Descarte e impacto asociado a la pesquería de la coquina (Donax trunculus, 1758) en el mar de Alborán: composición, estructura y variación espaciotemporal
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AuthorsLeón, Estefanía; Urra, J. (Javier); Gallardo-Roldan, Helena; Lozano-Fernández, M. (Matías); Baro, J. (Jorge); Rueda, J.L. (José Luis); García-Jiménez, M.T. (María Teresa)
Editor/sDíaz-del-Río-Español, V. (Víctor); Bárcenas, Patrícia; Fernández-Salas, L.M. (Luis Miguel); López-González, N. (Nieves); Palomino, D. (Desirée); Rueda, J.L. (José Luis); Sánchez-Guillamón, O. (Olga); Vázquez, J.T. (Juan Tomás)
The present study describes the composition, structure and damage caused by mechanized dredges on discarded species from the wedge clam (Donax trunculus Linnaeus 1758) fisheries in the Alboran Sea. Discard samples were collected on board artisanal fishing vessels in 95 commercial hauls performed in Fuengirola and Caleta de Vélez between March 2013 and March 2014. The collected fauna was characterized according to their abundance and biomass, and considering their damage type by using a three-level scale (no damage, intermediate damage and severe damage) defined for the different faunal groups identified. Data was analysed for contrasting variations in the different areas and seasons. A total of 87 species were identified, including Paguridae and Annelida. Molluscs were the best represented faunal group, followed by decapod crustaceans and echinoderms. Other groups did not usually exceed 1% of the total abundance and biomass such as fishes or sipunculids. Most discarded individuals ...
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