Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsi

Autores
Ocampo Reinaldo, Matías; González, Raul Alberto Candido; Romero, Maria Alejandra
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The diet composition and feeding strategy of the Argentine hake Merluccius hubbsi in the San Matías Gulf were analysed in order to use this information for the sustainable management of the fishery. Merluccius hubbsi behaved as an opportunistic predator. Small M. hubbsi consumed plank- tonic crustaceans, whereas medium and large fish ate numerous prey taxa with low frequency of occurrence and variable specific abundance. Intra- and intercohort cannibalism were detected in all size groups and were particularly significant in large M. hubbsi. Medium-sized M. hubbsi consumed small conspecifics and large-sized M. hubbsi consumed both small and medium M. hubbsi.These results indicate that the removal of large M. hubbsi by fishing may increase the risk of overfish- ing by two combined effects: a direct effect of recruitment-overfishing and an indirect effect of growth-overfishing through an enhanced cannibalism of medium M. hubbsi on small M. hubbsi. Intra- and intercohort cannibalism and other trophic relationships in the M. hubbsi should therefore be considered explicitly in stock assessment models.
Fil: Ocampo Reinaldo, Matías. Universidad Nacional del Comahue. Instituto de Biología Marina y Pesquera Almirante Storni; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: González, Raul Alberto Candido. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. IDEPA - Subsede San Antonio Oeste; Argentina
Fil: Romero, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. IDEPA - Subsede San Antonio Oeste; Argentina
Materia
BOTTOM TRAWL FISHERY
DIET
LONGLINE FISHERY
PREDATION
SAN MATÍAS GULF
PATAGONIA
STOMACH CONTENTS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/278201
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/278201
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsiOcampo Reinaldo, MatíasGonzález, Raul Alberto CandidoRomero, Maria AlejandraBOTTOM TRAWL FISHERYDIETLONGLINE FISHERYPREDATIONSAN MATÍAS GULFPATAGONIASTOMACH CONTENTShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The diet composition and feeding strategy of the Argentine hake Merluccius hubbsi in the San Matías Gulf were analysed in order to use this information for the sustainable management of the fishery. Merluccius hubbsi behaved as an opportunistic predator. Small M. hubbsi consumed plank- tonic crustaceans, whereas medium and large fish ate numerous prey taxa with low frequency of occurrence and variable specific abundance. Intra- and intercohort cannibalism were detected in all size groups and were particularly significant in large M. hubbsi. Medium-sized M. hubbsi consumed small conspecifics and large-sized M. hubbsi consumed both small and medium M. hubbsi.These results indicate that the removal of large M. hubbsi by fishing may increase the risk of overfish- ing by two combined effects: a direct effect of recruitment-overfishing and an indirect effect of growth-overfishing through an enhanced cannibalism of medium M. hubbsi on small M. hubbsi. Intra- and intercohort cannibalism and other trophic relationships in the M. hubbsi should therefore be considered explicitly in stock assessment models.Fil: Ocampo Reinaldo, Matías. Universidad Nacional del Comahue. Instituto de Biología Marina y Pesquera Almirante Storni; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: González, Raul Alberto Candido. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. IDEPA - Subsede San Antonio Oeste; ArgentinaFil: Romero, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. IDEPA - Subsede San Antonio Oeste; ArgentinaWiley Blackwell Publishing, Inc2011-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/278201Ocampo Reinaldo, Matías; González, Raul Alberto Candido; Romero, Maria Alejandra; Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsi; Wiley Blackwell Publishing, Inc; Journal of Fish Biology; 79; 7; 9-2011; 1795-18140022-1112CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1111/j.1095-8649.2011.03117.xinfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1095-8649.2011.03117.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-23T13:13:40Zoai:ri.conicet.gov.ar:11336/278201instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-12-23 13:13:40.456CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsi
title Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsi
spellingShingle Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsi
Ocampo Reinaldo, Matías
