Modeling discards in Trawling Mediterranean Northern Alboran Sea Fishery
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AuthorsCarbonell, A. (Ana); Paradinas, I. (Iosu); Mallol, S. (Sandra); García-Jiménez, M.T. (María Teresa); González-Aguilar, M. (María); Álvarez-Berastegui, D. (Diego); Bultó-Estébanez, C. (Cristina); Bellido-Millán, J.M. (José María)
Target and Bycatch species metrics estimated from fishery-dependent data were explored to assess their use in governance of habitat conservation in respect to fisheries. Fishing data collected by onboard observers in otter-trawl boats between 2011 and 2012 at monthly sampling frequency in the Alboran Sea (Western Mediterranean) were used to build maps of sensitivity to fishing stress. Maps were drawn by means kriging interpolation techniques of biomass and abundance (Catch Per Unit of Effort, CPUE) in kilogram and number per fishing hour of blue whiting (Micromesistius poutassou), European hake (Merluccius merluccius), and red mullets (Mullus barbatus and Mullus surmuletus) target species, seabreams (Pagellus acarne, Pagellus bogaraveo, and Pagellus erythrinus), and mackerels (Trachurus mediterraneus, Trachurus trachurus, and Trachurus picturatus) bycatch species and Bogue (Boops boops) bycatch discarded species. Modelling discards by means Generalised Additive Models (GAMs) use enviro ...
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