Spawning pattern and batch fecundity of the European hake (Merluccius merluccius (Linnaeus, 1758)) in the western Mediterranean
12 pages, 12 figures
| Authors: | , , |
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| Format: | article |
| Publication Date: | 2008 |
| Country: | España |
| Institution: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repository: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/9029 |
| Online Access: | http://hdl.handle.net/10261/9029 |
| Access Level: | Open access |
| Keyword: | Merluccius merluccius Cascading events Spawning pattern Fecundity Western Mediterranean Patrón reproductivo Cascadas submarinas Fecundidad Mediterráneo occidental |
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Spawning pattern and batch fecundity of the European hake (Merluccius merluccius (Linnaeus, 1758)) in the western MediterraneanPatrón reproductivo y fecundidad de la merluza (Merluccius merluccius (Linnaeus, 1758)) en el Mediterráneo occidentalRecasens, LauraChiericoni, VeliaBelcari, PaolaMerluccius merlucciusCascading eventsSpawning patternFecundityWestern MediterraneanPatrón reproductivoCascadas submarinasFecundidadMediterráneo occidental12 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 occidentalThis work was supported by the EU LLUCET Project (FAIR CT-97-3522)Peer reviewedConsejo Superior de Investigaciones Científicas (España)European Commission200820082008info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_65011725705 bytesapplication/pdfhttp://hdl.handle.net/10261/9029reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.3989/scimar.2008.72n4721info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/90292026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
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 |
| title |
Spawning pattern and batch fecundity of the European hake (Merluccius merluccius (Linnaeus, 1758)) in the western Mediterranean |
| spellingShingle |
Spawning pattern and batch fecundity of the European hake (Merluccius merluccius (Linnaeus, 1758)) in the western Mediterranean Recasens, Laura Merluccius merluccius Cascading events Spawning pattern Fecundity Western Mediterranean Patrón reproductivo Cascadas submarinas Fecundidad Mediterráneo occidental |
| 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 |
| dc.creator.none.fl_str_mv |
Recasens, Laura Chiericoni, Velia Belcari, Paola |
| author |
Recasens, Laura |
| author_facet |
Recasens, Laura Chiericoni, Velia Belcari, Paola |
| author_role |
author |
| author2 |
Chiericoni, Velia Belcari, Paola |
| author2_role |
author author |
| dc.contributor.none.fl_str_mv |
European Commission |
| dc.subject.none.fl_str_mv |
Merluccius merluccius Cascading events Spawning pattern Fecundity Western Mediterranean Patrón reproductivo Cascadas submarinas Fecundidad Mediterráneo occidental |
| topic |
Merluccius merluccius Cascading events Spawning pattern Fecundity Western Mediterranean Patrón reproductivo Cascadas submarinas Fecundidad Mediterráneo occidental |
| description |
12 pages, 12 figures |
| publishDate |
2008 |
| dc.date.none.fl_str_mv |
2008 2008 2008 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/9029 |
| url |
http://hdl.handle.net/10261/9029 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
https://doi.org/10.3989/scimar.2008.72n4721 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
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1725705 bytes application/pdf |
| dc.publisher.none.fl_str_mv |
Consejo Superior de Investigaciones Científicas (España) |
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Consejo Superior de Investigaciones Científicas (España) |
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reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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15,811543 |