| Taxon | Density |
| Thyasira Lamarck, 1818 | 323.6 |
| Paradoneis lyra (Southern, 1914) | 288.4 |
| Capitellidae Grube, 1862 | 229.1 |
| Harpinia antennaria Meinert, 1890 | 182 |
| Aricidea catherinae Laubier, 1967 | 100 |
| Paramphinome jeffreysii (McIntosh, 1868) | 89.1 |
| Goniada maculata Örsted, 1843 | 79.4 |
| Minuspio cirrifera (Wirén, 1883) | 79.4 |
| Polydora (Polydora) socialis (Schmarda, 1861) | 60.3 |
| Notomastus latericeus Sars, 1851 | 60.3 |
| Sabellidae Latreille, 1825 | 60.3 |
| Eudorella emarginata (Krøyer, 1846) | 50.1 |
| Eriopisa elongata (Bruzelius, 1859) | 50.1 |
| Amphiura filiformis (O.F. Müller, 1776) | 50.1 |
| Glycera Lamarck, 1818 | 39.8 |
| Caulleriella Chamberlin, 1919 | 39.8 |
| Exogone (Exogone) verugera (Claparède, 1868) | 39.8 |
| Clymenura borealis (Arwidsson, 1906) | 39.8 |
| Levinsenia gracilis (Tauber, 1879) | 39.8 |
| Lumbrineris latreilli Audouin & Milne Edwards, 1833 | 30.2 |
| Pholoe Johnston, 1839 | 30.2 |
| Myriochele Malmgren, 1867 | 30.2 |
| Phoronis Wright, 1856 | 30.2 |
| Nemertea | 30.2 |
| Holothuroidea | 20 |
| Exogone (Parexogone) hebes (Webster & Benedict, 1884) | 20 |
| Limatula subauriculata (Montagu, 1808) | 20 |
| Diplocirrus glaucus (Malmgren, 1867) | 20 |
| Nephtys paradoxa Malm, 1874 | 20 |
| Scolelepis tridentata (Southern, 1914) | 20 |
| Ophelina norvegica Støp-Bowitz, 1945 | 20 |
| Lumbrineris hibernica McIntosh, 1903 | 10 |
| Ophryotrocha longidentata Josefson, 1975 | 10 |
| Laonice sarsi Söderström, 1920 | 10 |
| Spiophanes kroyeri Grube, 1860 | 10 |
| Prionospio malmgreni Claparède, 1868 | 10 |
| Ophelina acuminata Örsted, 1843 | 10 |
| Nothria conchylega (Sars, 1835) | 10 |
| Goniada norvegica Örsted, 1845 | 10 |
| Ephesiella abyssorum (Hansen, 1878) | 10 |
| Ophiodromus flexuosus (Delle Chiaje, 1827) | 10 |
| Owenia fusiformis Delle Chiaje, 1844 | 10 |
| Amphictene auricoma (O.F. Müller, 1776) | 10 |
| Ampharetidae Malmgren, 1866 | 10 |
| Caudofoveata | 10 |
| Leucon (Leucon) nasica (Krøyer, 1841) | 10 |
| Gitana sarsi Boeck, 1871 | 10 |
| Byblis gaimardi (Krøyer, 1846) | 10 |
| Ophiuroidea | 10 |
| Amphiura chiajei Forbes, 1843 | 10 |
| Echinocardium flavescens (O.F. Müller, 1776) | 10 |
| Brissopsis lyrifera (Forbes, 1841) | 10 |
| Thyasira ferruginea (Locard, 1886) | 10 |
| Montacuta substriata (Montagu, 1808) | 10 |
| Tellimya tenella (Lovén, 1846) | 10 |
| Ampharete acutifrons (Grube, 1860) | 10 |
| Eclysippe vanelli (Fauvel, 1936) | 10 |
