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Article . 1996 . Peer-reviewed
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DIGITAL.CSIC
Article . 2013 . Peer-reviewed
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La explotación de los omastréfidos lllex coindetii y Todaropsis eblanae (Molluscao Cephalopoda) en aguas de Galicia

Authors: González, A.F.; Rasero, M.; Guerra, A.;

La explotación de los omastréfidos lllex coindetii y Todaropsis eblanae (Molluscao Cephalopoda) en aguas de Galicia

Abstract

[ES] Los índices de abundancia de 21 campañas de prospección pesquera realizadas en la plataforma y talud continentales de Galicia (30-500 m de profundidad) entre 1973 y 1991 mostraron que Illex coindetii apareció en esta zona, en valores significativos, a partir de 7984, alcanzando su abundancia un máximo en 1987. Se discuten cuales pueden ser los motivos de este fenómeno y su relación con Ia abundancia de Todaropsis eblanae. Se describe la explotación de Illex coindetii y de Todaropsis eblanae, que se capturan y se comercializan.juntas, entre 1980 y 1991. Ambas especies constituyen capturas accidentales de la pesquería de arrastre dirigida a merluza, lirio, jurel y cigala en el Atlántico lbérico. En Galicia su captura anual varió en este período entre 490 y 2352 toneladas, experimentando importantes fluctuaciones mensuales e interanuales, ocurriendo los índices de descarga más elevados en primavera y otoño. Se discute cual puede ser el origen de estas variaciones. La captura de ambas especies en Galicia representó el 26% en peso y el 14% en valor económico en relación con la captura total de cefalópodos entre 1980 y 1991, mientras que para España ambas especies representaron el 10% en peso y el 4% en valor económico del total de cefalópodos. La pesquería gallega de omastréfidos (potas) no parece encontrarse en estado de sobreexplotación. Se proponen algunas medidas para mejorar el conocimiento de este recurso y su rendimiento

[EN] The abundance indices for 21 cruises of fish prospection performed on the continental slope and shelf of Galicia (30-500 m depth) between 1973 and 1991 showed that IIIex coinderil appeared in this zone, in significant value, from 1984 onwards, its abundance experiericing a maximun in 1987. The reasons for this phenomenon and its relationship with the abundance of Todaropsis eblanae are discussed. This article describes the exploitation of lllex coindetii and Todaropsis eblanae, caught and marketed together, between 1980 and 1991. Both species are taken as by-catch in the trawler fishery targetting hake, blue whiting, horse mackerel and Norway lobster in the Iberian Atlantic. In Galicia, the annual catch during this period varied between 490 and 2352 tonnes, experiencing important monthly and interannual fluctuations, with the highest unloading indices being recorded in spring and autumn. The origin of these variations is discussed. Catch of both species off the Galician coast represented 26% in weight and 14% in economic value with regard to the total cephalopod catch between 1980 and 1991, whereas taking Spain as a whole, both species represented 10% in weight and 4% in economic value of the total for cephalopods. The short-finned squid (ommastrephids) fishery in Galicia does not appear to be experiencing overfishing. Measures are proposed to improve knowledge of this resource and its yield

Este trabajo se ha realizado con el apoyo de dos proyectos, uno subvencionado por la Consellería de Pesca, Marisqueo y Acuicultura de la Xunta de Galicia (La pesquería de cefalópodos de Galicia: situación actual y perspectivas), y otro de la Unión Europea (AIRICT92- 0573)

13 pages, 7 figures, 1 table

Peer reviewed

Countries
Spain, Germany
Keywords

Cephalopods, Todaropsis eblonae, Todaropsis eblanae, Cefalópodos, Fisheries, Illex cointletii, Pesquerías, Illex coindetii, Galicia (NW Spain), Galicia

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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