Spatial distribution, biomass and size structure of Ctenodiscus australis (Echinodermata: Asteroidea) in shelf-break areas, Argentine

Autores
Escolar, Mariana; Hernández, Daniel R.; Bremec, Claudia Silvia
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Ctenodiscus australis is a common sea star in the Argentine Continental Shelf. Nevertheless, information about its population parameters lacks. We investigated the spatial distribution, biomass and size structure of this sea star through a spatial and temporal scale in Patagonian scallop (Zygochlamys patagonica) fishing grounds associated with the shelf-break front in the Argentine Sea. The sea star C. australis was very frequent in the Patagonian scallop management units (MUs) analyzed and reached 100% presence in most of them. The species biomass showed latitudinal differences with the highest values in northern MUs during the period 2002-2005, probably related to the organic content in sediments. The comparative study in two areas subjected to different fishing effort in the same MU showed the highest biomass of this sea star in the area with low fishing effort. The size frequency distribution of C. australis suggests a low or sporadic recruitment and slow growth. Differences in the median size were found among MUs but these cannot be attributed to fishing effort.
Fil: Escolar, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Hernández, Daniel R.. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Bremec, Claudia Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Materia
ARGENTINE SEA
CTENODISCUS AUSTRALIS
LATITUDINAL DISTRIBUTION
SHELF-BREAK AREAS
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:11336/279969
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Spatial distribution, biomass and size structure of Ctenodiscus australis (Echinodermata: Asteroidea) in shelf-break areas, ArgentineEscolar, MarianaHernández, Daniel R.Bremec, Claudia SilviaARGENTINE SEACTENODISCUS AUSTRALISLATITUDINAL DISTRIBUTIONSHELF-BREAK AREAShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Ctenodiscus australis is a common sea star in the Argentine Continental Shelf. Nevertheless, information about its population parameters lacks. We investigated the spatial distribution, biomass and size structure of this sea star through a spatial and temporal scale in Patagonian scallop (Zygochlamys patagonica) fishing grounds associated with the shelf-break front in the Argentine Sea. The sea star C. australis was very frequent in the Patagonian scallop management units (MUs) analyzed and reached 100% presence in most of them. The species biomass showed latitudinal differences with the highest values in northern MUs during the period 2002-2005, probably related to the organic content in sediments. The comparative study in two areas subjected to different fishing effort in the same MU showed the highest biomass of this sea star in the area with low fishing effort. The size frequency distribution of C. australis suggests a low or sporadic recruitment and slow growth. Differences in the median size were found among MUs but these cannot be attributed to fishing effort.Fil: Escolar, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: Hernández, Daniel R.. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: Bremec, Claudia Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaTaylor & Francis As2011-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/279969Escolar, Mariana; Hernández, Daniel R.; Bremec, Claudia Silvia; Spatial distribution, biomass and size structure of Ctenodiscus australis (Echinodermata: Asteroidea) in shelf-break areas, Argentine; Taylor & Francis As; Marine Biology Research; 7; 6; 8-2011; 608-6161745-1000CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/17451000.2010.528774info:eu-repo/semantics/altIdentifier/doi/10.1080/17451000.2010.528774info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-06T13:35:08Zoai:ri.conicet.gov.ar:11336/279969instacron: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:34982026-02-06 13:35:09.095CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spatial distribution, biomass and size structure of Ctenodiscus australis (Echinodermata: Asteroidea) in shelf-break areas, Argentine
title Spatial distribution, biomass and size structure of Ctenodiscus australis (Echinodermata: Asteroidea) in shelf-break areas, Argentine
spellingShingle Spatial distribution, biomass and size structure of Ctenodiscus australis (Echinodermata: Asteroidea) in shelf-break areas, Argentine
Escolar, Mariana
ARGENTINE SEA
CTENODISCUS AUSTRALIS
LATITUDINAL DISTRIBUTION
SHELF-BREAK AREAS
title_short Spatial distribution, biomass and size structure of Ctenodiscus australis (Echinodermata: Asteroidea) in shelf-break areas, Argentine
title_full Spatial distribution, biomass and size structure of Ctenodiscus australis (Echinodermata: Asteroidea) in shelf-break areas, Argentine
title_fullStr Spatial distribution, biomass and size structure of Ctenodiscus australis (Echinodermata: Asteroidea) in shelf-break areas, Argentine
title_full_unstemmed Spatial distribution, biomass and size structure of Ctenodiscus australis (Echinodermata: Asteroidea) in shelf-break areas, Argentine
title_sort Spatial distribution, biomass and size structure of Ctenodiscus australis (Echinodermata: Asteroidea) in shelf-break areas, Argentine
dc.creator.none.fl_str_mv Escolar, Mariana
Hernández, Daniel R.
