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Mediterranean and Atlantic deep-sea fish assemblages: differences in biomass composition and size-related structure

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dc.creator Massutí, Enric
dc.creator Gordon, John D. M.
dc.creator Moranta, Joan
dc.creator Swan, Sarah C.
dc.creator Stefanescu, Constantino
dc.date 2008-07-07T07:16:06Z
dc.date 2008-07-07T07:16:06Z
dc.date 2004
dc.date.accessioned 2017-01-31T02:40:50Z
dc.date.available 2017-01-31T02:40:50Z
dc.identifier Sci. Mar. 68(Suppl.3): 101-115
dc.identifier 0214 - 8358 (print edition)
dc.identifier 1886 - 8134 (online edition)
dc.identifier http://hdl.handle.net/10261/5599
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/5599
dc.description Publicación online disponible en: http://www.icm.csic.es/scimar/index.php
dc.description [EN] Data obtained over a period of twenty years from 214 bottom trawls, towed on a single warp at depths between 402 and 1993 m in the western Mediterranean (Algerian and Balearic basins) and eastern North Atlantic (Rockall Trough and Porcupine Seabight), allowed a standardised comparison of density, biomass composition and size-related structure for both the whole fish fauna and for the most common species found within the deep-sea fish assemblages. All four areas are characterised by distinctly different and well-documented oceanographic conditions, biogeographical affinities and fishing exploitation. The results showed clear differences between the Atlantic and the Mediterranean deep-sea fish fauna, not only in density, species richness and composition, but also in the structure of the biomass that constitutes these assemblages. These differences are discussed in relation to environmental conditions and fishing pattern, which have determined the adaptive responses of both individual species and the whole ecosystem.
dc.description [ES] Los datos obtenidos a partir de 214 pescas de arrastre de fondo con un sólo cable, realizadas a lo largo de un período de veinte años en el Mediterráneo occidental (cuencas argelina y balear) y Atlántico nor-oriental (Rockall Trough y Porcupine Seabight), entre 402 y 1993 m de profundidad, han permitido una comparación estandarizada de la densidad y de la composición y estructura de tamaños de la biomasa, tanto del conjunto de la ictiofauna como de las principales especies comunes en estas comunidades ícticas de gran profundidad. Estas cuatro áreas se caracterizan por diferencias, ampliamente documentadas, en sus condiciones oceanográficas, afinidades bio-geográficas y de explotación pesquera. Los resultados han mostrado claras diferencias entre la ictiofauna profunda atlántica y mediterránea, no sólo en términos de densidad, riqueza específica y composición, sino también en la estructura de la biomasa que compone estas comunidades. Estas diferencias se discuten en relación con las condiciones medio-ambientales y de explotación pesquera, las cuales han determinado las respuestas adaptativas, tanto de las especies individuales como del conjunto del ecosistema.
dc.description Support for the analysis of the Atlantic data was obtained from the following European Commission projects: DGXIV Study Contract (92-10) “Biological parameters of deep-water fish species”, MAST2-CT920033 and FAIR CT-95-655 “Developing deepwater fisheries: data for their assessment and for understanding their interaction with and impact on a fragile environment”. This latter project also supported the studies in the Algerian basin, while those in the Balearic basin were funded by the Spanish research programs BATIMAR (PAC86-008/ID821) and ZONAP (PB90-0166). The analysis of the data and the preparation of the paper was funded by a Spanish Government Studies License and a bursary from the Scottish Association for Marine Science.
dc.description Peer reviewed
dc.format 489570 bytes
dc.format application/pdf
dc.language eng
dc.publisher CSIC - Instituto de Ciencias del Mar (ICM)
dc.rights openAccess
dc.subject Deep-sea
dc.subject Fishes
dc.subject Community
dc.subject Biomass
dc.subject Size
dc.subject Western Mediterranean
dc.subject NE Atlantic
dc.subject Mar profundo
dc.subject Peces
dc.subject Comunidad
dc.subject Biomasa
dc.subject Tamaño
dc.subject Mediterráneo occidental
dc.subject Atlántico NE
dc.title Mediterranean and Atlantic deep-sea fish assemblages: differences in biomass composition and size-related structure
dc.title Comunidades de peces de profundidad en el Mediterráneo y el Atlántico: diferencias en la composición de la biomasa y la estructura de tamaños
dc.type Artículo


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