Growth and age estimation of greater fork-beard (Phycis blennoides Brünnich, 1768) in the North and Northwest of the Iberian Peninsula (ICES Division VIIIc and IXa)

In 1996 and 1997, a wide size range of greater fork-beard (Phycis blennoides Brünnich, 1768) was sampled from experimental and research surveys, trawlers and commercial landings from ICES Divisions VIIIc and IXa. Otoliths were collected and aged. Sectioned otoliths displayed numerous weakly marked r...

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Detalhes bibliográficos
Autores: Casas-Sánchez, José Miguel, Piñeiro-Álvarez, Carmen Gloria
Formato: artículo
Fecha de publicación:2000
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/327679
Acesso em linha:http://hdl.handle.net/10261/327679
Access Level:acceso abierto
Palavra-chave:Centro Oceanográfico de Vigo
Pesquerías
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oai_identifier_str oai:digital.csic.es:10261/327679
network_acronym_str ES
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repository_id_str
spelling Growth and age estimation of greater fork-beard (Phycis blennoides Brünnich, 1768) in the North and Northwest of the Iberian Peninsula (ICES Division VIIIc and IXa)Casas-Sánchez, José MiguelPiñeiro-Álvarez, Carmen GloriaCentro Oceanográfico de VigoPesqueríasIn 1996 and 1997, a wide size range of greater fork-beard (Phycis blennoides Brünnich, 1768) was sampled from experimental and research surveys, trawlers and commercial landings from ICES Divisions VIIIc and IXa. Otoliths were collected and aged. Sectioned otoliths displayed numerous weakly marked rings that make ageing difficult. In the central part of the otolith, close to the nucleus, a strongly marked check ring is formed, apparently in association with a change in diet/environment from a pelagic to a demersal habit. The growth parameters by sexes separate and combined were estimated from age readings. The females grew faster; reaching 81 cm at 14 years, while the maximum age reached by males was 6 years from a specimen of 44 cm. The following length frequency distributions of the sampling catches showed a modal progression in the juvenile phase in agreement with the lengths estimated by the von Bertalanffy growth model for the ages group 1 and 2.No202320232000info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/327679reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésCentro Oceanográfico de Vigohttps://www.sciencedirect.com/science/article/pii/S0165783600001089info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3276792026-05-22T06:33:51Z
dc.title.none.fl_str_mv Growth and age estimation of greater fork-beard (Phycis blennoides Brünnich, 1768) in the North and Northwest of the Iberian Peninsula (ICES Division VIIIc and IXa)
title Growth and age estimation of greater fork-beard (Phycis blennoides Brünnich, 1768) in the North and Northwest of the Iberian Peninsula (ICES Division VIIIc and IXa)
spellingShingle Growth and age estimation of greater fork-beard (Phycis blennoides Brünnich, 1768) in the North and Northwest of the Iberian Peninsula (ICES Division VIIIc and IXa)
Casas-Sánchez, José Miguel
Centro Oceanográfico de Vigo
Pesquerías
title_short Growth and age estimation of greater fork-beard (Phycis blennoides Brünnich, 1768) in the North and Northwest of the Iberian Peninsula (ICES Division VIIIc and IXa)
title_full Growth and age estimation of greater fork-beard (Phycis blennoides Brünnich, 1768) in the North and Northwest of the Iberian Peninsula (ICES Division VIIIc and IXa)
title_fullStr Growth and age estimation of greater fork-beard (Phycis blennoides Brünnich, 1768) in the North and Northwest of the Iberian Peninsula (ICES Division VIIIc and IXa)
title_full_unstemmed Growth and age estimation of greater fork-beard (Phycis blennoides Brünnich, 1768) in the North and Northwest of the Iberian Peninsula (ICES Division VIIIc and IXa)
title_sort Growth and age estimation of greater fork-beard (Phycis blennoides Brünnich, 1768) in the North and Northwest of the Iberian Peninsula (ICES Division VIIIc and IXa)
dc.creator.none.fl_str_mv Casas-Sánchez, José Miguel
Piñeiro-Álvarez, Carmen Gloria
author Casas-Sánchez, José Miguel
author_facet Casas-Sánchez, José Miguel
Piñeiro-Álvarez, Carmen Gloria
author_role author
author2 Piñeiro-Álvarez, Carmen Gloria
author2_role author
dc.subject.none.fl_str_mv Centro Oceanográfico de Vigo
Pesquerías
topic Centro Oceanográfico de Vigo
Pesquerías
description In 1996 and 1997, a wide size range of greater fork-beard (Phycis blennoides Brünnich, 1768) was sampled from experimental and research surveys, trawlers and commercial landings from ICES Divisions VIIIc and IXa. Otoliths were collected and aged. Sectioned otoliths displayed numerous weakly marked rings that make ageing difficult. In the central part of the otolith, close to the nucleus, a strongly marked check ring is formed, apparently in association with a change in diet/environment from a pelagic to a demersal habit. The growth parameters by sexes separate and combined were estimated from age readings. The females grew faster; reaching 81 cm at 14 years, while the maximum age reached by males was 6 years from a specimen of 44 cm. The following length frequency distributions of the sampling catches showed a modal progression in the juvenile phase in agreement with the lengths estimated by the von Bertalanffy growth model for the ages group 1 and 2.
publishDate 2000
dc.date.none.fl_str_mv 2000
2023
2023
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/10261/327679
url http://hdl.handle.net/10261/327679
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Centro Oceanográfico de Vigo
https://www.sciencedirect.com/science/article/pii/S0165783600001089
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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