Variación morfométrica en octocorales del género Pacifigorgia (Octocorallia: Gorgoniidae)

The taxonomic identification of octocorals is based on morphological characters, known for their high plasticity with the environment. This hinders the delimitation and identification of species, which translates in biases in the estimations of local and regional diversity, population abundance and...

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Autores:: Mejía Quintero, Katherine Johanna

Tipo de recurso:

Fecha de publicación:: 2020

Institución:: Universidad Nacional de Colombia

Repositorio:: Universidad Nacional de Colombia

Idioma:: spa

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dc.title.spa.fl_str_mv	Variación morfométrica en octocorales del género Pacifigorgia (Octocorallia: Gorgoniidae)
title	Variación morfométrica en octocorales del género Pacifigorgia (Octocorallia: Gorgoniidae)
spellingShingle	Variación morfométrica en octocorales del género Pacifigorgia (Octocorallia: Gorgoniidae) 500 - Ciencias naturales y matemáticas Plasticidad fenotípica, Octocorales, Pacifigorgia, variación morfológica, taxonomía, Pacífico Oriental Tropical. Phenotypic plasticity, Octocorals, Pacifigorgia, Morphological variation, taxonomy, Eastern Tropical Pacific
title_short	Variación morfométrica en octocorales del género Pacifigorgia (Octocorallia: Gorgoniidae)
title_full	Variación morfométrica en octocorales del género Pacifigorgia (Octocorallia: Gorgoniidae)
title_fullStr	Variación morfométrica en octocorales del género Pacifigorgia (Octocorallia: Gorgoniidae)
title_full_unstemmed	Variación morfométrica en octocorales del género Pacifigorgia (Octocorallia: Gorgoniidae)
title_sort	Variación morfométrica en octocorales del género Pacifigorgia (Octocorallia: Gorgoniidae)
dc.creator.fl_str_mv	Mejía Quintero, Katherine Johanna
dc.contributor.advisor.spa.fl_str_mv	Guzmam, Héctor Zea, Sven
dc.contributor.author.spa.fl_str_mv	Mejía Quintero, Katherine Johanna
dc.contributor.corporatename.spa.fl_str_mv	Universidad Nacional de Colombia-Sede Caribe-CECIMAR
dc.contributor.researchgroup.spa.fl_str_mv	Fauna Marina Colombiana: Biodiversidad y Usos
dc.subject.ddc.spa.fl_str_mv	500 - Ciencias naturales y matemáticas
topic	500 - Ciencias naturales y matemáticas Plasticidad fenotípica, Octocorales, Pacifigorgia, variación morfológica, taxonomía, Pacífico Oriental Tropical. Phenotypic plasticity, Octocorals, Pacifigorgia, Morphological variation, taxonomy, Eastern Tropical Pacific
dc.subject.proposal.spa.fl_str_mv	Plasticidad fenotípica, Octocorales, Pacifigorgia, variación morfológica, taxonomía, Pacífico Oriental Tropical.
dc.subject.proposal.eng.fl_str_mv	Phenotypic plasticity, Octocorals, Pacifigorgia, Morphological variation, taxonomy, Eastern Tropical Pacific
description	The taxonomic identification of octocorals is based on morphological characters, known for their high plasticity with the environment. This hinders the delimitation and identification of species, which translates in biases in the estimations of local and regional diversity, population abundance and physiological tolerance, among others. In order to recognize and quantify the effect of depth in some morphological characters of the genus Pacifigorgia, two taxonomically well-defined species, P. bayeri and P. cairnsi, were employed, comparing colonies from shallow (3-5 m) and deep (18-20 m) zones in the Gulf of Chiriquí, Panamanian Pacific. The external characters were evaluated from scaled images of the colonies, and the internal ones on confocal microscopy images of four types of sclerites. Following a nested mixed model in PERMANOVA and PERANOVA test, it was found that, externally, both species had a significant variation in the number of calices/cm with depth, although in a different direction, higher in the shallow zone for P. cairnsi and higher in the deep zone for P. bayeri. In addition, P. cairnsi had the widest mesh diameter in the deep zone. Internally, only P. cairnsi varied significantly with the depth in the length of almost all sclerites. Both species, although do not converge in their morphological response with depth, they show a highly significant variation between colonies of the same depth. Finally, some of these taxonomic characters, although plastic, did not generate visually perceptible variations that could have an impact on the taxonomic recognition of the species.
