| Taxon | Density |
| Amphiura filiformis (O.F. Müller, 1776) | 912 |
| Mysella bidentata (Montagu, 1803) | 169.8 |
| Amphictene auricoma (O.F. Müller, 1776) | 125.9 |
| Eudorella emarginata (Krøyer, 1846) | 83.2 |
| Nuculoma tenuis (Montagu, 1808) | 72.4 |
| Brada villosa (Rathke, 1843) | 42.7 |
| Polyphysia crassa (Örsted, 1843) | 41.7 |
| Arctica islandica (Linnaeus, 1767) | 36.3 |
| Nephtys hombergii Savigny in Lamarck, 1818 | 32.4 |
| Diastylis lucifera (Krøyer, 1837) | 30.2 |
| Holothuroidea | 28.8 |
| Pholoe Johnston, 1839 | 26.9 |
| Chamelea gallina (Linnaeus, 1758) | 22.9 |
| Saxicavella jeffreysi Winckworth, 1930 | 22.9 |
| Nemertea | 20.9 |
| Tellimya ferruginosa (Montagu, 1808) | 18.2 |
| Eriopisa elongata (Bruzelius, 1859) | 18.2 |
| Echiurus echiurus (Pallas, 1766) | 14.1 |
| Chaetopterus variopedatus (Renier, 1804) | 14.1 |
| Sipuncula | 14.1 |
| Scalibregma inflatum Rathke, 1843 | 12 |
| Diastylis bradyi Norman, 1879 | 12 |
| Gattyana cirrhosa (Pallas, 1766) | 8.9 |
| Harmothoe (Harmothoe) glabra (Malmgren, 1866) | 8.9 |
| Diplocirrus glaucus (Malmgren, 1867) | 8.9 |
| Chaetozone setosa Malmgren, 1867 | 7.1 |
| Chaetoderma nitidulum Lovén, 1844 | 7.1 |
| Ophiura albida Forbes, 1839 | 7.1 |
| Corbula gibba (Olivi, 1792) | 7.1 |
| Lunatia poliana (Della Chiaje, 1826) | 5 |
| Cylichna cylindracea (Pennant, 1777) | 5 |
| Brissopsis lyrifera (Forbes, 1841) | 5 |
| Nucula nitidosa Winckworth, 1930 | 5 |
| Diastylis rathkei (Krøyer, 1841) | 5 |
| Ampelisca brevicornis (A. Costa, 1853) | 5 |
| Eudorella truncatula (Bate, 1856) | 5 |
| Nephtys incisa Malmgren, 1865 | 5 |
| Priapulus caudatus Lamarck, 1816 | 5 |
| Lumbrineris hibernica McIntosh, 1903 | 5 |
| Lumbrineris latreilli Audouin & Milne Edwards, 1833 | 5 |
| Scoloplos armiger (Müller, 1776) | 5 |
| Ophelina acuminata Örsted, 1843 | 5 |
| Glycera alba (O.F. Müller, 1776) | 5 |
| Glycinde nordmanni (Malmgren, 1866) | 5 |
| Goniada maculata Örsted, 1843 | 5 |
| Ophiodromus flexuosus (Delle Chiaje, 1827) | 5 |
| Synelmis klatti (Friedrich, 1950) | 5 |
| Ampelisca tenuicornis Liljeborg, 1856 | 3 |
| Cheirocratus intermedius G.O. Sars, 1894 | 3 |
| Myriochele Malmgren, 1867 | 1 |
