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dc.contributor.authorMoya, Fernando
dc.contributor.authorHernández, Jordan
dc.contributor.authorSuazo, Manuel J
dc.contributor.authorSaucède, Thomas
dc.contributor.authorBrickle, Paul
dc.contributor.authorPoulin, Elie
dc.contributor.authorBenítez, Hugo A.
dc.date.accessioned2024-09-27T14:04:51Z
dc.date.available2024-09-27T14:04:51Z
dc.date.issued2024
dc.identifier.urihttp://repositorio.ucm.cl/handle/ucm/5677
dc.description.abstractAbatus is a genus of irregular brooding sea urchins to the Southern Ocean. Among the 11 described species, three shared morphological traits and present an infaunal lifestyle in the infralittoral from the Subantarctic province; A. cavernosus in Patagonia, A. cordatus in Kerguelen, and A. agassizii in Tierra del Fuego and South Shetlands. The systematic of Abatus, based on morphological characters and incomplete phylogenies, is complex and largely unresolved. This study evaluates the shape variation among these species using geometric morphometrics analysis (GM). For this, 72 individuals from four locations; South Shetlands, Kerguelen, Patagonia, and Falklands/Malvinas were photographed, and 37 landmarks were digitized. To evaluate the shape differences among species, a principal component analysis and a Procrustes ANOVA were performed. Our results showed a marked difference between the Falklands/Malvinas and the other localities, characterized by a narrower and more elongated shape and a significant influence of location in shape but not sex. Additionally, the effect of allometry was evaluated using a permutation test and a regression between shape and size, showing significant shape changes during growth in all groups. The possibility that the Falklands/Malvinas group shows phenotypic plasticity or represents a distinct evolutionary unit is discussed. Finally, GM proved to be a powerful tool to differentiate these species, highlighting its utility in systematic studies.es_CL
dc.language.isoenes_CL
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Chile*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
dc.sourceAnimals, 14(16), 2376es_CL
dc.subjectEchinodermes_CL
dc.subjectInvertebrateses_CL
dc.subjectGeometric morphometricses_CL
dc.subjectShapees_CL
dc.subjectSpatangoidaes_CL
dc.subjectSouthern Oceanes_CL
dc.titleDeciphering the hearts: geometric morphometrics reveals shape variation in Abatus sea urchins across subantarctic and antarctic seases_CL
dc.typeArticlees_CL
dc.ucm.indexacionScopuses_CL
dc.ucm.indexacionIsies_CL
dc.ucm.urimdpi.com/2076-2615/14/16/2376es_CL
dc.ucm.doidoi.org/10.3390/ani14162376es_CL


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Atribución-NoComercial-SinDerivadas 3.0 Chile
Excepto si se señala otra cosa, la licencia de la publicación se describe como Atribución-NoComercial-SinDerivadas 3.0 Chile