| Taxon | Density |
| Scopelocheirus hopei (A. Costa in Hope, 1851) | 257 |
| Exogone (Exogone) verugera (Claparède, 1868) | 120.2 |
| Exogone (Parexogone) hebes (Webster & Benedict, 1884) | 89.1 |
| Echinocyamus pusillus (O.F. Müller, 1776) | 57.6 |
| Ophiura albida Forbes, 1839 | 50.1 |
| Ophelia borealis Quatrefages, 1866 | 48 |
| Aricidea cerrutii Laubier, 1966 | 30.2 |
| Thracia phaseolina (Lamarck, 1818) | 30.2 |
| Montacuta substriata (Montagu, 1808) | 30.2 |
| Antalis entalis (Linnaeus, 1758) | 25.1 |
| Glycera lapidum Quatrefages, 1866 | 20.9 |
| Chaetozone setosa Malmgren, 1867 | 20.1 |
| Spiophanes bombyx (Claparède, 1870) | 20.1 |
| Spio Fabricius, 1785 | 20 |
| Myriochele Malmgren, 1867 | 20 |
| Timoclea ovata (Pennant, 1777) | 20 |
| Ophiura affinis Lütken, 1858 | 20 |
| Nemertea | 20 |
| Hippomedon denticulatus (Spence Bate, 1857) | 15.1 |
| Capitellidae Grube, 1862 | 15.1 |
| Aricidea catherinae Laubier, 1967 | 12.5 |
| Nephtys longosetosa Örsted, 1842 | 12.5 |
| Amphiura filiformis (O.F. Müller, 1776) | 12.5 |
| Lunatia poliana (Della Chiaje, 1826) | 10 |
| Phoronis Wright, 1856 | 10 |
| Cochlodesma (Bontaea) praetenue (Pulteney, 1799) | 10 |
| Eulimidae R. A. Philippi, 1853 | 10 |
| Sipuncula | 10 |
| Eulalia mustela Pleijel, 1987 | 10 |
| Petalosarsia declivis (Sars, 1865) | 10 |
| Pontocrates Boeck, 1871 | 10 |
| Nuculoma tenuis (Montagu, 1808) | 10 |
| Abra prismatica (Montagu, 1808) | 10 |
| Aricidea suecica Eliason, 1920 | 10 |
| Spio filicornis (Müller, 1776) | 10 |
| Spiophanes kroyeri Grube, 1860 | 10 |
| Levinsenia gracilis (Tauber, 1879) | 10 |
| Paradoneis lyra (Southern, 1914) | 10 |
| Poecilochaetus serpens Allen, 1904 | 10 |
| Aonides paucibranchiata Southern, 1914 | 10 |
| Owenia fusiformis Delle Chiaje, 1844 | 10 |
| Mystides southerni (Banse, 1954) | 10 |
| Pholoe Johnston, 1839 | 7.5 |
| Eteone longa (Fabricius, 1780) | 7.5 |
| Bathyporeia elegans Watkin, 1938 | 7.5 |
| Echinocardium flavescens (O.F. Müller, 1776) | 7.5 |
| Glycera celtica O'Connor, 1987 | 7.1 |
| Glycinde nordmanni (Malmgren, 1866) | 5 |
| Goniada maculata Örsted, 1843 | 5 |
| Ophiodromus flexuosus (Delle Chiaje, 1827) | 5 |
| Anobothrus gracilis (Malmgren, 1866) | 5 |
| Travisia forbesii Johnston, 1840 | 5 |
| Notomastus latericeus Sars, 1851 | 5 |
| Maldanidae Malmgren, 1867 | 5 |
| Polydora (Polydora) caulleryi Mesnil, 1897 | 5 |
| Aricidea simonae Laubier & Ramos, 1974 | 5 |
| Anthozoa | 5 |
| Lumbrineris latreilli Audouin & Milne Edwards, 1833 | 5 |
| Orbinia sertulata (Savigny, 1822) | 5 |
| Aricidea Webster, 1879 | 5 |
| Goniadella gracilis (Verrill, 1873) | 5 |
| Lunatia montagui (Forbes, 1838) | 5 |
| Ophiuroidea | 5 |
| Tridonta montagui (Dillwyn, 1817) | 5 |
| Atylus vedlomensis (Spence Bate & Westwood, 1862) | 5 |
| Pseudocuma (Pseudocuma) simile G.O. Sars, 1900 | 5 |
| Diastylis laevis Norman, 1869 | 5 |
| Eudorellopsis deformis (Krøyer, 1846) | 5 |
