
| Notomastus latericeus Sars, 1851 | 6.8 |
| Anthozoa | 6.8 |
| Echiurus echiurus (Pallas, 1766) | 6.8 |
| Caulleriella Chamberlin, 1919 | 6.8 |
| Gattyana cirrhosa (Pallas, 1766) | 6.8 |
| Ophiodromus flexuosus (Delle Chiaje, 1827) | 6.8 |
| Perioculodes longimanus (Spence Bate & Westwood, 1868) | 6.8 |
| Dosinia lupinus (Linnaeus, 1758) | 6.8 |
| Turritella communis Risso, 1826 | 6.8 |
| Vitreolina philippi (de Rayneval & Ponzi, 1854) | 3.3 |
| Enteropneusta | 3.3 |
| Pelonaia corrugata Goodsir & Forbes, 1841 | 3.3 |
| Lepton squamosum (Montagu, 1803) | 3.3 |
| Polydora guillei Laubier & Ramos, 1974 | 3.3 |
| Sipuncula | 3.3 |
| Diastylis bradyi Norman, 1879 | 3.3 |
| Diastylis laevis Norman, 1869 | 3.3 |
| Leucothoe procera Spence Bate, 1857 | 3.3 |
| Gastrosaccus spinifer (Goës, 1864) | 3.3 |
| Ampelisca tenuicornis Liljeborg, 1856 | 3.3 |
| Harmothoe antilopes McIntosh, 1876 | 3.3 |
| Ione thoracica (Montagu, 1808) | 3.3 |
| Lagis koreni Malmgren, 1866 | 3.3 |
| Sthenelais limicola (Ehlers, 1864) | 3.3 |
| Enipo kinbergi Malmgren, 1865 | 3.3 |
| Eunereis longissima (Johnston, 1840) | 3.3 |
| Lumbrineris hibernica McIntosh, 1903 | 3.3 |
| Ophelina acuminata Örsted, 1843 | 3.3 |
| Owenia fusiformis Delle Chiaje, 1844 | 3.3 |
| Anobothrus gracilis (Malmgren, 1866) | 3.3 |
| Anaitides groenlandica (Örsted, 1842) | 3.3 |
| Aphrodita aculeata Linnaeus, 1758 | 3.3 |
| Glycinde nordmanni (Malmgren, 1866) | 3.3 |
| Goniada maculata Örsted, 1843 | 3.3 |
