Results on main elasmobranch species captured in the bottom trawl surveys on the Northern Spanish Shelf
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Autor/esICES; Fernández-Zapico, O. (Olaya); Velasco, F. (Francisco); Punzón-Merino, A.M. (Antonio María); Serrano, A. (Alberto); Ruiz-Pico, S. (Susana); Rodríguez-Cabello, C. (Cristina); Blanco, M.
This working document presents the results on the significant elasmobranch fish species captured in the Spanish Groundfish Survey on Northern Spanish shelf in 2011. The main species in biomass terms in this survey, in decreasing abundance order, were Scyliorhinus canicula, Galeus melastomus and Raja clavata (altogether made up a 91% out of the total of elasmobranches fish species). With less abundance also Leucoraja naevus, Raja montagui and Etmopterus spinax were recorded (7% out of the total of elasmobranches fish species), followed by other less important in biomass terms (2% out of the total of elasmobranches fish species). Biomass, geographic distribution and length ranges were analysed. Galeus melastomus and Etmopterus spinax dwell deeper areas than Scyliorhinus canicula, Raja clavata, Leucoraja naevus and Raja montagui do.