Saber UCV
Repositorio Institucional
Repositorio Institucional
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https://saber.ucv.ve/handle/10872/17968
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| Title: | Geographic adn environmental variation in Bryconops so. cf. melanurus (Ostariophysi:Characidae) from de brasilian Pantanal |
| Authors: | Sidlauskas, Brian Chernoff, Barry Machado-Allison, Antonio |
| Keywords: | Ecomorphology, morphometrics, fish, Pantanal, Brazil |
| Issue Date: | 9-Mar-2018 |
| Series/Report no.: | Ichthyologial Research;53: 24-33 |
| Abstract: | Morphometric analyses of 220 specimens of a characid, Bryconops sp. cf. melanurus, from the Brazilian Pantanal were used to describenezuelaallometric growth in that species and determine whether specimens from highland habitats were more streamlined than those from lowland habitats. Relative warp analysis of 14 landmarks and principal component analysis of 28 interlandmark distances returned complementary results. The increased streamlining of the highland specimens is highly consistent with known inductive effects of high water velocity on fish phenotypes. Genetic differentiation and inductive effects of temperature variation are also potential explanations of the observed phenotypic differentiation. |
| URI: | http://hdl.handle.net/10872/17968 |
| Appears in Collections: | Artículos Publicados |
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