Mesedez, erabili identifikatzaile hau item hau aipatzeko edo estekatzeko: http://dspace.azti.es/handle/24689/589
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Titulua: Targeting bigger schools can reduce ecosystem impacts of fisheries
Egilea: Dagorn, Laurent; Filmalter, John D.; Forget, Fabien; Amande, Monin Justin; Hall, Martin A.; Williams, Peter; Murua, Hilario; Chavance, Pierre; Bez, Nicolas; Ariz, Javier
Zitazioa: CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES, 2012, 69, 1463-1467
Laburpena: Sustainability of living resource exploitation relies on an ecosystem management approach. Within tropical tuna purse seine fisheries using fish aggregating devices (FADs), such an approach incorporates the reduction of bycatch, in particular vulnerable species such as elasmobranchs. The levels of total bycatch (in mass) from fishing operations using FADs is known to be five times higher than when tuna are caught in free-swimming schools. We intend to find practical solutions to reduce bycatch in FAD sets through the investigation of the relationships between the ratio of bycatch to target catch across different set size classes in all oceans. Ratios were always highest when catches were small, with the smallest class of catches responsible for the highest total portion of bycatch (23\%-43\%) while only contributing negligibly to the total target catch (3\%-10\%). Reducing the number of fishing sets (a part of the total effort) while maintaining the same total yield could contribute to a substantial reduction in the impacts of human activities.
Gako-hitzak: BY-CATCH; BYCATCH; OCEAN
Gordailuaren-data: 2012
Argitalpen: CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
Dokumentu mota: Article
Hizkuntza: Ingelesa
DOI: 10.1139/F2012-089
URI: http://dspace.azti.es/handle/24689/589
ISSN: 0706-652X
Babeslea: commission of the European communities [210496]
EU [1543/2000, 199/2008]
SPC through national observer programs (USA purse seine multilateral treaty and the FSM Arrangement)
Bildumetan azaltzen da:Artículos científicos



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