Species biology of elasmobranch by-catch in bottom-trawl fishery in the northern Patagonian shelf, Argentina

Autores
Crespi Abril, Augusto Cesar; Pedraza, Susana Noemi; Garcia, N. A.; Crespo, Enrique Alberto
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The present study analyzes the species composition of elasmobranch by-catch of bottom trawlers that targeted common hake Merluccius hubbsi on the northern and central Patagonian shelf during 2001, 2002 and 2003. Six surveys were conducted, and a total of 20 species of elasmobranchs were observed. Zearaja chilensis and Squalus acanthias were present in all surveys. The mean values of relative abundance ranged between 9.12 and 151 ind. km−2 for Z. chilensis and between 8.24 and 298 ind. km−2 for S. acanthias. Bathyraja brachyurops, B. macloviana, B. magellanica, Discopyge sp. and Psammobatis lentiginosa were registered only in 1 survey, and their relative abundance did not exceed 15 ind. km−2. There were no patterns detected between the mean size of the individuals and the depth of capture for any of the captured species. Length-to-weight relationships were estimated for 14 species, and size-at-maturity was estimated for 8 species.
Fil: Crespi Abril, Augusto Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Pedraza, Susana Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Garcia, N. A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Materia
BY-CATCH
SIZE-AT-MATURITY
ELASMOBRANCHS
LENGTH-TO-WEIGHT RELATIONSHIPS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/3498
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/3498
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Species biology of elasmobranch by-catch in bottom-trawl fishery in the northern Patagonian shelf, ArgentinaCrespi Abril, Augusto CesarPedraza, Susana NoemiGarcia, N. A.Crespo, Enrique AlbertoBY-CATCHSIZE-AT-MATURITYELASMOBRANCHSLENGTH-TO-WEIGHT RELATIONSHIPShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The present study analyzes the species composition of elasmobranch by-catch of bottom trawlers that targeted common hake Merluccius hubbsi on the northern and central Patagonian shelf during 2001, 2002 and 2003. Six surveys were conducted, and a total of 20 species of elasmobranchs were observed. Zearaja chilensis and Squalus acanthias were present in all surveys. The mean values of relative abundance ranged between 9.12 and 151 ind. km−2 for Z. chilensis and between 8.24 and 298 ind. km−2 for S. acanthias. Bathyraja brachyurops, B. macloviana, B. magellanica, Discopyge sp. and Psammobatis lentiginosa were registered only in 1 survey, and their relative abundance did not exceed 15 ind. km−2. There were no patterns detected between the mean size of the individuals and the depth of capture for any of the captured species. Length-to-weight relationships were estimated for 14 species, and size-at-maturity was estimated for 8 species.Fil: Crespi Abril, Augusto Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Pedraza, Susana Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Garcia, N. A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaFil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaInter-Research2013-10info: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/11336/3498Crespi Abril, Augusto Cesar; Pedraza, Susana Noemi; Garcia, N. A.; Crespo, Enrique Alberto; Species biology of elasmobranch by-catch in bottom-trawl fishery in the northern Patagonian shelf, Argentina; Inter-Research; Aquatic Biology; 19; 3; 10-2013; 239-2511864-7790enginfo:eu-repo/semantics/altIdentifier/doi/doi:10.3354/ab00535info:eu-repo/semantics/altIdentifier/url/http://www.int-res.com/abstracts/ab/v19/n3/p239-251/info:eu-repo/semantics/altIdentifier/issn/1864-7790info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:59:11Zoai:ri.conicet.gov.ar:11336/3498instacron: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:34982025-09-03 09:59:11.835CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Species biology of elasmobranch by-catch in bottom-trawl fishery in the northern Patagonian shelf, Argentina
title Species biology of elasmobranch by-catch in bottom-trawl fishery in the northern Patagonian shelf, Argentina
spellingShingle Species biology of elasmobranch by-catch in bottom-trawl fishery in the northern Patagonian shelf, Argentina
Crespi Abril, Augusto Cesar
BY-CATCH
SIZE-AT-MATURITY
ELASMOBRANCHS
LENGTH-TO-WEIGHT RELATIONSHIPS
title_short Species biology of elasmobranch by-catch in bottom-trawl fishery in the northern Patagonian shelf, Argentina
title_full Species biology of elasmobranch by-catch in bottom-trawl fishery in the northern Patagonian shelf, Argentina
title_fullStr Species biology of elasmobranch by-catch in bottom-trawl fishery in the northern Patagonian shelf, Argentina
title_full_unstemmed Species biology of elasmobranch by-catch in bottom-trawl fishery in the northern Patagonian shelf, Argentina
title_sort Species biology of elasmobranch by-catch in bottom-trawl fishery in the northern Patagonian shelf, Argentina
dc.creator.none.fl_str_mv Crespi Abril, Augusto Cesar
Pedraza, Susana Noemi
Garcia, N. A.
