Capacidad de natación en <i>Gymnogeophagus meridionalis</i> (Pisces, cichlidae)

Autores
González Naya, M. J.; Gómez, Sergio Enrique; Ramírez, L.
Año de publicación
2006
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The cichlidae are recognized as maneauver specialists characterized by low crusing speeds and some acceleration capacity. In this work the swimming capacity of Gymnogeophagus meridionalis and the relation it has with some morphometric variables were experimentally evaluated under laboratory conditions and compared with others cichlid species. Using a flow chamber where the water flowed at a constant velocity of 6.8 cm.s-1, fatigue times (TA) between 84 and 853 min were obtained for 10 specimens between 22.9 and 70.0 mm of standard length (Lst). The maximum swimming speed was estimated in 5.5 Lst.s-1 and the cruising speed was approximately 2.0 Lst.s-1. Comparatively, G. meridionalis’ average fatigue time (376.1 min) was longer than that mentioned for C. facetum (169.1 min) and shorter than preliminary data of Crenicichla sp. These differences are related to the corporal morphology. Whereas Crenicichla sp. presented the most elongated body shape with an average body height as a percent of Lst (AC%) about 22%; inside the orbicular cichlids group, G. meridionalis and C. facetum presented AC% of 43.2 y 47.5% respectively. The differences in swimming capacity between Gymnogeophagus meridionalis and C. facetum, both maneuver specialists, could be owed to a smaller body height and a narrow caudal peduncle.
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Instituto de Limnología "Dr. Raul A. Ringuelet" (ILPLA)
Materia
Ciencias Naturales
swimming speed, maneuver specialist, corporal morphology
Peces
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/69482

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spelling Capacidad de natación en <i>Gymnogeophagus meridionalis</i> (Pisces, cichlidae)González Naya, M. J.Gómez, Sergio EnriqueRamírez, L.Ciencias Naturalesswimming speed, maneuver specialist, corporal morphologyPecesThe cichlidae are recognized as maneauver specialists characterized by low crusing speeds and some acceleration capacity. In this work the swimming capacity of Gymnogeophagus meridionalis and the relation it has with some morphometric variables were experimentally evaluated under laboratory conditions and compared with others cichlid species. Using a flow chamber where the water flowed at a constant velocity of 6.8 cm.s-1, fatigue times (TA) between 84 and 853 min were obtained for 10 specimens between 22.9 and 70.0 mm of standard length (Lst). The maximum swimming speed was estimated in 5.5 Lst.s-1 and the cruising speed was approximately 2.0 Lst.s-1. Comparatively, G. meridionalis’ average fatigue time (376.1 min) was longer than that mentioned for C. facetum (169.1 min) and shorter than preliminary data of Crenicichla sp. These differences are related to the corporal morphology. Whereas Crenicichla sp. presented the most elongated body shape with an average body height as a percent of Lst (AC%) about 22%; inside the orbicular cichlids group, G. meridionalis and C. facetum presented AC% of 43.2 y 47.5% respectively. The differences in swimming capacity between Gymnogeophagus meridionalis and C. facetum, both maneuver specialists, could be owed to a smaller body height and a narrow caudal peduncle.Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Instituto de Limnología "Dr. Raul A. Ringuelet" (ILPLA)2006-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf163-167http://sedici.unlp.edu.ar/handle/10915/69482spainfo:eu-repo/semantics/altIdentifier/issn/0326-1638info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:10:56Zoai:sedici.unlp.edu.ar:10915/69482Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:10:56.45SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Capacidad de natación en <i>Gymnogeophagus meridionalis</i> (Pisces, cichlidae)
title Capacidad de natación en <i>Gymnogeophagus meridionalis</i> (Pisces, cichlidae)
spellingShingle Capacidad de natación en <i>Gymnogeophagus meridionalis</i> (Pisces, cichlidae)
González Naya, M. J.