BOTTOM TRAWL FISHERY
DIET
LONGLINE FISHERY
PREDATION
SAN MATÍAS GULF
PATAGONIA
STOMACH CONTENTS
title_short Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsi
title_full Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsi
title_fullStr Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsi
title_full_unstemmed Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsi
title_sort Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsi
dc.creator.none.fl_str_mv Ocampo Reinaldo, Matías
González, Raul Alberto Candido
Romero, Maria Alejandra
author Ocampo Reinaldo, Matías
author_facet Ocampo Reinaldo, Matías
González, Raul Alberto Candido
Romero, Maria Alejandra
author_role author
author2 González, Raul Alberto Candido
Romero, Maria Alejandra
author2_role author
author
dc.subject.none.fl_str_mv BOTTOM TRAWL FISHERY
DIET
LONGLINE FISHERY
PREDATION
SAN MATÍAS GULF
PATAGONIA
STOMACH CONTENTS
topic BOTTOM TRAWL FISHERY
DIET
LONGLINE FISHERY
PREDATION
SAN MATÍAS GULF
PATAGONIA
STOMACH CONTENTS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The diet composition and feeding strategy of the Argentine hake Merluccius hubbsi in the San Matías Gulf were analysed in order to use this information for the sustainable management of the fishery. Merluccius hubbsi behaved as an opportunistic predator. Small M. hubbsi consumed plank- tonic crustaceans, whereas medium and large fish ate numerous prey taxa with low frequency of occurrence and variable specific abundance. Intra- and intercohort cannibalism were detected in all size groups and were particularly significant in large M. hubbsi. Medium-sized M. hubbsi consumed small conspecifics and large-sized M. hubbsi consumed both small and medium M. hubbsi.These results indicate that the removal of large M. hubbsi by fishing may increase the risk of overfish- ing by two combined effects: a direct effect of recruitment-overfishing and an indirect effect of growth-overfishing through an enhanced cannibalism of medium M. hubbsi on small M. hubbsi. Intra- and intercohort cannibalism and other trophic relationships in the M. hubbsi should therefore be considered explicitly in stock assessment models.
Fil: Ocampo Reinaldo, Matías. Universidad Nacional del Comahue. Instituto de Biología Marina y Pesquera Almirante Storni; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: González, Raul Alberto Candido. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. IDEPA - Subsede San Antonio Oeste; Argentina
Fil: Romero, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas. IDEPA - Subsede San Antonio Oeste; Argentina
description The diet composition and feeding strategy of the Argentine hake Merluccius hubbsi in the San Matías Gulf were analysed in order to use this information for the sustainable management of the fishery. Merluccius hubbsi behaved as an opportunistic predator. Small M. hubbsi consumed plank- tonic crustaceans, whereas medium and large fish ate numerous prey taxa with low frequency of occurrence and variable specific abundance. Intra- and intercohort cannibalism were detected in all size groups and were particularly significant in large M. hubbsi. Medium-sized M. hubbsi consumed small conspecifics and large-sized M. hubbsi consumed both small and medium M. hubbsi.These results indicate that the removal of large M. hubbsi by fishing may increase the risk of overfish- ing by two combined effects: a direct effect of recruitment-overfishing and an indirect effect of growth-overfishing through an enhanced cannibalism of medium M. hubbsi on small M. hubbsi. Intra- and intercohort cannibalism and other trophic relationships in the M. hubbsi should therefore be considered explicitly in stock assessment models.
publishDate 2011
dc.date.none.fl_str_mv 2011-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/278201
Ocampo Reinaldo, Matías; González, Raul Alberto Candido; Romero, Maria Alejandra; Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsi; Wiley Blackwell Publishing, Inc; Journal of Fish Biology; 79; 7; 9-2011; 1795-1814
0022-1112
CONICET Digital
CONICET
url http://hdl.handle.net/11336/278201
identifier_str_mv Ocampo Reinaldo, Matías; González, Raul Alberto Candido; Romero, Maria Alejandra; Feeding strategy and cannibalism of the Argentine hake Merluccius hubbsi; Wiley Blackwell Publishing, Inc; Journal of Fish Biology; 79; 7; 9-2011; 1795-1814
0022-1112
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1111/j.1095-8649.2011.03117.x
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1095-8649.2011.03117.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.952241

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