publishDate	2020
dc.date.accessioned.spa.fl_str_mv	2020-10-31T15:31:35Z
dc.date.available.spa.fl_str_mv	2020-10-31T15:31:35Z
dc.date.issued.spa.fl_str_mv	2020-10-30
dc.type.spa.fl_str_mv	Trabajo de grado - Maestría
dc.type.driver.spa.fl_str_mv	info:eu-repo/semantics/masterThesis
dc.type.version.spa.fl_str_mv	info:eu-repo/semantics/acceptedVersion
dc.type.content.spa.fl_str_mv	Text
dc.type.redcol.spa.fl_str_mv	http://purl.org/redcol/resource_type/TM
status_str	acceptedVersion
dc.identifier.citation.spa.fl_str_mv	Mejía-Quintero K. 2020. Variación morfométrica en octocorales del género Pacifigorgia (OCTOCORALLIA: GORGONIIDAE) (Tesis de maestria). Universidad Nacional de Colombia. Santa Marta, 49 p.
dc.identifier.uri.none.fl_str_mv	https://repositorio.unal.edu.co/handle/unal/78579
identifier_str_mv	Mejía-Quintero K. 2020. Variación morfométrica en octocorales del género Pacifigorgia (OCTOCORALLIA: GORGONIIDAE) (Tesis de maestria). Universidad Nacional de Colombia. Santa Marta, 49 p.
url	https://repositorio.unal.edu.co/handle/unal/78579
dc.language.iso.spa.fl_str_mv	spa
language	spa
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dc.format.extent.spa.fl_str_mv	49
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dc.publisher.department.spa.fl_str_mv	Centro de estudios en Ciencias del mar-CECIMAR
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spelling	Atribución-NoComercial-SinDerivadas 4.0 InternacionalDerechos reservados - Universidad Nacional de ColombiaAcceso abiertohttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Guzmam, Héctor85dae914-9b95-4501-be48-9947c1c064ccZea, Sven3da4426d-78c5-4d5b-831b-522f10ace882Mejía Quintero, Katherine Johanna4b1a1393-b85f-40fe-bf88-9d7192d64189Universidad Nacional de Colombia-Sede Caribe-CECIMARFauna Marina Colombiana: Biodiversidad y Usos2020-10-31T15:31:35Z2020-10-31T15:31:35Z2020-10-30Mejía-Quintero K. 2020. Variación morfométrica en octocorales del género Pacifigorgia (OCTOCORALLIA: GORGONIIDAE) (Tesis de maestria). Universidad Nacional de Colombia. Santa Marta, 49 p.https://repositorio.unal.edu.co/handle/unal/78579The taxonomic identification of octocorals is based on morphological characters, known for their high plasticity with the environment. This hinders the delimitation and identification of species, which translates in biases in the estimations of local and regional diversity, population abundance and physiological tolerance, among others. In order to recognize and quantify the effect of depth in some morphological characters of the genus Pacifigorgia, two taxonomically well-defined species, P. bayeri and P. cairnsi, were employed, comparing colonies from shallow (3-5 m) and deep (18-20 m) zones in the Gulf of Chiriquí, Panamanian Pacific. The external characters were evaluated from scaled images of the colonies, and the internal ones on confocal microscopy images of four types of sclerites. Following a nested mixed model in PERMANOVA and PERANOVA test, it was found that, externally, both species had a significant variation in the number of calices/cm with depth, although in a different direction, higher in the shallow zone for P. cairnsi and higher in the deep zone for P. bayeri. In addition, P. cairnsi had the widest mesh diameter in the deep zone. Internally, only P. cairnsi varied significantly with the depth in the length of almost all sclerites. Both species, although do not converge in their morphological response with depth, they show a highly significant variation between colonies of the same depth. Finally, some of these taxonomic characters, although plastic, did not generate visually perceptible variations that could have an impact on the taxonomic recognition of the species.La identificación taxonómica de los octocorales está basada en caracteres