Morphometry of the northern Patagonian sympatric populations of Loligo sanpaulensis and Loligo gahi

Autores
Baron, Pedro Jose; Re, Maria Edith
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Loligo gahi and Loligo sanpaulensis (Mollusca: Cephalopoda), two squid species presently under exploitation in the south-west Atlantic, are sympatric in coastal waters of northern Patagonia. In the present study, the morphometry of both species' northern Patagonian populations was analysed and compared. Relationships between the morphometric variables and mantle length, the standard measure of size for squids, are allometric in most cases. Weight and fin length show different rates of growth relative to mantle length in males and females of both species. Fin length, fin width and mantle length are the best morphometric variables to discriminate the mantle/fin complexes. Free rachis length, gladius length and gladius width are the most useful to separate both species' pens. The best discrimination of the tentacles is provided by the diameter of the central and marginal suckers and the number of teeth on the three largest sucker rings. Discriminant functions are provided to allow the classification of individuals from both species and the identification of pens and tentacle clubs found in predators digestive contents.
Fil: Baron, Pedro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
Fil: Re, Maria Edith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
Materia
MORPHOMETRY
LOLIGO SANPAULENSIS
LOLIGO GAHI
PATAGONIA
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:11336/100345
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/100345
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Morphometry of the northern Patagonian sympatric populations of Loligo sanpaulensis and Loligo gahiBaron, Pedro JoseRe, Maria EdithMORPHOMETRYLOLIGO SANPAULENSISLOLIGO GAHIPATAGONIAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Loligo gahi and Loligo sanpaulensis (Mollusca: Cephalopoda), two squid species presently under exploitation in the south-west Atlantic, are sympatric in coastal waters of northern Patagonia. In the present study, the morphometry of both species' northern Patagonian populations was analysed and compared. Relationships between the morphometric variables and mantle length, the standard measure of size for squids, are allometric in most cases. Weight and fin length show different rates of growth relative to mantle length in males and females of both species. Fin length, fin width and mantle length are the best morphometric variables to discriminate the mantle/fin complexes. Free rachis length, gladius length and gladius width are the most useful to separate both species' pens. The best discrimination of the tentacles is provided by the diameter of the central and marginal suckers and the number of teeth on the three largest sucker rings. Discriminant functions are provided to allow the classification of individuals from both species and the identification of pens and tentacle clubs found in predators digestive contents.Fil: Baron, Pedro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; ArgentinaFil: Re, Maria Edith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; ArgentinaCambridge University Press2002-04info: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/11336/100345Baron, Pedro Jose; Re, Maria Edith; Morphometry of the northern Patagonian sympatric populations of Loligo sanpaulensis and Loligo gahi; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 82; 2; 4-2002; 269-2780025-3154CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/morphometry-of-the-northern-patagonian-sympatric-populations-of-loligo-sanpaulensis-and-loligo-gahi/EC58E71B6BAA17DE7753B82C9B6A90EDinfo:eu-repo/semantics/altIdentifier/doi/10.1017/S0025315402005453info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:21:22Zoai:ri.conicet.gov.ar:11336/100345instacron: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:34982025-10-22 11:21:22.75CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Morphometry of the northern Patagonian sympatric populations of Loligo sanpaulensis and Loligo gahi
title Morphometry of the northern Patagonian sympatric populations of Loligo sanpaulensis and Loligo gahi
spellingShingle Morphometry of the northern Patagonian sympatric populations of Loligo sanpaulensis and Loligo gahi
Baron, Pedro Jose
MORPHOMETRY
LOLIGO SANPAULENSIS
LOLIGO GAHI
PATAGONIA
title_short Morphometry of the northern Patagonian sympatric populations of Loligo sanpaulensis and Loligo gahi
title_full Morphometry of the northern Patagonian sympatric populations of Loligo sanpaulensis and Loligo gahi
title_fullStr Morphometry of the northern Patagonian sympatric populations of Loligo sanpaulensis and Loligo gahi
title_full_unstemmed Morphometry of the northern Patagonian sympatric populations of Loligo sanpaulensis and Loligo gahi
title_sort Morphometry of the northern Patagonian sympatric populations of Loligo sanpaulensis and Loligo gahi
dc.creator.none.fl_str_mv Baron, Pedro Jose
Re, Maria Edith
author Baron, Pedro Jose
author_facet Baron, Pedro Jose
Re, Maria Edith
author_role author
author2 Re, Maria Edith
author2_role author
dc.subject.none.fl_str_mv MORPHOMETRY
LOLIGO SANPAULENSIS
LOLIGO GAHI
PATAGONIA
topic MORPHOMETRY
LOLIGO SANPAULENSIS
LOLIGO GAHI
PATAGONIA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Loligo gahi and Loligo sanpaulensis (Mollusca: Cephalopoda), two squid species presently under exploitation in the south-west Atlantic, are sympatric in coastal waters of northern Patagonia. In the present study, the morphometry of both species' northern Patagonian populations was analysed and compared. Relationships between the morphometric variables and mantle length, the standard measure of size for squids, are allometric in most cases. Weight and fin length show different rates of growth relative to mantle length in males and females of both species. Fin length, fin width and mantle length are the best morphometric variables to discriminate the mantle/fin complexes. Free rachis length, gladius length and gladius width are the most useful to separate both species' pens. The best discrimination of the tentacles is provided by the diameter of the central and marginal suckers and the number of teeth on the three largest sucker rings. Discriminant functions are provided to allow the classification of individuals from both species and the identification of pens and tentacle clubs found in predators digestive contents.
Fil: Baron, Pedro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
Fil: Re, Maria Edith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
description Loligo gahi and Loligo sanpaulensis (Mollusca: Cephalopoda), two squid species presently under exploitation in the south-west Atlantic, are sympatric in coastal waters of northern Patagonia. In the present study, the morphometry of both species' northern Patagonian populations was analysed and compared. Relationships between the morphometric variables and mantle length, the standard measure of size for squids, are allometric in most cases. Weight and fin length show different rates of growth relative to mantle length in males and females of both species. Fin length, fin width and mantle length are the best morphometric variables to discriminate the mantle/fin complexes. Free rachis length, gladius length and gladius width are the most useful to separate both species' pens. The best discrimination of the tentacles is provided by the diameter of the central and marginal suckers and the number of teeth on the three largest sucker rings. Discriminant functions are provided to allow the classification of individuals from both species and the identification of pens and tentacle clubs found in predators digestive contents.
publishDate 2002
dc.date.none.fl_str_mv 2002-04
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/11336/100345
Baron, Pedro Jose; Re, Maria Edith; Morphometry of the northern Patagonian sympatric populations of Loligo sanpaulensis and Loligo gahi; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 82; 2; 4-2002; 269-278
0025-3154
CONICET Digital
CONICET
url http://hdl.handle.net/11336/100345
identifier_str_mv Baron, Pedro Jose; Re, Maria Edith; Morphometry of the northern Patagonian sympatric populations of Loligo sanpaulensis and Loligo gahi; Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 82; 2; 4-2002; 269-278
0025-3154
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.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/morphometry-of-the-northern-patagonian-sympatric-populations-of-loligo-sanpaulensis-and-loligo-gahi/EC58E71B6BAA17DE7753B82C9B6A90ED
info:eu-repo/semantics/altIdentifier/doi/10.1017/S0025315402005453
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 Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
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 12.982451

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