| Taxon | Density |
| Ampelisca spinipes Boeck, 1861 | 154.9 |
| Philomedes globosus (Lilljeborg, 1853) | 128.8 |
| Myriochele Malmgren, 1867 | 81.3 |
| Amphiura filiformis (O.F. Müller, 1776) | 77.6 |
| Leptochiton asellus (Gmelin, 1791) | 60.3 |
| Haploops tubicola Liljeborg, 1856 | 60.3 |
| Levinsenia gracilis (Tauber, 1879) | 25.1 |
| Holothuroidea | 23.4 |
| Photis longicaudata (Spence Bate & Westwood, 1862) | 21.9 |
| Ampelisca aequicornis Bruzelius, 1859 | 18.2 |
| Paraphoxus oculatus (G. O. Sars, 1879) | 18.2 |
| Glycera rouxii Audouin & Milne Edwards, 1833 | 18.2 |
| Goniada maculata Örsted, 1843 | 15.1 |
| Amphictene auricoma (O.F. Müller, 1776) | 15.1 |
| Scoloplos armiger (Müller, 1776) | 15.1 |
| Harpinia antennaria Meinert, 1890 | 15.1 |
| Echinocyamus pusillus (O.F. Müller, 1776) | 13.2 |
| Pholoe Johnston, 1839 | 13.2 |
| Spiophanes bombyx (Claparède, 1870) | 11.7 |
| Ophiura albida Forbes, 1839 | 11.7 |
| Glycera lapidum Quatrefages, 1866 | 11.7 |
| Urothoe elegans Spence Bate, 1857 | 11.7 |
| Chaetoderma nitidulum Lovén, 1844 | 10 |
| Nemertea | 10 |
| Anobothrus gracilis (Malmgren, 1866) | 10 |
| Sabellidae Latreille, 1825 | 8.3 |
| Cheirocratus intermedius G.O. Sars, 1894 | 8.3 |
| Maera othonis (H. Milne Edwards, 1830) | 6.8 |
| Tiron spiniferum (Stimpson, 1853) | 6.8 |
| Ampelisca tenuicornis Liljeborg, 1856 | 6.8 |
| Lucinoma borealis (Linnaeus, 1767) | 6.8 |
| Mysella bidentata (Montagu, 1803) | 6.8 |
| Eudorella truncatula (Bate, 1856) | 6.8 |
| Eunoe nodosa (M. Sars, 1861) | 6.8 |
| Scalibregma inflatum Rathke, 1843 | 6.8 |
| Caulleriella Chamberlin, 1919 | 5 |
| Thelepus cincinnatus (Fabricius, 1780) | 5 |
| Scopelocheirus hopei (A. Costa in Hope, 1851) | 5 |
| Ericthonius difformis H. Milne Edwards, 1830 | 3.3 |
| Antalis entalis (Linnaeus, 1758) | 3.3 |
| Nuculana minuta (O. F. Müller, 1776) | 3.3 |
| Sipuncula | 3.3 |
| Nephtys hombergii Savigny in Lamarck, 1818 | 3.3 |
| Paramphinome jeffreysii (McIntosh, 1868) | 3.3 |
| Exogone (Exogone) naidina Örsted, 1845 | 3.3 |
| Nereis zonata Malmgren, 1867 | 3.3 |
| Hyas coarctatus Leach, 1815 | 3.3 |
| Atelecyclus rotundatus (Olivi, 1792) | 3.3 |
| Chaetozone setosa Malmgren, 1867 | 3.3 |
| Minuspio cirrifera (Wirén, 1883) | 3.3 |
| Polydora (Polydora) flava Claparède, 1870 | 1.7 |
| Harmothoe lunulata (Delle Chiaje, 1830) | 1.7 |
| Dodecaceria concharum Örsted, 1843 | 1.7 |
| Capitellidae Grube, 1862 | 1.7 |
| Notomastus latericeus Sars, 1851 | 1.7 |
| Praxillella praetermissa (Malmgren, 1865) | 1.7 |
| Owenia fusiformis Delle Chiaje, 1844 | 1.7 |
| Sabellides octocirrata (M. Sars, 1835) | 1.7 |
| Trichobranchus glacialis Malmgren, 1866 | 1.7 |
| Eupolymnia nebulosa (Montagu, 1819) | 1.7 |
| Metopa pusilla Sars, 1892 | 1.7 |
| Synchelidium maculatum Stebbing, 1906 | 1.7 |
| Lagis koreni Malmgren, 1866 | 1.7 |
| Anaitides rosea (McIntosh, 1877) | 1.7 |
| Phyllodoce laminosa Lamarck, 1818 (from Savigny Mss) | 1.7 |
| Syllidae Grube, 1850 | 1.7 |
| Sphaerodorum flavum Örsted, 1843 | 1.7 |
| Psammechinus miliaris (P.L.S. Müller, 1771) | 1.7 |
| Curveulima devians (Monterosato, 1884) | 1.7 |
| Lunatia poliana (Della Chiaje, 1826) | 1.7 |
| Phoronis muelleri Selys-Longchamps, 1903 | 1.7 |
| Tridonta montagui (Dillwyn, 1817) | 1.7 |
| Ensis Schumacher, 1817 | 1.7 |
| Puncturella noachina (Linnaeus, 1771) | 1.7 |
| Photis reinhardi Krøyer, 1842 | 1.7 |
