Results 1 to 10 of about 1,632 (166)

Comparative cytogenetics among populations of Astyanax altiparanae (Characiformes, Characidae, Incertae sedis) [PDF]

open access: yesGenetics and Molecular Biology, 2009
Cytogenetic data are presented for Astyanax altiparanae populations from three Brazilian hydrographic systems. The chromosomal data obtained in A. altiparanae support the hypothesis of diploid number conservation.
Maressa Ferreira Neto   +4 more
doaj   +7 more sources

Cytogenetic and comparative morphology of two allopatric populations of Astyanax altiparanae Garutti & Britski, 2000 (Teleostei: Characidae) from upper rio Paraná basin [PDF]

open access: yesNeotropical Ichthyology, 2007
The recently described fish species, Astyanax altiparanae (tetra) is common in the upper rio Paraná basin, and has been reported in the Iguaçu basin. However, its natural origin in the rio Iguaçu is questionable.
Manoela de S. Domingues   +7 more
doaj   +3 more sources

Metazoan parasite of lambari Astyanax altiparanae, collected from the Peixe river, São Paulo, southeast of Brazil [PDF]

open access: yesCiência Rural, 2016
: In March 2010, 44 specimens of Astyanax altiparanae Garutti & Britski, 2000, commonly known as "lambari do rabo amarelo", collected from the Peixe river in the state of São Paulo, Brazil were analyzed.
Aline de Almeida Camargo   +5 more
doaj   +6 more sources

O lambari Astyanax altiparanae (Characidae) pode ser um dispersor de sementes? - DOI: 10.4025/actascibiolsci.v25i2.2045

open access: yesActa Scientiarum: Biological Sciences, 2008
Este trabalho caracterizou a alimentação natural de Astyanax altiparanae na sub-bacia do rio Corumbataí e bacia do rio Jacaré-pepira, com enfoque principal na ingestão de sementes de Croton urucurana.
Leandro Muller Gomiero   +1 more
doaj   +7 more sources

Cytogenetic analysis in the incertae sedis species Astyanax altiparanae Garutti and Britzki, 2000 and Hyphessobrycon eques Steindachner, 1882 (Characiformes, Characidae) from the upper Paraná river basin [PDF]

open access: yesComparative Cytogenetics, 2012
Cytogenetic analyses were accomplished in two populations of Astyanax altiparanae Garutti & Britzki, 2000 and one population of Hyphessobrycon eques Steindachner, 1882, considered incertae sedis in Characidae family. Two populations of A. altiparanae
Emanuel Martinez   +4 more
doaj   +2 more sources

Toxicity of Cyanopeptides from Two Microcystis Strains on Larval Development of Astyanax altiparanae. [PDF]

open access: yesToxins (Basel), 2019
Absorption and accumulation of bioavailable cyanobacterial metabolites (including cyanotoxins) are likely in fish after senescence and the rupturing of cells during bloom episodes. We determined the toxicity of cyanopeptides identified from two strains of Microcystis (M. panniformis MIRS-04 and M.
Fernandes K   +7 more
europepmc   +5 more sources

The complete mitochondrial genome sequences of five Otophysi species (Vertebrata, Teleostei) [PDF]

open access: yesMitochondrial DNA. Part B. Resources, 2019
Complete mitochondrial genomes of the characiform fishes Astyanax fasciatus, Astyanax altiparanae, Hoplias malabaricus (Karyomorph A) and the Gymnotiformes species Gymnotus sylvius and Gymnotus cuia were characterized in the present study.
Rodrigo Milan Calegari   +5 more
doaj   +2 more sources

A Flow Cytometry Protocol to Estimate DNA Content in the Yellowtail Tetra Astyanax altiparanae. [PDF]

open access: yesFront Genet, 2017
The production of triploid yellowtail tetra Astyanax altiparanae is a key factor to obtain permanently sterile individuals by chromosome set manipulation. Flow cytometric analysis is the main tool for confirmation of the resultant triploids individuals, but very few protocols are specific for A. altiparanae species.
Xavier PLP   +7 more
europepmc   +6 more sources

Cytogenetic comparison between two allopatric populations of Astyanax altiparanae Garutti & Britski, 2000 (Teleostei, Characidae), with emphasis on the localization of 18S and 5S rDNA [PDF]

open access: yesComparative Cytogenetics, 2011
Two populations of Astyanax altiparanae (Garutti et Britski, 2000) of the Água dos Patos stream/SP and lake Igapó/PR were analyzed. All individuals showed 2n = 50, however, different karyotypic formulae were observed. The population of the &
R. B. Pacheco   +4 more
doaj   +2 more sources

Feeding association between benthic and nektonic Neotropical stream fishes [PDF]

open access: yesNeotropical Ichthyology
Following behaviour among Neotropical stream fishes have been scarcely reported. This type of feeding association was observed in a small stream in the upper rio Paraná system between the catfish, Aspidoras fuscoguttatus, acting as a nuclear species, and
Fabrício Barreto Teresa   +1 more
doaj   +2 more sources

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