| Taxon | Density |
| Leptocheirus hirsutimanus (Spence Bate & Westwood, 1862) | 446.7 |
| Prionospio malmgreni Claparède, 1868 | 363.1 |
| Sipuncula | 346.7 |
| Glycera lapidum Quatrefages, 1866 | 331.1 |
| Sabellidae Latreille, 1825 | 281.8 |
| Guernea (Guernea) coalita (Norman, 1868) | 257 |
| Ophiuroidea | 190.5 |
| Ascidiacea | 158.5 |
| Exogone (Parexogone) hebes (Webster & Benedict, 1884) | 141.3 |
| Spio filicornis (Müller, 1776) | 141.3 |
| Sphaerosyllis bulbosa Southern, 1914 | 100 |
| Hesionura elongata (Southern, 1914) | 100 |
| Urothoe elegans Spence Bate, 1857 | 89.1 |
| Eulalia mustela Pleijel, 1987 | 89.1 |
| Ampelisca spinipes Boeck, 1861 | 70.8 |
| Pholoe Johnston, 1839 | 70.8 |
| Eteone longa (Fabricius, 1780) | 70.8 |
| Ophiodromus flexuosus (Delle Chiaje, 1827) | 60.3 |
| Leptochiton asellus (Gmelin, 1791) | 60.3 |
| Nemertea | 60.3 |
| Polycirrus Grube, 1850 | 50.1 |
| Serpulidae Rafinesque, 1815 | 50.1 |
| Spiophanes bombyx (Claparède, 1870) | 39.8 |
| Phoronis Wright, 1856 | 39.8 |
| Ophelia borealis Quatrefages, 1866 | 30.2 |
| Prionospio steenstrupi Malmgren, 1867 | 30.2 |
| Laonice sarsi Söderström, 1920 | 30.2 |
| Anthozoa | 30.2 |
| Paradoneis lyra (Southern, 1914) | 30.2 |
| Notomastus latericeus Sars, 1851 | 30.2 |
| Aphrodita aculeata Linnaeus, 1758 | 20 |
| Eumida sanguinea (Örsted, 1843) | 20 |
| Glycinde nordmanni (Malmgren, 1866) | 20 |
| Goniada maculata Örsted, 1843 | 20 |
| Aonides paucibranchiata Southern, 1914 | 20 |
| Orbinia sertulata (Savigny, 1822) | 20 |
| Spiophanes kroyeri Grube, 1860 | 20 |
| Echinocardium flavescens (O.F. Müller, 1776) | 20 |
| Atylus vedlomensis (Spence Bate & Westwood, 1862) | 20 |
| Eurydice pulchra Leach, 1816 | 20 |
| Amphilochus manudens Spence Bate & Westwood, 1862 | 10 |
| Peltocoxa damnoniensis (Stebbing, 1885) | 10 |
| Metopa propinqua G.O. Sars, 1892 | 10 |
| Lepidepecreum longicorne (Spence Bate & Westwood, 1861) | 10 |
| Scopelocheirus hopei (A. Costa in Hope, 1851) | 10 |
| Dulichia Krøyer, 1845 | 10 |
| Lunatia poliana (Della Chiaje, 1826) | 10 |
| Colus gracilis (da Costa, 1778) | 10 |
| Antalis entalis (Linnaeus, 1758) | 10 |
| Spisula elliptica (T. Brown, 1827) | 10 |
| Echinus esculentus Linnaeus, 1758 | 10 |
| Echinocyamus pusillus (O.F. Müller, 1776) | 10 |
| Capitellidae Grube, 1862 | 10 |
| Owenia fusiformis Delle Chiaje, 1844 | 10 |
| Pisione remota (Southern, 1914) | 10 |
| Lumbrineris latreilli Audouin & Milne Edwards, 1833 | 10 |
| Chrysopetalum Ehlers, 1864 | 10 |
| 10 |
| Trypanosyllis coeliaca Claparède, 1868 | 10 |
| Typosyllis Langerhans, 1879 | 10 |
| Streptosyllis websteri Southern, 1914 | 10 |
| Pista cristata (Müller, 1776) | 10 |
