Results 51 to 60 of about 284 (163)
Redescription of Astyanax goyacensis Eigenmann, 1908 (Ostariophysi: Characiformes: Characidae)
Neotropical IchthyologyAstyanax goyacensis Eigenmann, 1908 is redescribed based on the holotype and 25 topotypes. The species belongs to the A. bimaculatus species complex, sharing with those species a black, horizontally ovate, humeral spot (the most conspicuous feature of ...
Valdener Garutti, Francisco Langeani
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O inseticida Thiodan® sobre o desenvolvimento folicular de lambaris
Ciência Rural, 2014 O Thiodan(r) é um organoclorado a base de endosulfan que pode causar alterações morfológicas nos tecidos de peixes, dependendo da concentração e tempo de exposição.
Lucas Marcon +4 more
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Ecotoxicology and Environmental Safety, 2002 Tributyltin (TBT) is widely used as a biocide in antifouling paints. Astyanax bimaculatus adult fish were acclimatized in a laboratory and isolated in groups of eight individuals. Two groups were used as a control (similar handling and corn oil control) and one group was exposed to TBTCI dissolved in corn oil (0.0688 +/- 0.0031 microg TBT.g(-1)) every ...
C A, Oliveira Ribeiro +5 more
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Continuous tooth replacement: what can teleost fish teach us?
Biological Reviews, Volume 99, Issue 3, Page 797-819, June 2024.ABSTRACT Most tooth‐bearing non‐mammalian vertebrates have the capacity to replace their teeth throughout life. This capacity was lost in mammals, which replace their teeth only once at most. Not surprisingly, continuous tooth replacement has attracted much attention. Classical morphological studies (e.g.
Ann Huysseune, P. Eckhard Witten
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International Journal of Zoology, Volume 2012, Issue 1, 2012., 2012 To date, little attention has been devoted to possible complementary effects of multiple forms of public information similar information on the foraging behaviour of predators. In order to examine how predators may incorporate multiple information sources, we conducted a series of predator attraction trials in the Lower Aripo River, Trinidad.
Chris K. Elvidge +2 more
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Assessing fish diversity in abandoned mining ponds in Madre de Dios, Peru, using environmental DNA
Environmental DNA, Volume 6, Issue 1, January–February 2024.We surveyed four lentic systems in Madre de Dios, Peru: two abandoned mining ponds created by ASGM and two unmined oxbow lakes as a reference to assess fish recolonization. We compared two alternative eDNA processing methods and contrasted our results with historic data from traditional biodiversity monitoring. Our results indicate that eDNA could be a
Camila Timana‐Mendoza +4 more
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Neotropical IchthyologyAstyanax is a diverse group of Neotropical fishes, whose different forms occupy different environments. This great diversity is also reflected on cytogenetic aspects and molecular markers, which have repeatedly been demonstrated by cytogenetic studies ...
Renata Cristina Claudino de Oliveira Tenório +4 more
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Astyanax bimaculatus (Linnaeus 1758) Distribution Widespread Amazonia. Notes Barriga (1994), Valdiviezo-Rivera et al. (2018).
Escobar-Camacho, Daniel +4 more
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Acta Parasitologica, 2021 To date, seven species of Characithecium Mendonza-Franco, Reina and Torchin, 2009 (Monogenea, Dactylogyridae) are valid, parasitizing mainly fishes of the family Characidae (Characiformes) in the Neotropical region. During a parasitological study of fishes in the Batateiras River and Carás stream, Ceará state, Brazil, two species of Characithecium were
Bruno Anderson Fernandes da Silva +2 more
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Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2015 The aim of this study was to evaluate the stocking density for juveniles for two different species of characins (Astyanax bimaculatus and A. scabripinnis) in a recirculation system.
A. Jatobá, B. C. Silva
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