Appendix 1. List of the functional taxa captured in the surf zone hyperbenthos, with indication of their density (N/100m²) during the different sampling campaigns and at the different sampling locations. Abbreviations of sampling sites are explained in Fig. 1

Species / Summer 1995 / Winter 1996 / Summer 2009 / Winter 2010 / DP / NP / MI / MA / OO / DH / BL / ZB / KN / CA
Cnidaria / Bougainvillia muscus (Allman, 1863) / 79.9 / 0.8 / 86.3 / 47.0 / 20.0 / 12.7 / 25.0 / 3.3 / 7.0 / 0.3
Chrysaora hysoscella (Linnaeus, 1767) / 0.1 / 0.3
Clytia hemisphaerica (Linnaeus, 1767) / 22.3 / 11.7 / 48.8 / 1.1 / 4.3 / 6.7 / 5.7 / 4.0 / 7.3 / 25.3 / 54.7 / 15.0 / 37.0 / 49.7
Ctenophora / Pleurobrachia pileus (Müller, 1776) / 16.7 / 4.0 / 1.3 / 0.1 / 41.0 / 1.0 / 1.7 / 1.0 / 8.0 / 1.3 / 0.7 / 0.7
Polychaeta / Lanice conchilega Pallas, 1766 (aulophora) / 4.5 / 159.6 / 48.8 / 33.7 / 140.3 / 26.0 / 107.7 / 18.0 / 82.0 / 22.7 / 44.0 / 57.7 / 0.3
Cladocera / Cladocera species / 0.5 / 0.3 / 1.0
Copepoda / Acartia species / 2.9 / 7.3
Calanus species / 2.5 / 2.1 / 2.0 / 0.4 / 1.3 / 1.7 / 2.7 / 1.3 / 0.7 / 1.0 / 3.0 / 4.0 / 2.0
Caligus species / 0.1 / 0.1 / 0.3 / 0.3
Centropages species / 3.7 / 17.5 / 0.3 / 12.8 / 46.7 / 10.3 / 15.0 / 2.7 / 2.3 / 4.0 / 0.3 / 3.0 / 1.3
Corycaeus species / 0.1 / 0.1 / 0.5 / 0.3 / 0.3 / 1.3
Eurytemora species / 0.1 / 0.3
Labidocera wollastoni (Lubbock, 1857) / 0.3 / 0.1 / 0.7 / 0.3
Lernaeocera species / 0.1 / 0.3
Poecilostomatoida species / 0.1 / 0.1 / 0.3 / 0.3
Siphonostomatoida species / 0.1 / 0.3
Temora longicornis (Müller O.F., 1785) / 0.1 / 44.8 / 0.4 / 20.5 / 7.0 / 4.0 / 13.0 / 14.0 / 4.0 / 43.0 / 11.7 / 28.3 / 10.3 / 29.3
Euphausiacea / Nyctiphanes couchii (Bell, 1853) / 0.1 / 0.3
Decapoda / Cancer pagurus Linnaeus, 1758(zoea) / 0.1 / 0.3
Carcinus maenas (Linnaeus, 1758)(adult) / 0.5 / 0.7 / 0.3 / 0.3 / 0.3 / 0.3 / 0.7 / 0.3 / 0.7
Carcinus maenas (Linnaeus, 1758) (megalopa) / 29.1 / 11.6 / 69.7 / 1.7 / 1.3 / 1.0 / 4.3 / 8.0 / 1.0 / 10.3 / 0.3 / 4.0
Carcinus maenas (Linnaeus, 1758)(zoea) / 1.5 / 1.3 / 0.3 / 0.3 / 5.0 / 1.0 / 0.3
Crangon crangon (Linnaeus, 1758)(adult) / 8.5 / 12.1 / 30.7 / 9.1 / 13.3 / 51.3 / 0.3 / 1.0 / 22.3 / 10.0 / 5.7 / 9.7 / 5.7 / 31.7
Crangon crangon (Linnaeus, 1758)(post) / 16.3 / 2.1 / 31.9 / 8.3 / 1.3 / 11.3 / 11.7 / 14.7 / 39.3 / 3.3 / 22.0 / 1.3 / 12.3
Crangon crangon (Linnaeus, 1758)(zoea) / 1.9 / 0.1 / 1.0 / 1.7 / 1.0 / 1.0 / 0.3
Diogenes pugilator (Roux, 1829) (adult) / 0.1 / 0.4 / 0.3 / 0.3 / 0.3 / 0.3