Crespo, Enrique Alberto
author Crespi Abril, Augusto Cesar
author_facet Crespi Abril, Augusto Cesar
Pedraza, Susana Noemi
Garcia, N. A.
Crespo, Enrique Alberto
author_role author
author2 Pedraza, Susana Noemi
Garcia, N. A.
Crespo, Enrique Alberto
author2_role author
author
author
dc.subject.none.fl_str_mv BY-CATCH
SIZE-AT-MATURITY
ELASMOBRANCHS
LENGTH-TO-WEIGHT RELATIONSHIPS
topic BY-CATCH
SIZE-AT-MATURITY
ELASMOBRANCHS
LENGTH-TO-WEIGHT RELATIONSHIPS
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 present study analyzes the species composition of elasmobranch by-catch of bottom trawlers that targeted common hake Merluccius hubbsi on the northern and central Patagonian shelf during 2001, 2002 and 2003. Six surveys were conducted, and a total of 20 species of elasmobranchs were observed. Zearaja chilensis and Squalus acanthias were present in all surveys. The mean values of relative abundance ranged between 9.12 and 151 ind. km−2 for Z. chilensis and between 8.24 and 298 ind. km−2 for S. acanthias. Bathyraja brachyurops, B. macloviana, B. magellanica, Discopyge sp. and Psammobatis lentiginosa were registered only in 1 survey, and their relative abundance did not exceed 15 ind. km−2. There were no patterns detected between the mean size of the individuals and the depth of capture for any of the captured species. Length-to-weight relationships were estimated for 14 species, and size-at-maturity was estimated for 8 species.
Fil: Crespi Abril, Augusto Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Pedraza, Susana Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Garcia, N. A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
description The present study analyzes the species composition of elasmobranch by-catch of bottom trawlers that targeted common hake Merluccius hubbsi on the northern and central Patagonian shelf during 2001, 2002 and 2003. Six surveys were conducted, and a total of 20 species of elasmobranchs were observed. Zearaja chilensis and Squalus acanthias were present in all surveys. The mean values of relative abundance ranged between 9.12 and 151 ind. km−2 for Z. chilensis and between 8.24 and 298 ind. km−2 for S. acanthias. Bathyraja brachyurops, B. macloviana, B. magellanica, Discopyge sp. and Psammobatis lentiginosa were registered only in 1 survey, and their relative abundance did not exceed 15 ind. km−2. There were no patterns detected between the mean size of the individuals and the depth of capture for any of the captured species. Length-to-weight relationships were estimated for 14 species, and size-at-maturity was estimated for 8 species.
publishDate 2013
dc.date.none.fl_str_mv 2013-10
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/11336/3498
Crespi Abril, Augusto Cesar; Pedraza, Susana Noemi; Garcia, N. A.; Crespo, Enrique Alberto; Species biology of elasmobranch by-catch in bottom-trawl fishery in the northern Patagonian shelf, Argentina; Inter-Research; Aquatic Biology; 19; 3; 10-2013; 239-251
1864-7790
url http://hdl.handle.net/11336/3498
identifier_str_mv Crespi Abril, Augusto Cesar; Pedraza, Susana Noemi; Garcia, N. A.; Crespo, Enrique Alberto; Species biology of elasmobranch by-catch in bottom-trawl fishery in the northern Patagonian shelf, Argentina; Inter-Research; Aquatic Biology; 19; 3; 10-2013; 239-251
1864-7790
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/doi:10.3354/ab00535
info:eu-repo/semantics/altIdentifier/url/http://www.int-res.com/abstracts/ab/v19/n3/p239-251/
info:eu-repo/semantics/altIdentifier/issn/1864-7790
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Inter-Research
publisher.none.fl_str_mv Inter-Research
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 13.13397

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