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

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 conditio...

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Detalles Bibliográficos
Autores principales:	González Naya, M. J., Gómez, Sergio Enrique, Ramírez, L.
Formato:	Articulo
Lenguaje:	Español
Publicado:	2006
Materias:	Ciencias Naturales swimming speed, maneuver specialist, corporal morphology Peces
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/69482
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-69482
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Español
topic	Ciencias Naturales swimming speed, maneuver specialist, corporal morphology Peces
spellingShingle	Ciencias Naturales swimming speed, maneuver specialist, corporal morphology Peces González Naya, M. J. Gómez, Sergio Enrique Ramírez, L. Capacidad de natación en <i>Gymnogeophagus meridionalis</i> (Pisces, cichlidae)
topic_facet	Ciencias Naturales swimming speed, maneuver specialist, corporal morphology Peces
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.
format	Articulo Articulo
author	González Naya, M. J. Gómez, Sergio Enrique Ramírez, L.
author_facet	González Naya, M. J. Gómez, Sergio Enrique Ramírez, L.
author_sort	González Naya, M. J.
title	Capacidad de natación en <i>Gymnogeophagus meridionalis</i> (Pisces, cichlidae)
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)
publishDate	2006
url	http://sedici.unlp.edu.ar/handle/10915/69482
work_keys_str_mv	AT gonzaleznayamj capacidaddenatacionenigymnogeophagusmeridionalisipiscescichlidae AT gomezsergioenrique capacidaddenatacionenigymnogeophagusmeridionalisipiscescichlidae AT ramirezl capacidaddenatacionenigymnogeophagusmeridionalisipiscescichlidae
bdutipo_str	Repositorios
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Capacidad de natación en <i>Gymnogeophagus meridionalis</i> (Pisces, cichlidae)

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