Results 1 to 10 of about 1,655 (200)

Cytogenetic characterization of a population of Bryconamericus aff. iheringii (Characidae,Tetragonopterinae) [PDF]

open access: yesGenetics and Molecular Biology, 2003
A cytogenetic analysis of thirteen specimens of Bryconamericus aff. Iheringii revealed a diploid number of 52 chromosomes and a karyotype of 8M+22SM+10ST+12A with a fundamental number (FN) of 92.
Lucia Giuliano-Caetano, Ana Lúcia Dias
exaly   +6 more sources

Bryconamericus macarenae n. sp. (Characiformes, Characidae) from the Güejar River, Macarena mountain range, Colombia [PDF]

open access: yesAnimal Biodiversity and Conservation, 2010
Bryconamericus macarenae sp. n. (Characiformes, Characidae) del río Güejar, sierra de La Macarana, Colombia Basándonos en 174 especímenes y utilizando características morfométricas, merísticas y osteológicas describimos una nueva especie ...
C. Román-Valencia   +3 more
doaj   +6 more sources

Two new Bryconamericus: B. cinarucoense n. sp. and B. singularis n. sp. (Characiformes, Characidae) from the Cinaruco River, Orinoco Basin, with keys to all Venezuelan species [PDF]

open access: yesAnimal Biodiversity and Conservation, 2008
Dos nuevos Bryconamericus: B. cinarucoense sp. n. y B. singularis sp. n. (Characiformes, Characidae) del río Cinaruco, cuenca del Orinoco, con claves para todas las especies de Venezuela Se describen dos especies nuevas de Bryconamericus de la cuenca del
C. Román-Valencia   +2 more
doaj   +4 more sources

Establishing new grid-size-dependent attributes to rank areas of endemism for conservation priorities. [PDF]

open access: yesCladistics
Abstract Delineating Areas of Endemism (AEs) is crucial for identifying priority areas for biodiversity conservation in a spatial planning framework. Endemicity Analysis in the NDM/VNDM software is one of the primary methodologies for its delineation.
Frota A, da Graça WJ.
europepmc   +2 more sources

Linking anatomical and histological traits of the digestive tract to resource consumption and assimilation of omnivorous tetra fishes. [PDF]

open access: yesEcol Evol
This study investigates digestive traits and dietary patterns in omnivorous tetra fishes from the Iguaçu River basin, known for high endemism. The researchers found that while the tetra fishes shared histological structures, anatomical differences in digestive traits correlated with distinct dietary preferences.
Neves MP   +4 more
europepmc   +2 more sources

A new endemic species of Bryconamericus (Characiformes, Characidae) from the Middle Cauca River Basin, Colombia [PDF]

open access: yesAnimal Biodiversity and Conservation, 2014
Una nueva especie endémica de Bryconamericus (Characiformes, Characidae) de la cuenca media del río Cauca, en Colombia Se describe una nueva especie, Bryconamericus caldasi, en la cuenca media del río Cauca en los Andes de Colombia.
C. Román–Valencia   +3 more
doaj   +5 more sources

Phylogeographic Diversity of the Lower Central American Cichlid Andinoacara coeruleopunctatus (Cichlidae). [PDF]

open access: yesInt J Evol Biol, 2012
It is well appreciated that historical and ecological processes are important determinates of freshwater biogeographic assemblages. Phylogeography can potentially lend important insights into the relative contribution of historical processes in biogeography. However, the extent that phylogeography reflects historical patterns of drainage connection may
McCafferty SS, Martin A, Bermingham E.
europepmc   +2 more sources

A new species of Bryconamericus (Characidae: Stevardiinae: Diapomini) from the upper rio Paraná basin, Brazil

open access: yesNeotropical Ichthyology, 2017
Bryconamericus is the most diverse genus within Stevardiinae, comprising 61 valid species distributed in Cis- and Trans-Andean basins from Panama in Central America to northern Argentina in South America. Three species are known from the upper rio Paraná
Oscar A Shibatta, Fernando C Jerep
exaly   +3 more sources

Development and characterization of fifteen polymorphic microsatellite loci in Bryconamericus aff. iheringii (Teleostei: Characidae) and cross-amplification in related Characidae species

open access: yesNeotropical Ichthyology, 2018
Data on 15 novel microsatellite loci from the Neotropical fish Bryconamericus aff. iheringii are presented here. Analyses of 32 individuals from four different streams revealed 192 different alleles, ranging from four to 32 alleles per locus (mean of 12 ...
Mariana Costa Terra   +2 more
exaly   +3 more sources

Reproductive biology of Bryconamericus stramineus Eigenmann, 1908 (Ostariophysi: Characidae) from the Rio Ibicuí, RS, Brazil

open access: yesBrazilian Archives of Biology and Technology, 2007
Reproduction of Bryconamericus stramineus was described based on the analysis of 208 females and 166 males collected monthly in the Rio Ibicuí, from April 2001 through March 2002. Reproduction occurred between September and December, with a lower peak in
Clarice Bernhardt Fialho
exaly   +3 more sources

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