Bremec, Claudia Silvia
author Escolar, Mariana
author_facet Escolar, Mariana
Hernández, Daniel R.
Bremec, Claudia Silvia
author_role author
author2 Hernández, Daniel R.
Bremec, Claudia Silvia
author2_role author
author
dc.subject.none.fl_str_mv ARGENTINE SEA
CTENODISCUS AUSTRALIS
LATITUDINAL DISTRIBUTION
SHELF-BREAK AREAS
topic ARGENTINE SEA
CTENODISCUS AUSTRALIS
LATITUDINAL DISTRIBUTION
SHELF-BREAK AREAS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Ctenodiscus australis is a common sea star in the Argentine Continental Shelf. Nevertheless, information about its population parameters lacks. We investigated the spatial distribution, biomass and size structure of this sea star through a spatial and temporal scale in Patagonian scallop (Zygochlamys patagonica) fishing grounds associated with the shelf-break front in the Argentine Sea. The sea star C. australis was very frequent in the Patagonian scallop management units (MUs) analyzed and reached 100% presence in most of them. The species biomass showed latitudinal differences with the highest values in northern MUs during the period 2002-2005, probably related to the organic content in sediments. The comparative study in two areas subjected to different fishing effort in the same MU showed the highest biomass of this sea star in the area with low fishing effort. The size frequency distribution of C. australis suggests a low or sporadic recruitment and slow growth. Differences in the median size were found among MUs but these cannot be attributed to fishing effort.
Fil: Escolar, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Hernández, Daniel R.. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Bremec, Claudia Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
description Ctenodiscus australis is a common sea star in the Argentine Continental Shelf. Nevertheless, information about its population parameters lacks. We investigated the spatial distribution, biomass and size structure of this sea star through a spatial and temporal scale in Patagonian scallop (Zygochlamys patagonica) fishing grounds associated with the shelf-break front in the Argentine Sea. The sea star C. australis was very frequent in the Patagonian scallop management units (MUs) analyzed and reached 100% presence in most of them. The species biomass showed latitudinal differences with the highest values in northern MUs during the period 2002-2005, probably related to the organic content in sediments. The comparative study in two areas subjected to different fishing effort in the same MU showed the highest biomass of this sea star in the area with low fishing effort. The size frequency distribution of C. australis suggests a low or sporadic recruitment and slow growth. Differences in the median size were found among MUs but these cannot be attributed to fishing effort.
publishDate 2011
dc.date.none.fl_str_mv 2011-08
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/11336/279969
Escolar, Mariana; Hernández, Daniel R.; Bremec, Claudia Silvia; Spatial distribution, biomass and size structure of Ctenodiscus australis (Echinodermata: Asteroidea) in shelf-break areas, Argentine; Taylor & Francis As; Marine Biology Research; 7; 6; 8-2011; 608-616
1745-1000
CONICET Digital
CONICET
url http://hdl.handle.net/11336/279969
identifier_str_mv Escolar, Mariana; Hernández, Daniel R.; Bremec, Claudia Silvia; Spatial distribution, biomass and size structure of Ctenodiscus australis (Echinodermata: Asteroidea) in shelf-break areas, Argentine; Taylor & Francis As; Marine Biology Research; 7; 6; 8-2011; 608-616
1745-1000
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://www.tandfonline.com/doi/full/10.1080/17451000.2010.528774
info:eu-repo/semantics/altIdentifier/doi/10.1080/17451000.2010.528774
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
dc.publisher.none.fl_str_mv Taylor & Francis As
publisher.none.fl_str_mv Taylor & Francis As
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 12.595271

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