Contrasting molluscan fauna collected with beam trawl and otter trawl in circalittoral and bathyal soft bottoms of the northern Alboran Sea
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AuthorsMoya-Urbano, E. (Elena); Ciércoles, C. (Cristina); González-Aguilar, M. (María); Gallardo-Núñez, M. (Marina); Ordines, F. (Francesc); Mateo-Ramírez, A. (Angel); Farias, C. (Carlos); Urra, J. (Javier); Gofas, S. (Sergio); Rueda, J.L. (José Luis); García-Ruiz, C. (Cristina)
The Alboran Sea display complex oceanographic, geological, ecological and biological processes, promoting a high biodiversity and complexity (Robles, 2010). On the other hand, molluscs constitute one of the most diverse and best represented invertebrate groups in this area, representing an important component of soft bottom communities, as well as the second group in abundance and biomass in demersal fisheries, with species of ecological and commercial importance worldwide (Gofas et all., 2011). The study of the molluscan assemblages is important where trawling fishing fleets operate, in order to improve fisheries assessment and move forward to an ecosystem based approach, which takes into account other components of the fishery than the target species such as non-target and protected species and habitats (Pikitch et al., 2004). Information collected on fisheries assemblages may introduce a bias depending on the fraction of the assemblage (e.g. demersal, epifaunal, infaunal) at which the ...
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