| Taxon | Density |
| Thyasira Lamarck, 1818 | 724.4 |
| Minuspio cirrifera (Wirén, 1883) | 371.5 |
| Myriochele Malmgren, 1867 | 257 |
| Owenia fusiformis Delle Chiaje, 1844 | 239.9 |
| Levinsenia gracilis (Tauber, 1879) | 218.8 |
| Amphiura filiformis (O.F. Müller, 1776) | 190.5 |
| Ophiuroidea | 169.8 |
| Eudorella emarginata (Krøyer, 1846) | 151.4 |
| Aricidea catherinae Laubier, 1967 | 151.4 |
| Paramphinome jeffreysii (McIntosh, 1868) | 141.3 |
| Exogone (Exogone) verugera (Claparède, 1868) | 128.8 |
| Glycera Lamarck, 1818 | 120.2 |
| Caudofoveata | 89.1 |
| Harpinia antennaria Meinert, 1890 | 79.4 |
| Nemertea | 79.4 |
| Caulleriella Chamberlin, 1919 | 79.4 |
| Apistobranchus tullbergi (Théel, 1879) | 70.8 |
| Laonice sarsi Söderström, 1920 | 60.3 |
| Amphictene auricoma (O.F. Müller, 1776) | 60.3 |
| Anobothrus gracilis (Malmgren, 1866) | 60.3 |
| Antalis entalis (Linnaeus, 1758) | 60.3 |
| Nuculoma tenuis (Montagu, 1808) | 60.3 |
| Nothria conchylega (Sars, 1835) | 60.3 |
| Eriopisa elongata (Bruzelius, 1859) | 50.1 |
| Thyasira ferruginea (Locard, 1886) | 50.1 |
| Amythasides macroglossus Eliason, 1955 | 50.1 |
| Streblosoma intestinalis [auct. misspelling] | 39.8 |
| Diplocirrus glaucus (Malmgren, 1867) | 39.8 |
| Nephtys hombergii Savigny in Lamarck, 1818 | 39.8 |
| Phoronis Wright, 1856 | 39.8 |
| Urothoe elegans Spence Bate, 1857 | 30.2 |
| Cylichna cylindracea (Pennant, 1777) | 30.2 |
| Limatula gwyni (Sykes, 1903) | 30.2 |
| Capitellidae Grube, 1862 | 30.2 |
| Spiophanes kroyeri Grube, 1860 | 30.2 |
| Scoloplos armiger (Müller, 1776) | 30.2 |
| Anthozoa | 30.2 |
| Pholoe Johnston, 1839 | 30.2 |
| Chaetozone setosa Malmgren, 1867 | 20 |
| Sabellidae Latreille, 1825 | 20 |
| Glycera alba (O.F. Müller, 1776) | 20 |
| Glycinde nordmanni (Malmgren, 1866) | 20 |
| Polydora (Polydora) socialis (Schmarda, 1861) | 20 |
| Aonides paucibranchiata Southern, 1914 | 20 |
| Eclysippe vanelli (Fauvel, 1936) | 20 |
| Philine quadrata (S. V. Wood, 1839) | 10 |
| Amphiura chiajei Forbes, 1843 | 10 |
| Psammechinus miliaris (P.L.S. Müller, 1771) | 10 |
| Molgula Forbes, 1848 | 10 |
| Timoclea ovata (Pennant, 1777) | 10 |
| Leucon (Leucon) nasica (Krøyer, 1841) | 10 |
| Lamprops fasciatus G.O. Sars, 1863 | 10 |
| Diastyloides biplicatus (Sars G.O., 1865) | 10 |
| Notomastus latericeus Sars, 1851 | 10 |
| Praxillella affinis (M. Sars in G.O. Sars, 1872) | 10 |
| Pseudopolydora Czerniavsky, 1881 | 10 |
| Spiophanes bombyx (Claparède, 1870) | 10 |
| Lumbrineris latreilli Audouin & Milne Edwards, 1833 | 10 |
| Goniada maculata Örsted, 1843 | 10 |
| Anaitides maculata (Linnaeus, 1767) | 10 |
| Terebellides stroemii Sars, 1835 | 10 |
| Pista cristata (Müller, 1776) | 10 |
| Rhodine gracilior Tauber, 1879 | 10 |
