| Taxon | Density |
| Sabellidae Latreille, 1825 | 141.3 |
| Goniada norvegica Örsted, 1845 | 89.1 |
| Owenia fusiformis Delle Chiaje, 1844 | 79.4 |
| Aonides paucibranchiata Southern, 1914 | 70.8 |
| Pisione remota (Southern, 1914) | 60.3 |
| Glycera lapidum Quatrefages, 1866 | 60.3 |
| Hesionura elongata (Southern, 1914) | 39.8 |
| Sipuncula | 39.8 |
| Notomastus latericeus Sars, 1851 | 30.2 |
| Scolelepis (Scolelepis) cantabra (Rioja, 1918) | 30.2 |
| Macrochaeta clavicornis (M. Sars, 1835) | 20 |
| Parathelepus collaris (Southern, 1914) | 20 |
| Laonice sarsi Söderström, 1920 | 20 |
| Protodorvillea kefersteini (McIntosh, 1869) | 20 |
| Nephtys hystricis McIntosh, 1900 | 20 |
| Bodotria arenosa Goodsir, 1843 | 20 |
| Anonyx lilljeborgi Boeck, 1871 | 10 |
| Ampelisca brevicornis (A. Costa, 1853) | 10 |
| Cheirocratus sundevallii (Rathke, 1843) | 10 |
| Antalis entalis (Linnaeus, 1758) | 10 |
| Palliolum furtivum (Lovén, 1846) | 10 |
| Moerella pygmaea (Lovén, 1846) | 10 |
| Thracia phaseolina (Lamarck, 1818) | 10 |
| Molgula Forbes, 1848 | 10 |
| Eclysippe vanelli (Fauvel, 1936) | 10 |
| Anthozoa | 10 |
| Polydora (Polydora) socialis (Schmarda, 1861) | 10 |
| Protomystides bidentata (Langerhans, 1880) | 10 |
| Anaitides maculata (Linnaeus, 1767) | 10 |
| Exogone (Exogone) verugera (Claparède, 1868) | 10 |
