Results 171 to 180 of about 1,667 (188)
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The International Journal of Developmental Biology, 2023
Biotechniques, including surrogate propagation derived from primordial germ cell (PGC) transplantation, are valuable tools for the reconstitution of endangered fish species. Although promising, there are no previous studies reporting such approaches using neotropical fish species.
Geovanna Carla Zacheo, Coelho +6 more
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Biotechniques, including surrogate propagation derived from primordial germ cell (PGC) transplantation, are valuable tools for the reconstitution of endangered fish species. Although promising, there are no previous studies reporting such approaches using neotropical fish species.
Geovanna Carla Zacheo, Coelho +6 more
openaire +2 more sources
Genotoxicity assessment of polluted urban streams using a native fish Astyanax altiparanae
Journal of Toxicology and Environmental Health, Part A, 2019Water quality has declined globally due to increased contamination of aquatic ecosystems. The use of fish genotoxicity biomarkers may improve and complement parameters for environmental risk assessment. The aim of this study was to assess the genotoxicity of samples collected from streams of the Jordão River, a tributary of the Paranaíba River, Brazil ...
Carine De Mendonça, Francisco +4 more
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TOXICIDADE DO ÓLEO DIESEL PARA O PEIXE Astyanax altiparanae
2012Resumo: A intensificação das atividades humanas, tanto urbanas quanto industriais, vem ocasionando o aumento dos aportes dos mais diferentes tipos de contaminantes químicos nos ambientes aquáticos continentais. Nesse contexto, os hidrocarbonetos policíclicos aromáticos (HPAs), constituintes do etróleo que apresentam maior potencial tóxico, e os ...
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Anatomia, Histologia, Embryologia, 2017
SummaryThis study aimed to describe testicular and its main ducts structure in the yellowtail tetra Astyanax altiparanae, contributing to the knowledge of the region in which semen is produced, storage and released, focusing mainly on the dynamic of germinal epithelium and Sertoli cells during germ cell maturation.
de Siqueira-Silva, D. H. +6 more
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SummaryThis study aimed to describe testicular and its main ducts structure in the yellowtail tetra Astyanax altiparanae, contributing to the knowledge of the region in which semen is produced, storage and released, focusing mainly on the dynamic of germinal epithelium and Sertoli cells during germ cell maturation.
de Siqueira-Silva, D. H. +6 more
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Cytogenetic and genome research, 2011
The genus Astyanax comprises small characin fish of the neotropical region. The so-called 'yellow-tailed characins' compose one of the most widely distributed Astyanax groups. A. altiparanae and A. aff. bimaculatus, are evolutionarily closely related and commonly found in several Brazilian hydrographic basins.
K F, Kavalco +4 more
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The genus Astyanax comprises small characin fish of the neotropical region. The so-called 'yellow-tailed characins' compose one of the most widely distributed Astyanax groups. A. altiparanae and A. aff. bimaculatus, are evolutionarily closely related and commonly found in several Brazilian hydrographic basins.
K F, Kavalco +4 more
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Efeitos citotóxicos de um herbicida a base de glifosato no peixe Astyanax altiparanae
LUMINÁRIA, 2018A constante preocupação em otimizar a produtividade agrícola frente a demanda aumentada por alimentos, traz consigo uma crescente utilização de pesticidas visando proteger as lavouras contra pragas. Nos últimos anos, com o aumento no uso de lavouras geneticamente modificadas, o glifosato se tornou um produto indispensável à agricultura, tornando-se um
Juliane Turek +3 more
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Journal of Molecular Histology
Glyphosate-based herbicides are extensively utilized in Neotropical agriculture for weed control. Despite their widespread application, concerns regarding water contamination and its consequential impacts on aquatic organisms persist. Notably, there remains a dearth of studies investigating the effects of glyphosate on Neotropical fish species.
Viktor Eustáquio Ferreira Vilaça, da Silveira +4 more
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Glyphosate-based herbicides are extensively utilized in Neotropical agriculture for weed control. Despite their widespread application, concerns regarding water contamination and its consequential impacts on aquatic organisms persist. Notably, there remains a dearth of studies investigating the effects of glyphosate on Neotropical fish species.
Viktor Eustáquio Ferreira Vilaça, da Silveira +4 more
openaire +2 more sources
Toxicity of Cyanopeptides from Two Microcystis Strains on Larval Development of Astyanax altiparanae
Toxins, 2019Kelly Afonsina Fernandes +2 more
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