Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approach

Autores
Marquez, Federico; Amoroso, Ricardo Oscar; Gowland Sainz, María Florencia; Van Der Molen, Silvina
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Shell morphology is a central feature of bivalve biology in fields such as taxonomy, evolution, and functional anatomy. When allometric shell growth occurs, traditional morphometric methods usually fail to provide robust, size-free shape variables. We used a more integrative approach, geometric morphometrics, to examine ontogenetic changes in the shell of the scallop Aequipecten tehuelchus. A single cohort that settled early in 2004 at a site in San José Gulf in northern Patagonia, Argentina, was sampled at irregular intervals over 5 yr. Different developmental stages had significant differences in shell shape. There was significant ontogenetic allometry, mainly reflected in the shape of the shell disc and the symmetry of the auricles. The most noticeable morphological changes in shell shape and size took place within the first 2 yr of life. Three different shell ecophenotypes were discriminated: spat, juveniles, and adults. Spat had a relatively large anterior auricle and a circular disc; auricles in juveniles were more symmetrical and the shell disc more elongated; and during the adult stage the auricles were small and asymmetrical and the disc elliptical. These 3 phenotypes may reflect changes in the scallop's life habits, as individuals develop from attached spat to actively swimming juveniles to more sedentary adults.
Fil: Marquez, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Universidad Nacional de Córdoba; Argentina
Fil: Amoroso, Ricardo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Sainz Gowland, María Florencia. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Van Der Molen, Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
ALLOMETRY
GEOMETRIC MORPHOMETRICS
ONTOGENY
SHELL-SHAPE
TEHUELCHE SCALLOP
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:11336/93445
Acceder
id CONICETDig_90e47f8930e42d568d7f412b9e7e349c
oai_identifier_str oai:ri.conicet.gov.ar:11336/93445
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approachMarquez, FedericoAmoroso, Ricardo OscarGowland Sainz, María FlorenciaVan Der Molen, SilvinaALLOMETRYGEOMETRIC MORPHOMETRICSONTOGENYSHELL-SHAPETEHUELCHE SCALLOPhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Shell morphology is a central feature of bivalve biology in fields such as taxonomy, evolution, and functional anatomy. When allometric shell growth occurs, traditional morphometric methods usually fail to provide robust, size-free shape variables. We used a more integrative approach, geometric morphometrics, to examine ontogenetic changes in the shell of the scallop Aequipecten tehuelchus. A single cohort that settled early in 2004 at a site in San José Gulf in northern Patagonia, Argentina, was sampled at irregular intervals over 5 yr. Different developmental stages had significant differences in shell shape. There was significant ontogenetic allometry, mainly reflected in the shape of the shell disc and the symmetry of the auricles. The most noticeable morphological changes in shell shape and size took place within the first 2 yr of life. Three different shell ecophenotypes were discriminated: spat, juveniles, and adults. Spat had a relatively large anterior auricle and a circular disc; auricles in juveniles were more symmetrical and the shell disc more elongated; and during the adult stage the auricles were small and asymmetrical and the disc elliptical. These 3 phenotypes may reflect changes in the scallop's life habits, as individuals develop from attached spat to actively swimming juveniles to more sedentary adults.Fil: Marquez, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Universidad Nacional de Córdoba; ArgentinaFil: Amoroso, Ricardo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaFil: Sainz Gowland, María Florencia. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaFil: Van Der Molen, Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaInter-Research2010-12info: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/11336/93445Marquez, Federico; Amoroso, Ricardo Oscar; Gowland Sainz, María Florencia; Van Der Molen, Silvina; Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approach; Inter-Research; Aquatic Biology; 11; 2; 12-2010; 149-1551864-77821864-7790CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3354/ab00301info:eu-repo/semantics/altIdentifier/url/http://www.int-res.com/abstracts/ab/v11/n2/p149-155/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:03:04Zoai:ri.conicet.gov.ar:11336/93445instacron: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 10:03:05.423CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approach
title Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approach
spellingShingle Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approach
Marquez, Federico
ALLOMETRY
GEOMETRIC MORPHOMETRICS
ONTOGENY
SHELL-SHAPE