Palaemon elegans Rathke, 1837 (post) / 1.1 / 0.7 / 1.7 / 0.3
Pilumnus hirtellus (Linnaeus, 1761)(adult) / 0.4 / 0.7 / 0.3
Pinnotheres pisum (Linnaeus, 1767)(adult) / 0.1 / 0.3
Pisidia longicornis (Linnaeus, 1767) (megalopa) / 0.1 / 0.3
Porcellana platycheles (Pennant, 1777) (adult) / 0.1 / 0.3
Porcellana platycheles (Pennant, 1777) (megalopa) / 0.1 / 0.3
Porcellana platycheles (Pennant, 1777) (zoea) / 0.4 / 0.7 / 0.3
Portumnus latipes (Pennant, 1777) (adult) / 0.7 / 0.3 / 0.3 / 1.0
Portumnus latipes (Pennant, 1777) (megalopa) / 10.4 / 11.3 / 28.0 / 0.3 / 0.7 / 1.3 / 1.3 / 6.3 / 1.7 / 12.3 / 1.7 / 0.7
Mysida / Gastrosaccus spinifer (Goës, 1864) / 1.7 / 5.7 / 1.0 / 0.7 / 1.3 / 3.7 / 3.0 / 3.3 / 5.7
Leptomysis gracilis (G.O. Sars, 1864) / 0.1 / 0.1 / 0.3 / 0.3
Mesopodopsis slabberi (van Beneden, 1861) / 240.4 / 2.1 / 6017.7 / 2.0 / 4267.0 / 269.7 / 3237.0 / 296.0 / 180.7 / 1140.0 / 48.3 / 1128.7 / 1114.0 / 3974.3
Neomysis integer (Leach, 1814) / 0.1 / 3.6 / 13.5 / 0.7 / 1.3 / 0.3 / 0.7 / 3.7 / 3.0 / 33.3
Praunus flexuosus (Müller, 1776) / 0.1 / 2.3 / 0.1 / 4.0 / 0.7 / 0.7 / 0.7 / 0.3
Schistomysis kervillei (G.O. Sars, 1885) / 723.3 / 34.9 / 28.8 / 1063.0 / 152.7 / 1.3 / 3.3 / 30.0 / 602.7 / 24.7 / 84.7 / 0.3 / 5.0
Schistomysis spiritus (Norman, 1860) / 268.4 / 1.9 / 659.3 / 0.3 / 11.7 / 4.0 / 0.3
Cumacea / Bodotria scorpioides (Montagu, 1804) / 0.1 / 0.3
Cumopsis goodsir (Van Beneden, 1861) / 1.9 / 3.7 / 58.1 / 6.0 / 33.3 / 7.3 / 31.7 / 51.7 / 42.3 / 0.3 / 2.3 / 4.3 / 1.0
Diastylis rathkei (Krøyer, 1841) / 0.1 / 0.1 / 0.1 / 0.3 / 0.3 / 0.3
Diastylis rugosa Sars, 1865 / 0.1 / 0.3 / 0.3 / 0.7
Pseudocuma (Pseudocuma) longicorne (Bate, 1858) / 0.3 / 0.4 / 0.1 / 0.7 / 0.7 / 0.3 / 0.3
Species / Summer 1995 / Winter 1996 / Summer 2009 / Winter 2010 / DP / NP / MI / MA / OO / DH / BL / ZB / KN / CA
Amphipoda / Abludomelita obtusata (Montagu, 1813) / 1.1 / 0.3 / 0.7 / 2.0 / 0.7
Amphilochus neapolitanus Della Valle, 1893 / 0.3 / 0.7
Atylus swammerdami (Milne-Edwards, 1830) / 6.5 / 0.3 / 12.1 / 0.5 / 15.7 / 0.3 / 1.3 / 1.3 / 3.3 / 12.0 / 0.7 / 9.7 / 1.0 / 3.3
Bathyporeia species / 0.4 / 1.5 / 1.1 / 1.9 / 0.7 / 0.3 / 0.3 / 0.3 / 1.0 / 8.0 / 0.7 / 0.3 / 0.3
Corophium acherusicum Costa, 1851 / 4.7 / 0.1 / 0.7 / 1.7 / 8.0 / 1.0 / 1.7 / 0.3 / 1.0
Corophium insidiosum Crawford, 1937 / 6.3 / 1.2 / 0.3 / 3.7 / 9.0 / 1.0 / 0.7 / 1.0 / 2.0 / 1.0 / 1.0
Corophium volutator (Pallas, 1766) / 1.1 / 0.1 / 0.5 / 0.1 / 0.3 / 2.7 / 0.3 / 0.3 / 1.0
