| Taxon | Density |
| Aricidea simonae Laubier & Ramos, 1974 | 67.6 |
| Ophelia borealis Quatrefages, 1866 | 43.7 |
| Amphiura filiformis (O.F. Müller, 1776) | 39.8 |
| Echinocyamus pusillus (O.F. Müller, 1776) | 25.1 |
| Myriochele Malmgren, 1867 | 23.4 |
| Anthozoa | 22.4 |
| Goniada maculata Örsted, 1843 | 13.2 |
| Phoronis Wright, 1856 | 10 |
| Nemertea | 10 |
| Pholoe Johnston, 1839 | 8.3 |
| Scoloplos armiger (Müller, 1776) | 8.3 |
| Spiophanes bombyx (Claparède, 1870) | 8.3 |
| Chaetozone setosa Malmgren, 1867 | 6.8 |
| Spiophanes kroyeri Grube, 1860 | 5 |
| Glycera lapidum Quatrefages, 1866 | 5 |
| Anobothrus gracilis (Malmgren, 1866) | 5 |
| Lanice conchilega (Pallas, 1766) | 5 |
| Phoronis muelleri Selys-Longchamps, 1903 | 5 |
| Cochlodesma (Bontaea) praetenue (Pulteney, 1799) | 5 |
| Urothoe elegans Spence Bate, 1857 | 5 |
| Mysella bidentata (Montagu, 1803) | 5 |
| Spisula elliptica (T. Brown, 1827) | 3.3 |
| Abludomelita obtusata (Montagu, 1813) | 3.3 |
| Ophiura albida Forbes, 1839 | 3.3 |
| Owenia fusiformis Delle Chiaje, 1844 | 3.3 |
| Sthenelais limicola (Ehlers, 1864) | 3.3 |
| Nephtys hombergii Savigny in Lamarck, 1818 | 3.3 |
| Syllidae Grube, 1850 | 3.3 |
| Nephtys ciliata (Müller, 1788) | 1.7 |
| Glycera rouxii Audouin & Milne Edwards, 1833 | 1.7 |
| Kefersteinia cirrhata (Keferstein, 1862) | 1.7 |
| Synelmis klatti (Friedrich, 1950) | 1.7 |
| Polycirrus medusa Grube, 1850 | 1.7 |
| Hydroides norvegica Gunnerus, 1768 | 1.7 |
| Pomatoceros triqueter (Linnaeus, 1758) | 1.7 |
| Anaitides rosea (McIntosh, 1877) | 1.7 |
| Magelona alleni Wilson, 1958 | 1.7 |
| Spiochaetopterus typicus M Sars, 1856 | 1.7 |
| Tharyx Webster & Benedict, 1887 | 1.7 |
| Diplocirrus glaucus (Malmgren, 1867) | 1.7 |
| Notomastus latericeus Sars, 1851 | 1.7 |
| Praxillura longissima Arwidsson, 1906 | 1.7 |
| Aricidea suecica Eliason, 1920 | 1.7 |
| Aricidea cerrutii Laubier, 1966 | 1.7 |
| Levinsenia gracilis (Tauber, 1879) | 1.7 |
| Harmothoe lunulata (Delle Chiaje, 1830) | 1.7 |
| Minuspio cirrifera (Wirén, 1883) | 1.7 |
| Echinocardium flavescens (O.F. Müller, 1776) | 1.7 |
| Holothuroidea | 1.7 |
| Cylichna cylindracea (Pennant, 1777) | 1.7 |
| Gammaropsis maculata (Johnston, 1828) | 1.7 |
| Aoridae Stebbing, 1899 | 1.7 |
| Antalis entalis (Linnaeus, 1758) | 1.7 |
| Lucinoma borealis (Linnaeus, 1767) | 1.7 |
| Dosinia exoleta (Linnaeus, 1758) | 1.7 |
| Atylus vedlomensis (Spence Bate & Westwood, 1862) | 1.7 |
