2015
DOI: 10.1590/1982-0224-20140137
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Abstract: A compared study of the morphology of the alimentary tract and liver of seven selected species corresponding to the main clades of the Characidae family is presented herein. Three new set of characters corresponding to 1) alimentary tract gross anatomy, 2) alimentary tract histology and 3) liver gross anatomy are evaluated as potential sources of data for future phylogenetic studies of the Characidae. Not considerable interspecific variation was observed at the histological level and therefore this source is n… Show more

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Cited by 11 publications
(11 citation statements)
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“…The present study showed that the exocrine cells are tall and columnar have a dark cytoplasm, distinct nuclei, and many zymogen granules that deposited heavily in the cells (Pl.8A). These observations agreed with Sinha (1986), Petcoff et al (2006), Faccioli et al (2014), Nazlić et al (2014), Ebrahimi (2015) and Alonso et al (2015).…”
Section: Histological Description Liversupporting
confidence: 89%
“…The present study showed that the exocrine cells are tall and columnar have a dark cytoplasm, distinct nuclei, and many zymogen granules that deposited heavily in the cells (Pl.8A). These observations agreed with Sinha (1986), Petcoff et al (2006), Faccioli et al (2014), Nazlić et al (2014), Ebrahimi (2015) and Alonso et al (2015).…”
Section: Histological Description Liversupporting
confidence: 89%
“…Numerous studies have also shown that characiforms exhibit an inverse relationship between trophic level and intestine length with herbivorous-detritivorous species having longer intestinal tracts than either omnivorous or carnivorous species (Arawomo 1976;Kramer and Bryant 1995;Mello et al 2006). This inverse relationship occurs at phylogenetic scales in characiform fishes, with herbivorous-detritivorous clades consistently evolving a longer intestinal tract than omnivorous or carnivorous sister lineages (Guisande et al 2012;Alonso et al 2015). Furthermore, an analysis of gastrointestinal tract morphology in characiforms found that the shape and size of the intestinal tract were restricted by body shape, with more elongated and cylindrical forms reducing the size of the gastrointestinal tract (Alonso et al 2015).…”
mentioning
confidence: 99%
“…This inverse relationship occurs at phylogenetic scales in characiform fishes, with herbivorous-detritivorous clades consistently evolving a longer intestinal tract than omnivorous or carnivorous sister lineages (Guisande et al 2012;Alonso et al 2015). Furthermore, an analysis of gastrointestinal tract morphology in characiforms found that the shape and size of the intestinal tract were restricted by body shape, with more elongated and cylindrical forms reducing the size of the gastrointestinal tract (Alonso et al 2015). These results suggest that natural selection for a larger intestinal tract in herbivorous-detritivorous species may also influence the evolution of the abdominal cavity.…”
mentioning
confidence: 99%
“…C. borellii fue originalmente descripto como Nanognathus borellii Boulenger 1895 y ubicada posteriormente dentro de Characidium por Eigenmann (1910). Esta última especie está señalada como endémica para nuestro país, sin embargo, no existen registros de ella, posteriores a su descripción, excepto la reciente mención de Alonso et al (2015) en un estudio sobre anatomía del tubo digestivo de carácidos. El reducido número de antecedentes denota un pobre conocimiento de los crenúchidos de la Argentina; sumado al hecho que Characidium cuenta con numerosas especies poco conocidas o aún por describir (Buckup, 1993 b ), justifican la revisión de este grupo para nuestro país.…”
Section: I In Nt Tr Ro Od Du Uc Cc Ci Ió óN Nunclassified
“…También la caracteriza como una especie de hábitos diurnos, que acecha a sus presas y que consume particularmente larvas y adultos de insectos acuáticos. En cuanto a la reproducción, esta autora señala a las raíces de plantas flotantes como el lugar donde se desarrollan los huevos fertilizados.Characidium borellii es una especie sobre la cual no se tienen registros desde su descripción hasta la actualidad, excepto por una reciente mención en un trabajo sobre anatomía del sistema digestivo(Alonso et al, 2015). En su descripción original, Boulenger (1885) señala como la localidad tipo a San Pablo, provincia de Tucumán(Argentina).…”
unclassified