English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/25133
Share/Impact:
Statistics
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Modelling artisanal coastal fisheries of Galicia (NW Spain) based on data obtained from fishers: the case of Octopus vulgaris

AuthorsOtero, Jaime ; Rocha, Francisco; González, Ángel F. ; Gracia, Joaquín; Guerra, Ángel
KeywordsOctopus vulgaris
Small-scale fisheries
Gómez-Muñoz model
Catch estimations
NW Spain
Octopus vulgaris
Pesqueria artesanal
Modelo de Gómez-Muñoz
Estimación de capturas
NO de España
Issue Date2005
PublisherCSIC - Instituto de Ciencias del Mar (ICM)
CitationScientia Marina 69 (4) 577-585 (2005)
Abstract[EN] The small-scale common octopus (Octopus vulgaris) fishery in Galician waters (NW Spain) was studied using a model based on information obtained from fishers. The Gómez-Muñoz model was applied using information obtained from the artisanal Galician fleet from 1998 to 2000. This information was used to estimate catches per unit of effort (CPUE) and total catch for the whole directed creel fishery. A total of 73 interviews were conducted in 22 ports in the west part of ICES division VIIIc and 75 interviews in 16 ports in the north part of ICES division IXa. The estimated total catch during the fishing season for the whole Galician fleet was 5214 t (2528 t in VIIIc and 2686 t in IXa), and the average CPUE for the VIIIc and IXa fishing grounds obtained from the model was 44.11 and 23.83 kg haul-1 respectively. To test the reliability of the model, the outputs obtained for a subset of 35 ports (19 in VIIIc and 16 in IXa), were compared with the official statistics of these ports. The average official catch from 1997 to 2000 and estimated total catch data were significantly correlated.
[ES] La pesquería artesanal de pulpo común (Octopus vulgaris) en aguas de Galicia (NO España) se estudió usando un modelo basado en información obtenida de los pescadores. Para estimar capturas por unidad de esfuerzo (CPUE) y capturas totales en la pesquería dirigida al pulpo común se aplicó el modelo de Gómez-Muñoz, utilizando información de la flota artesanal gallega desde 1998 a 2000. Se hicieron un total de 73 entrevistas en 22 puertos pertenecientes a la división VIIIc oeste de ICES y 75 entrevistas en 16 puertos de la división IXa norte. Las capturas totales estimadas para toda la flota gallega durante la temporada de pesca fueron de 5214 t (2528 t en VIIIc y 2686 ten IXa), y las CPUE medias para los caladeros VIIIc y IXa obtenidas por el modelo fueron de 44.11 y 23.83 kg lance-1, respectivamente. Para evaluar la fiabilidad del modelo se compararon los resultados estimados en 35 puertos (19 en VIIIc y 16 en IXa) con datos oficiales disponibles. La captura media oficial entre 1997 y 2000, y las capturas totales estimadas estaban significativamente correlacionadas
Description10 pages, 4 figures, 3 tables.
Publisher version (URL)http://www.icm.csic.es/scimar/index.php/secId/6/IdArt/3204/
URIhttp://hdl.handle.net/10261/25133
ISSN0214-8358
Appears in Collections:(IIM) Artículos
Files in This Item:
File Description SizeFormat 
sm69n4577-3.pdf244,08 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.