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Whole genome duplication and transposable element proliferation drive genome expansion in corydoradinae catfishes
(2018-02-14)
Genome size varies significantly across eukaryotic taxa and the largest changes are typically driven by macro-mutations such as whole genome duplications (WGDs) and proliferation of repetitive elements. These two processes ...
Dietary supplementation of ginger (Zingiber officinale) essential oil exhibits positive immunomodulatory effects on the neotropical catfish pseudoplatystoma reticulatum without negative effects on fish liver histomorphometry
(2021-01-01)
This study evaluated the dietary supplementation of ginger Zingiber officinale essential oil for the Neotropical catfish Pseudoplatystoma reticulatum, its effects on fish hematology, immunology, the response of these ...
Fast-starting after a breath: Air-breathing motions are kinematically similar to escape responses in the catfish Hoplosternum littorale
(2015-01-15)
Fast-starts are brief accelerations commonly observed in fish within the context of predator-prey interactions. In typical C-start escape responses, fish react to a threatening stimulus by bending their body into a C-shape ...
Evolutionary units delimitation and continental multilocus phylogeny of the hyperdiverse catfish genus Hypostomus
(2020-04-01)
With 149 currently recognized species, Hypostomus is one of the most species-rich catfish genera in the world, widely distributed over most of the Neotropical region. To clarify the evolutionary history of this genus, we ...
The role of the autonomic nervous system in control of cardiac and air-breathing responses to sustained aerobic exercise in the African sharptooth catfish Clarias gariepinus
(Elsevier B.V., 2017-01-01)
Clarias gariepinus is a facultative air-breathing catfish that exhibits changes in heart rate (f(H)) associated with air breaths (AB). A transient bradycardia prior to the AB is followed by sustained tachycardia during ...
Phylogeographic patterns in suckermouth catfish Hypostomus ancistroides (Loricariidae): dispersion, vicariance and species complexity across a Neotropical biogeographic region
(Taylor & Francis Ltd, 2016-01-01)
The upper Parana River system (UP) is a highly diverse biogeographic province for freshwater fishes, but little is known about processes which shaped that diversity. This study describes the phylogeographic pattern in ...
Bioquímica e citogenética de jundias (Rhamdia quelen) expostos a diferentes concentrações de tório
(Universidade Federal de Santa MariaBRBioquímicaUFSMPrograma de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, 2007-02-23)
The objective of this study was to evaluate the effect of thorium (Th) on the metabolism of silver catfish (Rhamdia quelen) through biochemical parameters from the muscle tissue (glycogen, glucose, lactate, protein and ...
Anestesia em jundiás (Rhamdia quelen) expostos a substâncias isoladas de plantas
(Universidade Federal de Santa MariaBRZootecniaUFSMPrograma de Pós-Graduação em Zootecnia, 2007-02-23)
There are some effective anesthetics for fishes, but it is important to search
new alternatives of substances easily obtained, of low cost for fish farmers and with
no risk to fish and human health. Therefore, this study ...
Genetic Diversity of an Imperiled Neotropical Catfish and Recommendations for Its Restoration
(Frontiers Media Sa, 2017)
The long-whiskered catfish Steindachneridion parahybae (Family Pimelodidae) is endemic to the Paraiba do Sul River basin in southeastern Brazil. This species was heavily exploited by artisanal fisheries and faces challenges ...
Motilidade espermática, fertilização dos ovócitos e eclosão dos ovos de Jundiá em água contaminada por cádmio
(Sociedade Brasileira de Zootecnia, 2014)