TEHUELCHE SCALLOP
title_short Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approach
title_full Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approach
title_fullStr Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approach
title_full_unstemmed Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approach
title_sort Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approach
dc.creator.none.fl_str_mv Marquez, Federico
Amoroso, Ricardo Oscar
Gowland Sainz, María Florencia
Van Der Molen, Silvina
author Marquez, Federico
author_facet Marquez, Federico
Amoroso, Ricardo Oscar
Gowland Sainz, María Florencia
Van Der Molen, Silvina
author_role author
author2 Amoroso, Ricardo Oscar
Gowland Sainz, María Florencia
Van Der Molen, Silvina
author2_role author
author
author
dc.subject.none.fl_str_mv ALLOMETRY
GEOMETRIC MORPHOMETRICS
ONTOGENY
SHELL-SHAPE
TEHUELCHE SCALLOP
topic ALLOMETRY
GEOMETRIC MORPHOMETRICS
ONTOGENY
SHELL-SHAPE
TEHUELCHE SCALLOP
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Shell morphology is a central feature of bivalve biology in fields such as taxonomy, evolution, and functional anatomy. When allometric shell growth occurs, traditional morphometric methods usually fail to provide robust, size-free shape variables. We used a more integrative approach, geometric morphometrics, to examine ontogenetic changes in the shell of the scallop Aequipecten tehuelchus. A single cohort that settled early in 2004 at a site in San José Gulf in northern Patagonia, Argentina, was sampled at irregular intervals over 5 yr. Different developmental stages had significant differences in shell shape. There was significant ontogenetic allometry, mainly reflected in the shape of the shell disc and the symmetry of the auricles. The most noticeable morphological changes in shell shape and size took place within the first 2 yr of life. Three different shell ecophenotypes were discriminated: spat, juveniles, and adults. Spat had a relatively large anterior auricle and a circular disc; auricles in juveniles were more symmetrical and the shell disc more elongated; and during the adult stage the auricles were small and asymmetrical and the disc elliptical. These 3 phenotypes may reflect changes in the scallop's life habits, as individuals develop from attached spat to actively swimming juveniles to more sedentary adults.
Fil: Marquez, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina. Universidad Nacional de Córdoba; Argentina
Fil: Amoroso, Ricardo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Sainz Gowland, María Florencia. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Van Der Molen, Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Shell morphology is a central feature of bivalve biology in fields such as taxonomy, evolution, and functional anatomy. When allometric shell growth occurs, traditional morphometric methods usually fail to provide robust, size-free shape variables. We used a more integrative approach, geometric morphometrics, to examine ontogenetic changes in the shell of the scallop Aequipecten tehuelchus. A single cohort that settled early in 2004 at a site in San José Gulf in northern Patagonia, Argentina, was sampled at irregular intervals over 5 yr. Different developmental stages had significant differences in shell shape. There was significant ontogenetic allometry, mainly reflected in the shape of the shell disc and the symmetry of the auricles. The most noticeable morphological changes in shell shape and size took place within the first 2 yr of life. Three different shell ecophenotypes were discriminated: spat, juveniles, and adults. Spat had a relatively large anterior auricle and a circular disc; auricles in juveniles were more symmetrical and the shell disc more elongated; and during the adult stage the auricles were small and asymmetrical and the disc elliptical. These 3 phenotypes may reflect changes in the scallop's life habits, as individuals develop from attached spat to actively swimming juveniles to more sedentary adults.
publishDate 2010
dc.date.none.fl_str_mv 2010-12
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/11336/93445
Marquez, Federico; Amoroso, Ricardo Oscar; Gowland Sainz, María Florencia; Van Der Molen, Silvina; Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approach; Inter-Research; Aquatic Biology; 11; 2; 12-2010; 149-155
1864-7782
1864-7790
CONICET Digital
CONICET
url http://hdl.handle.net/11336/93445
identifier_str_mv Marquez, Federico; Amoroso, Ricardo Oscar; Gowland Sainz, María Florencia; Van Der Molen, Silvina; Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approach; Inter-Research; Aquatic Biology; 11; 2; 12-2010; 149-155
1864-7782
1864-7790
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3354/ab00301
info:eu-repo/semantics/altIdentifier/url/http://www.int-res.com/abstracts/ab/v11/n2/p149-155/
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 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
_version_ 1842269782085206016
score 13.13397

Publicaciones similares