| Taxon | Density |
| Aricidea catherinae Laubier, 1967 | 257 |
| Exogone (Exogone) verugera (Claparède, 1868) | 182 |
| Levinsenia gracilis (Tauber, 1879) | 169.8 |
| Harpinia antennaria Meinert, 1890 | 158.5 |
| Diastylis lucifera (Krøyer, 1837) | 141.3 |
| Lucinoma borealis (Linnaeus, 1767) | 128.8 |
| Prionospio steenstrupi Malmgren, 1867 | 128.8 |
| Diplocirrus glaucus (Malmgren, 1867) | 120.2 |
| Myriochele Malmgren, 1867 | 120.2 |
| Myrtea spinifera (Montagu, 1803) | 120.2 |
| Nemertea | 109.6 |
| Spiophanes kroyeri Grube, 1860 | 79.4 |
| Pholoe Johnston, 1839 | 70.8 |
| Goniada maculata Örsted, 1843 | 70.8 |
| Thyasira ferruginea (Locard, 1886) | 70.8 |
| Amphictene auricoma (O.F. Müller, 1776) | 60.3 |
| Lumbrineris hibernica McIntosh, 1903 | 60.3 |
| Samytha sexcirrata (M. Sars, 1856) | 50.1 |
| Amphiura filiformis (O.F. Müller, 1776) | 50.1 |
| Clymenura borealis (Arwidsson, 1906) | 50.1 |
| Thyasira Lamarck, 1818 | 50.1 |
| Eudorella emarginata (Krøyer, 1846) | 39.8 |
| Eudorella truncatula (Bate, 1856) | 39.8 |
| Nephtys hombergii Savigny in Lamarck, 1818 | 30.2 |
| Ophelina cylindricaudata (Hansen, 1879) | 30.2 |
| Aricidea cerrutii Laubier, 1966 | 30.2 |
| Laonice sarsi Söderström, 1920 | 30.2 |
| Tharyx Webster & Benedict, 1887 | 30.2 |
| Holothuroidea | 30.2 |
| Kelliella miliaris (R. A. Philippi, 1844) | 30.2 |
| Mya truncata Linnaeus, 1758 | 20 |
| Amphiura chiajei Forbes, 1843 | 20 |
| Nucula nitidosa Winckworth, 1930 | 20 |
| Notomastus latericeus Sars, 1851 | 20 |
| Peresiella clymenoides Harmelin, 1968 | 20 |
| Chaetozone setosa Malmgren, 1867 | 20 |
| Terebellides stroemii Sars, 1835 | 20 |
| Synelmis klatti (Friedrich, 1950) | 20 |
| Exogone (Parexogone) hebes (Webster & Benedict, 1884) | 10 |
| Exogone (Exogone) naidina Örsted, 1845 | 10 |
| Lanice conchilega (Pallas, 1766) | 10 |
| Polycirrus Grube, 1850 | 10 |
| Glycinde nordmanni (Malmgren, 1866) | 10 |
| Amphicteis gunneri (M. Sars, 1835) | 10 |
| Pseudopolydora pulchra (Carazzi, 1893) | 10 |
| Spiophanes bombyx (Claparède, 1870) | 10 |
| Paradoneis lyra (Southern, 1914) | 10 |
| Protodorvillea kefersteini (McIntosh, 1869) | 10 |
| Ophelina norvegica Støp-Bowitz, 1945 | 10 |
| Scoloplos armiger (Müller, 1776) | 10 |
| Urothoe elegans Spence Bate, 1857 | 10 |
| Enteropneusta | 10 |