Gammarus crinicornis Stock, 1966 / 79.3 / 8.5 / 45.6 / 2.3 / 99.3 / 5.3 / 7.3 / 4.3 / 7.0 / 102.3 / 1.0 / 109.3 / 0.3 / 3.0
Gammarus locusta (Linnaeus, 1758) / 0.1 / 0.5 / 0.3 / 1.3
Hyale prevosti (Milne-Edwards 1830) / 0.3 / 0.7
Jassa falcata (Montagu, 1808) / 0.9 / 0.7 / 0.3 / 0.7 / 1.0 / 0.3 / 1.7
Jassa marmorata (Holmes, 1903) / 3.9 / 2.3 / 3.7 / 1.7 / 0.3 / 0.3 / 1.0 / 0.3
Melita palmata (Montagu, 1804) / 0.1 / 1.1 / 1.6 / 0.7 / 0.3 / 0.3 / 1.0 / 0.3 / 1.3 / 3.0
Microprotopus maculatus Norman, 1867 / 62.5 / 2.0 / 4.0 / 12.3 / 1.7 / 1.7 / 0.7 / 12.7 / 0.7 / 126.7 / 1.0
Pariambus typicus (Krøyer, 1884) / 1.2 / 0.3 / 3.3 / 0.3
Phtisica marina Slabber, 1769 / 0.1 / 0.3
Pontocrates altamarinus (Bate & Westwood, 1862) / 0.7 / 0.5 / 0.4 / 1.7 / 1.7 / 0.3 / 0.3
Pontocrates arenarius (Bate, 1858) / 0.3 / 1.2 / 0.7 / 0.3 / 2.0 / 0.7 / 0.3 / 2.0 / 1.0
Pseudoprotella phasma Montagu, 1804 / 0.1 / 0.3
Tryphosella sarsi Bonnier, 1893 / 0.3 / 0.3 / 0.3
Urothoe poseidonis Reibish, 1905 / 0.5 / 1.0 / 0.3
Isopoda / Asselota species / 0.1 / 0.3
Bopyridae species (microniscus) / 0.5 / 0.3 / 0.7 / 0.3
Eurydice pulchra Leach, 1815 / 2.9 / 0.9 / 0.5 / 4.0 / 0.3 / 0.7 / 0.7 / 0.7 / 4.7
Idotea balthica (Pallas, 1772) / 0.9 / 17.2 / 26.3 / 2.3 / 2.0 / 3.0 / 9.0 / 1.7 / 0.3 / 0.3 / 0.3
Idotea linearis (Linnaeus, 1766) / 2.3 / 9.3 / 0.1 / 17.7 / 2.0 / 1.0 / 2.7 / 2.7 / 3.0 / 0.3
Idotea pelagica Leach, 1815 / 0.3 / 0.3 / 0.3
Jaera (Jaera) albifrons Leach, 1814 / 0.1 / 0.3
Pycnogonida / Ammothella longipes (Hodge, 1864) / 0.1 / 0.3
Anoplodactylus petiolatus (Kroyer, 1844) / 0.3 / 0.3 / 0.3
Nymphon brevirostre Hodge, 1863 / 0.1 / 0.3
Pycnogonum litorale (Strom, 1762) / 0.1 / 0.3
Echinodermata / Ophiuroidea species / 26.1 / 0.3 / 0.5 / 4.3 / 46.7 / 0.3 / 6.0 / 0.7 / 0.3 / 1.3 / 1.0 / 6.7
Chaetognatha / Parasagitta setosa (Müller, 1847) / 1.6 / 48.1 / 24.1 / 3.3 / 36.7 / 5.0 / 24.7 / 32.7 / 6.7 / 17.0 / 9.3 / 4.3 / 35.3 / 21.3
Pisces / Ammodytes tobianus Linnaeus, 1758 / 0.4 / 1.0
Chelon labrosus (Risso, 1827) / 0.3 / 0.1 / 0.3 / 0.7
Clupea harengus Linnaeus, 1758 / 0.1 / 0.3
Dicentrarchus labrax (Linnaeus, 1758) / 0.1 / 0.3
Pleuronectes platessa Linnaeus, 1758 / 0.3 / 0.9 / 0.1 / 0.1 / 0.3 / 0.3 / 2.0 / 0.3 / 0.7
Pomatoschistus microps (Krøyer, 1838) / 7.1 / 1.1 / 0.3 / 6.0 / 3.7 / 1.3 / 0.7 / 0.3 / 3.0 / 1.7 / 3.7 / 0.7
Solea solea (Linnaeus, 1758) / 0.3 / 0.3 / 0.3
Syngnathus rostellatus Nilsson, 1855 / 0.5 / 1.2 / 1.3 / 1.3 / 0.3 / 0.3 / 1.0