The by-catch of sharks in the western Mediterranean (Balearic Islands) trawl fishery
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AuthorsCarbonell, A. (Ana); Alemany, F. (Francisco); Merella, P. (Paolo); Quetglas, A. (Antoni); Román-Marcote, E. (Esther)
The shark species, blackmouth catshark (Galeus melastomus), velvet belly (Etmopterus spinax) and coastal spotted dogfish (Scyliorhinus canicula) are an important by-catch of the Balearic Islands (Western Mediterranean) trawl fishery. The catch compositions of the fishery taking these species is described and analysed in terms of landings and discards. Only two of these species are sufficiently abundant to be recorded in the landings (blackmouth catshark and spotted dogfish). The length compositions in terms of both landings and discards were analysed for these two species. Spotted dogfish catches reached similar proportions to those of the target species in the coastal fishery (red and striped red mullet) and in the shelf trawl fishery (European hake); whereas the catches of blackmouth catshark and velvet belly were a small proportion of the total catch in the slope fishery for red shrimp. The size range of the spotted dogfish was between 7 and 53 cm TL. Juveniles and adults were distr ...