Results 41 to 50 of about 1,667 (188)
In vivo phagocytosis and hematology in Astyanax altiparanae, a potential model for surrogate technology [PDF]
Brazilian Journal of Biology, 2020 Abstract Although the potential of surrogate propagation technology for aquaculture and conservation of Neotropical fish, the poor understanding of the host immune system may results in rejection and destruction of the donor material. Thus, it is necessary to study and to develop methods to evaluate the effects of immunosuppressive drugs employment and
N. Levy-Pereira +8 more
openaire +6 more sources
Ictiofauna da bacia do Rio Jacaré-Guaçu, bacia do Alto Rio Paraná [PDF]
, 2011 This study aimed to evaluate the fish fauna composition and distribution in different environments, up- and downstream the Gavião Peixoto Dam, in the Jacaré-Guaçu River basin.
ARCIFA, Marlene Sofia +1 more
core +2 more sources
Acta Scientiarum: Biological Sciences, 2017 Aiming to study the changes in the diet of Astyanax altiparanae in the early developmental stages, in the presence of Eichhornia crassipes (EC) and Lemna sp. (LM), larvae of Astyanax altiparanae were stocked in eight tanks of 900 L (500 ind.
Eliana Maria Galdioli +4 more
doaj +1 more source
Ultramorphological changes in gill rakers of Astyanax altiparanae (Characidae) kept in contaminated environments [PDF]
Fish Physiology and Biochemistry, 2017 Most water bodies in Brazil, and in the world, are contaminated by some types of pollutants, ranging from sewage to metal/chemicals, carcinogenic products, and biodegradable detergents. Despite the extensive knowledge on their effects on fish biology and especially on gill morphology, research that concerns their impacts on gill rakers and implications
Lopes, F. P. +6 more
openaire +3 more sources
Acta Scientiarum: Biological Sciences, 2008 Neste trabalho foi obtido o fator de condição relativo de Hypostomus strigaticeps, Astyanax altiparanae, Astyanax scabripinnis, Astyanax fasciatus, Astyanax sp1., Characidium aff. zebra, Piabina argentea, Hypostomus ancistroides, Hypostomus sp1., Parodon
Leandro Muller Gomiero +1 more
doaj +1 more source
Genetics and Molecular Biology, 2006 Fluorescence in situ hybridization (FISH) was undertaken in order to determinate the chromosomal distribution pattern of 18S and 5S ribosomal DNAs (rDNA) in four populations of the characid fish Astyanax altiparanae from the upper Paraná river basin ...
Carlos Alexandre Fernandes +1 more
doaj +1 more source
Brazilian Journal of Biology, 2017 Here we conduct a qualitative and quantitative analysis of ectoparasites and endoparasites of Astyanax altiparanae (Garutti & Britski, 2000), popularly known as lambari-do-rabo-amarelo collected from the Batalha River, State of São Paulo, Brazil.
D. C. Negrelli +2 more
doaj +1 more source
Journal of Applied Ichthyology, 2021 Gynogenesis is a chromosomal manipulation technique where an offspring is generated exclusively from maternal inheritance. In the yellowtail tetra (Astyanax altiparanae) almost all gynogenetic fish were females, suggesting a genetic sex determination system of XX/XY. However, due to environmental (e.g.
Talita Maria Lázaro +6 more
openaire +3 more sources
Molecular study of Astyanax altiparanae (Osteichthyes, Characidae) as a probable species complex
Genetics and Molecular Research, 2014 Astyanax altiparanae, belonging to the bimaculatus group, which includes species with similar colors and morphology, occurs in the upper Paraná River basin. As the use of mitochondrial DNA has made great strides in the diagnosis of species, in previous researches, two strains were detected in A.
I C, Deprá +5 more
openaire +2 more sources
A new species of Henneguya, a gill parasite of Astyanax altiparanae (Pisces: Characidae) from Brazil, with comments on histopathology and seasonality [PDF]
, 2015 A new species of Myxosporea, Henneguya chydadea, is described parasitizing the gills of Astyanax altiparanae collected from a lake on Rio das Pedras farm near Campinas, state of São Paulo, Brazil.
Arana, Sarah +2 more
core +1 more source