Results 11 to 20 of about 1,667 (188)
Acta 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
Genetics and Molecular Biology, 2002 Astyanax fishes are among the most important food-web components of South America rivers. In the Iguaçu River basin, the Astyanax genus is represented mainly by endemic species.
Prioli Sônia M.A.P. +7 more
doaj +5 more sources
Avaliation of Roundup® mutagenic activity in Astyanax altiparanae (Chordata; Actinopterygii) [PDF]
Evidência, 2011 The glyphosate-based herbicides such as Roundup®, are widely used around the world. Data on the abilityof these toxic compounds have to interfere in the DNA caused mutations are important for monitoringnatural populations.
Geonildo Rodrigo Disner +2 more
doaj +1 more source
Endocrine disruptive action of diclofenac and caffeine on Astyanax altiparanae males (Teleostei: Characiformes: Characidae) [PDF]
Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 2020 Diclofenac (DCF) and caffeine (CAF) are persistent pharmaceuticals that occur in mixtures in the aquatic ecosystems causing effects in the reproductive physiology of aquatic organisms.
Brambila Souza, Gabriela +7 more
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Effectiveness of estradiol valerate on sex reversion in Astyanax altiparanae (Characiformes, Characidae) [PDF]
Brazilian Archives of Biology and Technology, 2012 The objective of this study was to evaluate the effectiveness of estradiol valerate in an attempt to feminize the male Astyanax altiparanae. One thousand newly-hatched larvae were randomly distributed in four incubators.
Jaqueline Cristina de Bem +3 more
doaj +5 more sources
Acta Scientiarum: Biological Sciences, 2008 Garutti (1995) fez a revisão de algumas espécies de Astyanax (Osteichthyes, Characidae) e aquela, conhecida como “tambiú” na bacia do alto rio Paraná, anteriormente identificada como Astyanax bimaculatus, foi considerada nova e posteriormente descrita ...
Weferson Júnio da Graça +1 more
doaj +3 more sources
Transport of Astyanax altiparanae Garutti and Britski, 2000 in saline water
Acta Scientiarum: Biological Sciences, 2015 Two experiments were performed. The first aimed to assess the tolerance of fingerlings Astyanax altiparanae to water salinity. Fish were exposed to salinity of 0, 3, 6, 9, 12 or 15 g NaCl L-1 for 96 hours. The fish mortality was 0%, in the levels of 0, 3
Ana Lúcia Salaro +5 more
doaj +3 more sources
Revista Brasileira de Saúde e Produção Animal, 2008 Intensive fish production processes realized during routine management or experimental samplings are indispensable procedures that may cause damages of several proportions, impairing the sampling and causing death to biological model. To avoid damages on
André Fernando Nascimento Gonçalves +3 more
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Memorias do Instituto Oswaldo Cruz, 2003 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.
Barassa Bianca +2 more
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Genetics and Molecular Biology, 2008 Several species of the genus Astyanax have already been genetically studied, and B-chromosomes have been considered to be an interesting feature in some species of this group.
Diogo Teruo Hashimoto +4 more
doaj +3 more sources