Ciencias Naturales
swimming speed, maneuver specialist, corporal morphology
Peces
title_short Capacidad de natación en <i>Gymnogeophagus meridionalis</i> (Pisces, cichlidae)
title_full Capacidad de natación en <i>Gymnogeophagus meridionalis</i> (Pisces, cichlidae)
title_fullStr Capacidad de natación en <i>Gymnogeophagus meridionalis</i> (Pisces, cichlidae)
title_full_unstemmed Capacidad de natación en <i>Gymnogeophagus meridionalis</i> (Pisces, cichlidae)
title_sort Capacidad de natación en <i>Gymnogeophagus meridionalis</i> (Pisces, cichlidae)
dc.creator.none.fl_str_mv González Naya, M. J.
Gómez, Sergio Enrique
Ramírez, L.
author González Naya, M. J.
author_facet González Naya, M. J.
Gómez, Sergio Enrique
Ramírez, L.
author_role author
author2 Gómez, Sergio Enrique
Ramírez, L.
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Naturales
swimming speed, maneuver specialist, corporal morphology
Peces
topic Ciencias Naturales
swimming speed, maneuver specialist, corporal morphology
Peces
dc.description.none.fl_txt_mv The cichlidae are recognized as maneauver specialists characterized by low crusing speeds and some acceleration capacity. In this work the swimming capacity of Gymnogeophagus meridionalis and the relation it has with some morphometric variables were experimentally evaluated under laboratory conditions and compared with others cichlid species. Using a flow chamber where the water flowed at a constant velocity of 6.8 cm.s-1, fatigue times (TA) between 84 and 853 min were obtained for 10 specimens between 22.9 and 70.0 mm of standard length (Lst). The maximum swimming speed was estimated in 5.5 Lst.s-1 and the cruising speed was approximately 2.0 Lst.s-1. Comparatively, G. meridionalis’ average fatigue time (376.1 min) was longer than that mentioned for C. facetum (169.1 min) and shorter than preliminary data of Crenicichla sp. These differences are related to the corporal morphology. Whereas Crenicichla sp. presented the most elongated body shape with an average body height as a percent of Lst (AC%) about 22%; inside the orbicular cichlids group, G. meridionalis and C. facetum presented AC% of 43.2 y 47.5% respectively. The differences in swimming capacity between Gymnogeophagus meridionalis and C. facetum, both maneuver specialists, could be owed to a smaller body height and a narrow caudal peduncle.
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Instituto de Limnología "Dr. Raul A. Ringuelet" (ILPLA)
description The cichlidae are recognized as maneauver specialists characterized by low crusing speeds and some acceleration capacity. In this work the swimming capacity of Gymnogeophagus meridionalis and the relation it has with some morphometric variables were experimentally evaluated under laboratory conditions and compared with others cichlid species. Using a flow chamber where the water flowed at a constant velocity of 6.8 cm.s-1, fatigue times (TA) between 84 and 853 min were obtained for 10 specimens between 22.9 and 70.0 mm of standard length (Lst). The maximum swimming speed was estimated in 5.5 Lst.s-1 and the cruising speed was approximately 2.0 Lst.s-1. Comparatively, G. meridionalis’ average fatigue time (376.1 min) was longer than that mentioned for C. facetum (169.1 min) and shorter than preliminary data of Crenicichla sp. These differences are related to the corporal morphology. Whereas Crenicichla sp. presented the most elongated body shape with an average body height as a percent of Lst (AC%) about 22%; inside the orbicular cichlids group, G. meridionalis and C. facetum presented AC% of 43.2 y 47.5% respectively. The differences in swimming capacity between Gymnogeophagus meridionalis and C. facetum, both maneuver specialists, could be owed to a smaller body height and a narrow caudal peduncle.
publishDate 2006
dc.date.none.fl_str_mv 2006-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/69482
url http://sedici.unlp.edu.ar/handle/10915/69482
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0326-1638
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.format.none.fl_str_mv application/pdf
163-167
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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