morfológicos que son ampliamente reconocidos por su alta plasticidad con el ambiente. Esto dificulta la delimitación e identificación de las especies, ocasionando sesgos en las estimaciones de diversidad local o regional, de abundancia poblacional y de tolerancia fisiológica, entre otras. Con el fin de reconocer y cuantificar el efecto de la profundidad en algunos caracteres morfológicos del género Pacifigorgia, se emplearon dos especies bien definidas taxonómicamente, P. bayeri y P. cairnsi, comparando colonias entre una zona somera (3-5 m) y una profunda (18-20 m) en el Golfo de Chiriquí, Pacífico panameño. Se evaluaron caracteres estándar externos, medidos sobre las colonias, e internos, medidos en cuatro tipos de escleritas. Para las medidas morfométricas se emplearon imágenes a escala de las colonias, e imágenes de las escleritas en microscopía confocal. Mediante análisis de PERMANOVA y PERANOVA y siguiendo un modelo mixto anidado, se encontró que, externamente, ambas especies variaron significativamente en el número de cálices/cm con la profundidad, aunque en diferente dirección, mayor en la zona somera para P. cairnsi y mayor en la zona profunda para P. bayeri. Adicionalmente, un mayor diámetro de malla fue encontrado en las colonias de la zona profunda de P. cairnsi. Internamente, sólo P. cairnsi varió significativamente con la profundidad en la longitud de casi todas las escleritas. Ambas especies, aunque no convergen en la respuesta morfológica en el gradiente de profundidad, sí presentaron variaciones altamente significativas entre las colonias de la misma profundidad, para todas las variables. Finalmente, algunos de estos caracteres taxonómicos, aunque plásticos, no generaron variaciones visualmente perceptibles que pudieran tener un impacto en el reconocimiento taxonómico de las especies (Texto tomado de la fuente)Smithsonian Tropical Research Institute, Colciencias, Universidad Nacional de Colombia.Plasticidad fenotípica en abanicos de mar del género Pacifigorgia (OCTOCORALLIA: GORGONIIDAE)Maestría49application/pdfspa500 - Ciencias naturales y matemáticasPlasticidad fenotípica, Octocorales, Pacifigorgia, variación morfológica, taxonomía, Pacífico Oriental Tropical.Phenotypic plasticity, Octocorals, Pacifigorgia, Morphological variation, taxonomy, Eastern Tropical PacificVariación morfométrica en octocorales del género Pacifigorgia (Octocorallia: Gorgoniidae)Trabajo de grado - Maestríainfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/acceptedVersionTexthttp://purl.org/redcol/resource_type/TMCaribe - Caribe - Maestría en Ciencias - BiologíaCentro de estudios en Ciencias del mar-CECIMARFacultad CaribeUniversidad Nacional de Colombia - Sede CaribeAbeytia R, Guzman HM, Breedy O. 2013. 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Colombia: Editorial Catálogo Científico. 285 p.ORIGINAL1128275419.2020.pdf1128275419.2020.pdfapplication/pdf1520572https://repositorio.unal.edu.co/bitstream/unal/78579/1/1128275419.2020.pdf5ae6db139f007fe39c58ed73a9edbcceMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-83895https://repositorio.unal.edu.co/bitstream/unal/78579/2/license.txte2f63a891b6ceb28c3078128251851bfMD52CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8811https://repositorio.unal.edu.co/bitstream/unal/78579/3/license_rdf217700a34da79ed616c2feb68d4c5e06MD53THUMBNAIL1128275419.2020.pdf.jpg1128275419.2020.pdf.jpgGenerated Thumbnailimage/jpeg3963https://repositorio.unal.edu.co/bitstream/unal/78579/4/1128275419.2020.pdf.jpgef5dc91ba49075c7f66231581e2b1144MD54unal/78579oai:repositorio.unal.edu.co:unal/785792024-02-27 16:43:12.823Repositorio Institucional Universidad Nacional de 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GVyZWNob3MgZGUgYXV0b3IgcXVlIGNvbmxsZXZlIGxhIGRpc3RyaWJ1Y2nDs24gZGUgZXN0b3MgYXJjaGl2b3MgeSBtZXRhZGF0b3MuCkFsIGhhY2VyIGNsaWMgZW4gZWwgc2lndWllbnRlIGJvdMOzbiwgdXN0ZWQgaW5kaWNhIHF1ZSBlc3TDoSBkZSBhY3VlcmRvIGNvbiBlc3RvcyB0w6lybWlub3MuCg==

Variación morfométrica en octocorales del género Pacifigorgia (Octocorallia: Gorgoniidae)

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