| Taxon | Density |
| Thyasira Lamarck, 1818 | 1584.9 |
| Myriochele Malmgren, 1867 | 446.7 |
| Glycera lapidum Quatrefages, 1866 | 363.1 |
| Ampharetidae Malmgren, 1866 | 302 |
| Exogone (Exogone) verugera (Claparède, 1868) | 269.2 |
| Pulsellum Stoliczka, 1868 | 251.2 |
| Caulleriella Chamberlin, 1919 | 190.5 |
| Nothria conchylega (Sars, 1835) | 169.8 |
| Ophiuroidea | 169.8 |
| Owenia fusiformis Delle Chiaje, 1844 | 151.4 |
| Aricidea catherinae Laubier, 1967 | 151.4 |
| Pholoe Johnston, 1839 | 128.8 |
| Streblosoma intestinalis [auct. misspelling] | 109.6 |
| Nemertea | 89.1 |
| Portlandia philippiana (Nyst, 1845) | 79.4 |
| Abra nitida (O. F. Müller, 1776) | 79.4 |
| Thyasira ferruginea (Locard, 1886) | 79.4 |
| Amphictene auricoma (O.F. Müller, 1776) | 79.4 |
| Pseudopolydora Czerniavsky, 1881 | 79.4 |
| Spiophanes kroyeri Grube, 1860 | 70.8 |
| Minuspio cirrifera (Wirén, 1883) | 70.8 |
| Echinocardium flavescens (O.F. Müller, 1776) | 70.8 |
| Lumbrineris latreilli Audouin & Milne Edwards, 1833 | 50.1 |
| Notomastus latericeus Sars, 1851 | 50.1 |
| Eclysippe vanelli (Fauvel, 1936) | 39.8 |
| Caudofoveata | 39.8 |
| Cylichnina umbilicata (Montagu, 1803) | 30.2 |
| Timoclea ovata (Pennant, 1777) | 30.2 |
| Amphiura filiformis (O.F. Müller, 1776) | 30.2 |
| Scalibregma inflatum Rathke, 1843 | 30.2 |
| Levinsenia gracilis (Tauber, 1879) | 30.2 |
| Laonice sarsi Söderström, 1920 | 30.2 |
| Polydora (Polydora) socialis (Schmarda, 1861) | 20 |
| Praxillella affinis (M. Sars in G.O. Sars, 1872) | 20 |
| Lagis koreni Malmgren, 1866 | 20 |
| Chaetoparia nilssoni Malmgren, 1867 | 20 |
| Aphrodita aculeata Linnaeus, 1758 | 20 |
| Hyalinoecia tubicola (O.F. Müller, 1776) | 20 |
| Terebellides stroemii Sars, 1835 | 20 |
| Philine scabra (O. F. Müller, 1784) | 20 |
| Hiatella arctica (Linnaeus, 1767) | 20 |
| Arctica islandica (Linnaeus, 1767) | 20 |
| Pista cristata (Müller, 1776) | 20 |
| Ampelisca tenuicornis Liljeborg, 1856 | 20 |
| Montacuta substriata (Montagu, 1808) | 10 |
| Tridonta elliptica (T. Brown, 1827) | 10 |
| Parvicardium minimum (R. A. Philippi, 1836) | 10 |
| Kelliella miliaris (R. A. Philippi, 1844) | 10 |
| Nuculoma tenuis (Montagu, 1808) | 10 |
| Cuspidaria rostrata (L. Spengler, 1793) | 10 |
| Cuspidaria costellata (Deshayes, 1835) | 10 |
| Phoronis Wright, 1856 | 10 |
| Ophiura affinis Lütken, 1858 | 10 |
| Ascidiacea | 10 |
| Sipuncula | 10 |
| Trichobranchus glacialis Malmgren, 1866 | 10 |
| Mugga wahrbergi Eliason, 1955 | 10 |
| Phtisica marina Slabber, 1769 | 10 |
| Bodotria arenosa Goodsir, 1843 | 10 |
| Perioculodes longimanus (Spence Bate & Westwood, 1868) | 10 |
| Calocaris macandreae Bell, 1846 | 10 |
| Westwoodilla caecula (Spence Bate, 1857) | 10 |
| Acidostoma obesum (Spence Bate & Westwood, 1861) | 10 |
| Ampelisca gibba G.O. Sars, 1883 | 10 |
| Spiophanes bombyx (Claparède, 1870) | 10 |
