Assessing the influence of gilthead sea bream escapees in landings of Mediterranean fisheries through a scale-based methodology
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Título: | Assessing the influence of gilthead sea bream escapees in landings of Mediterranean fisheries through a scale-based methodology |
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Autor/es: | Izquierdo-Gomez, David | Arechavala-Lopez, Pablo | Bayle-Sempere, Just T. | Sanchez-Jerez, Pablo |
Grupo/s de investigación o GITE: | Biología Marina |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada |
Palabras clave: | Artisanal | Aquaculture | Cages | Fish farming | Recapture | Small-scale |
Área/s de conocimiento: | Zoología |
Fecha de publicación: | feb-2017 |
Editor: | John Wiley & Sons |
Cita bibliográfica: | Fisheries Management and Ecology. 2017, 24(1): 62-72. doi:10.1111/fme.12202 |
Resumen: | Gilthead sea bream (Sparus aurata L.) aquaculture has rapidly spread around the Mediterranean Sea. Fish escapes from sea cages are one of the major problems for the industry and also represent a threat to the marine environment. Fishery catches are also influenced by escape events, being mirrored in increased landings of cultured species. However, within the Mediterranean, studies shedding light on the incidence of escaped individuals in fisheries landings are scarce. Firstly, the present study describes a simple scale-examination methodology to distinguish escaped from wild S. aurata landed by coastal fisheries. Secondarily, the incidence of escapees is assessed within landings of the species in the western Mediterranean. The scale readings revealed a monthly incidence of escapees between 11.2 and 20.8%, representing 6.8% of the total income derived from these landings. Moreover, morphological differences between wild fish captured near and far from fish farms point towards escape events as a source of potential genetic admixture between cultured and wild genotypes. Socio-economic and ecological implications of escapees are discussed, and a set of management guidelines proposed, to prevent and/or mitigate the negative influences of escaped fish on the ecosystem and traditional users of the coast such as fisheries. |
Patrocinador/es: | This research is part of the project FATFISH (CTM2009-14362-C02-01), financed by the Ministry of Science and Innovation of Spain. |
URI: | http://hdl.handle.net/10045/66472 |
ISSN: | 0969-997X (Print) | 1365-2400 (Online) |
DOI: | 10.1111/fme.12202 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2017 John Wiley & Sons Ltd |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1111/fme.12202 |
Aparece en las colecciones: | INV - BM - Artículos Científicos / Scientific Papers |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2017_Izquierdo_etal_FishManagEcol_final.pdf | Versión final (acceso restringido) | 513,9 kB | Adobe PDF | Abrir Solicitar una copia |
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