Spawning pattern and batch fecundity of the European hake (Merluccius merluccius (Linnaeus, 1758)) in the western Mediterranean

Spawning pattern and batch fecundity of the European hake (Merluccius merluccius (Linnaeus, 1758)) in the western Mediterranean

12 pages, 12 figures

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Bibliographic Details
Main Authors: Recasens, Laura, Chiericoni, Velia, Belcari, Paola
Other Authors: European Commission
Format: artículo biblioteca
Language:English
Published: Consejo Superior de Investigaciones Científicas (España) 2008-12-30
Subjects:Merluccius merluccius, Cascading events, Spawning pattern, Fecundity, Western Mediterranean, Patrón reproductivo, Cascadas submarinas, Fecundidad, Mediterráneo occidental,
Online Access:http://hdl.handle.net/10261/9029
http://dx.doi.org/10.13039/501100000780
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spelling dig-icm-es-10261-90292021-04-08T12:18:13Z Spawning pattern and batch fecundity of the European hake (Merluccius merluccius (Linnaeus, 1758)) in the western Mediterranean Patrón reproductivo y fecundidad de la merluza (Merluccius merluccius (Linnaeus, 1758)) en el Mediterráneo occidental Recasens, Laura Chiericoni, Velia Belcari, Paola European Commission Merluccius merluccius Cascading events Spawning pattern Fecundity Western Mediterranean Patrón reproductivo Cascadas submarinas Fecundidad Mediterráneo occidental 12 pages, 12 figures [EN] The spawning cycle of the European hake (Merluccius merluccius, (Linnaeus, 1758)) was studied in two western Mediterranean areas, the Catalan Sea and the northern Tyrrhenian Sea, including observation of the monthly seasonal variation of the gonad maturity and the gonadosomatic index (GSI). The estimation of the maturity stages by GSI gave similar values in the two study areas: the spawning stage (IV) was easily distinguished from the other maturity stages and its range of variation showed a low overlap with stage III and no overlap with other stages. Although in both study areas active females were present during all the sampled months, the peak of reproductive activity was concentrated from February to May in the northern Tyrrhenian Sea but from August to December in the Catalan Sea, which was subjected to winter cascading events. Batch fecundity gave similar values in the Catalan and northern Tyrrhenian Seas: 204 and 202 eggs per gonad-free female gram, respectively. An asynchronous oocyte development is suggested for M. merluccius in the western Mediterranean [ES] Se ha estudiado el ciclo reproductivo de la merluza (Merluccius merluccius, (Linnaeus, 1758)) en dos áreas del Mediterráneo occidental, el Mar Catalán y el norte del Mar Tirreno, analizando la evolución mensual de la madurez en las gónadas y el índice gonadosomático (GSI). La estimación del estadio de madurez mediante el GSI dio resultados parecidos en ambas áreas de estudio: el estadio de puesta (IV) resultó fácil de distinguir de los otros estadios de madurez y su rango de variación mostró poca superposición con el estadio III y ninguna con los otros estadios. Aunque en ambas áreas de estudio se encontraron hembras activas durante todos los meses muestreados, el pico de actividad reproductiva se concentró entre febrero y mayo en el norte del Mar Tirreno, mientras que en el Mar Catalán es entre agosto y diciembre, esta última área sujeta en invierno a fenómenos de cascadas submarinas. La fecundidad relativa presentó valores similares en los mares Catalán y Tirreno norte: 204 huevos por gramo de hembras sin gónada y 202, respectivamente. Se sugiere un desarrollo ovocitario asíncrono para M. merluccius del Mediterráneo occidental This work was supported by the EU LLUCET Project (FAIR CT-97-3522) Peer reviewed 2008-12-06T20:50:11Z 2008-12-06T20:50:11Z 2008-12-30 artículo http://purl.org/coar/resource_type/c_6501 Scientia Marina 72(4): 721-732 (2008) 0214-8358 http://hdl.handle.net/10261/9029 10.3989/scimar.2008.72n4721 1886-8134 http://dx.doi.org/10.13039/501100000780 en https://doi.org/10.3989/scimar.2008.72n4721 open 1725705 bytes application/pdf Consejo Superior de Investigaciones Científicas (España)
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic Merluccius merluccius
Cascading events
Spawning pattern
Fecundity
Western Mediterranean
Patrón reproductivo
Cascadas submarinas
Fecundidad
Mediterráneo occidental
Merluccius merluccius
Cascading events
Spawning pattern
Fecundity
Western Mediterranean
Patrón reproductivo
Cascadas submarinas
Fecundidad
Mediterráneo occidental
spellingShingle Merluccius merluccius
Cascading events
Spawning pattern
Fecundity
Western Mediterranean
Patrón reproductivo
Cascadas submarinas
Fecundidad
Mediterráneo occidental
Merluccius merluccius
Cascading events
Spawning pattern
Fecundity
Western Mediterranean
Patrón reproductivo
Cascadas submarinas
Fecundidad
Mediterráneo occidental
Recasens, Laura
Chiericoni, Velia
Belcari, Paola
Spawning pattern and batch fecundity of the European hake (Merluccius merluccius (Linnaeus, 1758)) in the western Mediterranean
description 12 pages, 12 figures
author2 European Commission
author_facet European Commission
Recasens, Laura
Chiericoni, Velia
Belcari, Paola
format artículo
topic_facet Merluccius merluccius
Cascading events
Spawning pattern
Fecundity
Western Mediterranean
Patrón reproductivo
Cascadas submarinas
Fecundidad
Mediterráneo occidental
author Recasens, Laura
Chiericoni, Velia
Belcari, Paola
author_sort Recasens, Laura
title Spawning pattern and batch fecundity of the European hake (Merluccius merluccius (Linnaeus, 1758)) in the western Mediterranean
title_short Spawning pattern and batch fecundity of the European hake (Merluccius merluccius (Linnaeus, 1758)) in the western Mediterranean
title_full Spawning pattern and batch fecundity of the European hake (Merluccius merluccius (Linnaeus, 1758)) in the western Mediterranean
title_fullStr Spawning pattern and batch fecundity of the European hake (Merluccius merluccius (Linnaeus, 1758)) in the western Mediterranean
title_full_unstemmed Spawning pattern and batch fecundity of the European hake (Merluccius merluccius (Linnaeus, 1758)) in the western Mediterranean
title_sort spawning pattern and batch fecundity of the european hake (merluccius merluccius (linnaeus, 1758)) in the western mediterranean
publisher Consejo Superior de Investigaciones Científicas (España)
publishDate 2008-12-30
url http://hdl.handle.net/10261/9029
http://dx.doi.org/10.13039/501100000780
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AT belcaripaola spawningpatternandbatchfecundityoftheeuropeanhakemerlucciusmerlucciuslinnaeus1758inthewesternmediterranean
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