
handle: 10261/90582
[ES] Entre 1970 y 1975 se han realizado diversas experiencias encaminadas a conocer la selectividad de diferentes especies con artes de arrastre del tipo "baca" en la pesquería demersal de Galicia (NW de España). El método utilizado fue el del copo cubierto y las pescas se realizaron entre 44 y 405 metros de profundidad. Se presentan los resultados para la bacaladilla, cigala. gallo y faneca obtenidos con copos de polietileno, polipropileno y poliamida de diferentes aberturas de malla. Los factores de selección obtenidos han sido los siguientes: Bacaladilla, polietileno . . . . . . 3 ,90 Bacaladilla, polipropileno . . . . . . 4 ,40 Cigala, polietileno . . . . . . . 1,63 Cigala, poliamida . . . . . . . . 1 ,68 Faneca, polietileno . . . . . . . 2 ,45 Faneca, polipropileno . . . . . . . 2 ,48 Gallo, polietileno . . . . . . . . 2 ,31 Se analizan los efectos que podría producir una regulación de mallas para estas especies en la pesquería de arrastre de Galicia, llegándose a la conclusión de que una abertura de mallas de 60 mm sería beneficioso para el conjunto de la pesquería
[EN] From 1970 to 1975 several experiences were carried out in order to know the selectivity of different species with bottom trawl gears of the type called "baca", in the demersal fishery off Galicia (NW of Spain). A covered cod-end was used in al1 the trawls and they were carried out in depths ranging from 44 to 405 meters. The selection factors for blue-whiting, Norway lobster, megrim and bib with cod-ends of polyethylene. polypropylene and polyamide of different mesh-sizes were: Blue-whiting, polyethylene . . . . . 3,90 Blue-whiting, polypropylene . . . . . 4 ,40 Norway lobster, polyethylene . . . . . 1,63 Norway lobster, polyamide . 1,68 Bib, polyethylene . . . 2,45 Bib, polypropylene . . . 2,48 Megrim, polyethylene . . . . . . . 2 ,31 The possible effects that a mesh-size regulation for this species could produce is analized, reaching the conclusion that a mesh-size of 60 mm should be benefitial for the whole demersal fishery of Galicia. [...] Micromesistius poutassou, Trisopterus luscus, Nephrops norvegicus, Lepidorhombus boscii
16 páginas, 3 cuadros, 8 figuras
Peer reviewed
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