Geographic variation of Moenkhausia bonita (Characiformes: Characidae) in the rio de la Plata basin, with distributional comments on M. intermedia

Moenkhausia bonita occurs in numerous additional localities from the Bermejo, Paraná, Paraguay, and Uruguay river basins. Given that this finding greatly expands the distributional range of M. bonita, we carried out an intraspecific comparison, using multivariate methods for 18 morphometric and eigh...

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Autores principales: Vanegas Ríos, James Anyelo, Britzke, Ricardo, Mirande, Juan Marcos
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Zoología
Allometry
Argentina
Moenkhausia
Morphological variation
Widespread species
Alometría
Variación morfológica
Especie ampliamente distribuida
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/122324
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-122324
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Zoología
Allometry
Argentina
Moenkhausia
Morphological variation
Widespread species
Alometría
Moenkhausia
Variación morfológica
Especie ampliamente distribuida
spellingShingle Zoología
Allometry
Argentina
Moenkhausia
Morphological variation
Widespread species
Alometría
Moenkhausia
Variación morfológica
Especie ampliamente distribuida
Vanegas Ríos, James Anyelo
Britzke, Ricardo
Mirande, Juan Marcos
Geographic variation of Moenkhausia bonita (Characiformes: Characidae) in the rio de la Plata basin, with distributional comments on M. intermedia
topic_facet Zoología
Allometry
Argentina
Moenkhausia
Morphological variation
Widespread species
Alometría
Moenkhausia
Variación morfológica
Especie ampliamente distribuida
description Moenkhausia bonita occurs in numerous additional localities from the Bermejo, Paraná, Paraguay, and Uruguay river basins. Given that this finding greatly expands the distributional range of M. bonita, we carried out an intraspecific comparison, using multivariate methods for 18 morphometric and eight meristic characters taken from a comprehensive sample of 536 specimens. All localities were distributed in four major geographic groups as follows: Bermejo, Paraná, Paraguay, and Uruguay. Results of the morphometric comparisons showed significant differences among the studied groups except between the Paraguay and Uruguay groups. Statistical differences in meristic values were found for most between-group comparisons, especially in those resulting from discriminant canonical analyses (DCA). Specimens from the Bermejo basin were the most distinct group in most morphological comparisons. However, the overall subtle differences found in body morphology likely reflect intraspecific variation within M. bonita and seem to be mainly influenced by spatial and environmental features of drainages. As M. bonita was previously identified as M. intermedia in the río de La Plata basin, distributional comments on the latter species in that basin are provided.
format Articulo
Articulo
author Vanegas Ríos, James Anyelo
Britzke, Ricardo
Mirande, Juan Marcos
author_facet Vanegas Ríos, James Anyelo
Britzke, Ricardo
Mirande, Juan Marcos
author_sort Vanegas Ríos, James Anyelo
title Geographic variation of Moenkhausia bonita (Characiformes: Characidae) in the rio de la Plata basin, with distributional comments on M. intermedia
title_short Geographic variation of Moenkhausia bonita (Characiformes: Characidae) in the rio de la Plata basin, with distributional comments on M. intermedia
title_full Geographic variation of Moenkhausia bonita (Characiformes: Characidae) in the rio de la Plata basin, with distributional comments on M. intermedia
title_fullStr Geographic variation of Moenkhausia bonita (Characiformes: Characidae) in the rio de la Plata basin, with distributional comments on M. intermedia
title_full_unstemmed Geographic variation of Moenkhausia bonita (Characiformes: Characidae) in the rio de la Plata basin, with distributional comments on M. intermedia
title_sort geographic variation of moenkhausia bonita (characiformes: characidae) in the rio de la plata basin, with distributional comments on m. intermedia
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/122324
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