Spatial distribution, inter-annual variability and influence of abiotic factors on molluscan assemblages collected with otter trawl in the northen Alborán Sea
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AuthorsCiércoles, C. (Cristina); García-Ruiz, C. (Cristina); González-Aguilar, M. (María); López-González, N. (Nieves); Tuite, P. (Patrick); Ortiz-de-Urbina-Gutiérrez, J.M. (José María); Rueda, J.L. (José Luis)
Molluscs constitute one of the most diverse and best represented invertebrate groups in the marine environment. In the northern sectors of the Alborán Sea and Gulf of Cádiz 1200 spp. of the 1800 spp. occurring in the Mediterranean Sea, have been found so far highlighting the importance of this area for the european molluscan fauna (Gofas et al., 2011). Molluscs are also the second group in abundance and biomass in demersal fisheries and an important component of soft-bottom benthic communities, including ecologically important and/or commercial mollusc species that are also exposed to an increasing trawling impact (Snelgrove, 1998; Kaiser & De Groot, 1999). Previous studies on molluscs of the Alborán Sea has primarily focused on those from infralittoral habitats, with few studies focussing on the composition, structure and dynamics of circalittoral and bathyal molluscan assemblages ( Rueda et al., 2015). The study of soft bottom molluscan assemblages where trawling fishing fleet operates ...
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