Results 11 to 20 of about 6,260 (178)
Morphological and Histometric Alterations in Gonadal and Neural Tissues of Native and Non-Native Fishes From the Lower Doce River Basin in Southeastern Brazil. [PDF]
Anat Histol EmbryolABSTRACT The ichthyofauna of the lower Doce River basin has been exposed to multiple anthropogenic stressors. Among these, the collapse of the Fundão mining tailings dam in Mariana, Minas Gerais, Brazil, in 2015 resulted in massive fish mortality and widespread contamination of aquatic environments.
Marcon L +8 more
europepmc +2 more sources
Automated Profiling of Social Behaviors to Assess the Genetic Basis of Evolution of Aggressive Behaviors in Astyanax mexicanus. [PDF]
J Exp Zool A Ecol Integr PhysiolABSTRACT Across the animal kingdom, social behaviors such as aggression are critical for survival and reproductive success. While there is significant variation in social behaviors within and between species, the genetic mechanisms underlying natural variation in social behaviors are poorly understood.
Mapa R +5 more
europepmc +2 more sources
Female mating preferences in blind cave tetras Astyanax fasciatus (Characidae, Teleostei). [PDF]
, 2006 The Mexican tetra Astyanax fasciatus has evolved a variety of more or less color- and eyeless cave populations. Here we examined the evolution of the female preference for large male body size within different populations of this species, either surface-
Rohde, Matthias +4 more
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, 2021 Astyanax orstedii (Lütken, 1875). Costa Rican Tetra; Sardina, Sardina de Río, Sardinilla, Sabalete, Sábalo, Sardina Común, Plateada, Machaca, Coliroja, Picaculo, Golosa, Tetra, Mojarra, Sardina Costarricense.
Angulo, Arturo
core +1 more source
, 2006 Astyanax tumbayaensis: CI-FML 3845, 15 ex., 57.1-75.8 mm, Argentina, Jujuy, Arroyo de los Sauces, Quebrada de Humahuaca, Cuenca Río Grande.Published as part of J. M. Mirande, G. Aguilera & M. D. L. M.
M. D. L. M. Azpelicueta +2 more
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Malagoniella (Malagoniella) astyanax
, 2019 Malagoniella (Malagoniella) astyanax (Olivier, 1789) Scarabaeus astyanax Olivier 1789: 188 Note. Five presently recognized subspecies of Malagoniella (Malagoniella) astyanax have been described, one of which occurs in the research area.
Hielkema, Meindert A., Hielkema, Auke J.
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Cytogenetic markers as a tool for characterization of hybrids of Astyanax Baird & Girard, 1854 and Hyphessobrycon Eigenmann, 1907 [PDF]
Comparative Cytogenetics, 2020 Astyanax Baird et Girard, 1854, is one of the largest genera in the family Characidae and comprises 177 valid species. This genus has been the focus of cytogenetic studies primarily owing to the presence of B chromosomes and high karyotypic diversity ...
Caio Augusto Gomes Goes +7 more
doaj +3 more sources
, 2006 Astyanax abramis: MLP 9427, 2 ex., 102.0-113.0 mm, Argentina, Misiones, Río Paraná. Astyanax cf. abramis: CI-FML 3368, Argentina, Salta, Orán, La Bambú, Río Bermejo basin, Río Blanco.Published as part of J. M. Mirande, G. Aguilera & M. D. L.
M. D. L. M. Azpelicueta +2 more
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Karyotypic diversity among three species of the genus Astyanax (Characiformes: Characidae)
Brazilian Journal of BiologyThe group Incertae sedis within the Characidae family currently includes 88 genera, previously included in the subfamily Tetragonopterinae. Among them is the genus Astyanax comprising a group of species with similar morphology and widely distributed in ...
P. B. Nishiyama +5 more
doaj +1 more source
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
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