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dc.contributor.author
Marquez, Federico
dc.contributor.author
Amoroso, Ricardo Oscar
dc.contributor.author
Gowland Sainz, María Florencia
dc.contributor.author
Van Der Molen, Silvina
dc.date.available
2020-01-03T18:25:45Z
dc.date.issued
2010-12
dc.identifier.citation
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
dc.identifier.issn
1864-7782
dc.identifier.uri
http://hdl.handle.net/11336/93445
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Inter-Research
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ALLOMETRY
dc.subject
GEOMETRIC MORPHOMETRICS
dc.subject
ONTOGENY
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SHELL-SHAPE
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TEHUELCHE SCALLOP
dc.subject.classification
Biología
dc.subject.classification
Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Shell morphology changes in the scallop Aequipecten tehuelchus during its life span: A geometric morphometric approach
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-09-20T15:11:18Z
dc.identifier.eissn
1864-7790
dc.journal.volume
11
dc.journal.number
2
dc.journal.pagination
149-155
dc.journal.pais
Alemania
dc.description.fil
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
dc.description.fil
Fil: Amoroso, Ricardo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
dc.description.fil
Fil: Sainz Gowland, María Florencia. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
dc.description.fil
Fil: Van Der Molen, Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Aquatic Biology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.3354/ab00301
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.int-res.com/abstracts/ab/v11/n2/p149-155/
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