Results 1 to 10 of about 269 (156)

Micronucleus frequencies in Astyanax bimaculatus (Characidae) treated with cyclophosphamide or vinblastine sulfate [PDF]

Genetics and Molecular Biology, 2000
Two known mutagenic drugs, cyclophosphamide and vinblastine sulfate, were tested using the micronucleus test in the native fish species, Astyanax bimaculatus, in order to determine which of these drugs and the doses which would be the most adequate for ...
F.E. Matsumoto, I.M.S. Cólus
doaj   +6 more sources

Toxicity and genotoxicity in Astyanax bimaculatus (Characidae) induced by microcystins from a bloom of Microcystis spp [PDF]

Genetics and Molecular Biology, 2010
Studies of genotoxicity in fish caused by cyanobacterial microcystins can be useful both in determining the sensitivity of native species, as well as comparing exposure routes.
Ricardo Rocha Pavan da Silva, Osmindo Rodrigues Pires Junior, Cesar Koppe Grisolia   +2 more
doaj   +8 more sources

Bioaccumulation and Depletion of the Antibiotic Sulfadiazine ¹⁴C in Lambari (Astyanax bimaculatus). [PDF]

Animals (Basel), 2023
Antibiotics are present in the environment, primarily due to their release through wastewater treatment plants, agricultural practices, and improper disposal of unused medications. In the environment, these drugs can be bioaccumulated by organisms and transferred along the food chain. This is a problem when considering the consumption of fish meat.
Evangelista PA, Lourenço FMO, Chakma D, Shaha CK, Konate A, Pimpinato RF, Louvandini H, Tornisielo VL.   +7 more
europepmc   +4 more sources

Nível de arraçoamento para alevinos de lambari-do-rabo-amarelo (Astyanax bimaculatus) Feeding level for yellow tail lambari (Astyanax bimaculatus) fingerlings [PDF]

Revista Brasileira de Zootecnia, 2005
Este trabalho foi realizado com o objetivo de determinar o nível ideal de arraçoamento, em porcentagem do peso vivo, para alevinos de lambari-do-rabo-amarelo (Astyanax bimaculatus).
Fábio Meurer, Carmino Hayashi, Wilson Rogério Boscolo, Lúcio Barboza Kavata, Carlos Henrique Figueiredo Lacerda   +4 more
doaj   +5 more sources

Comparative cytogenetics of microsatellite distribution in two tetra fishes Astyanax bimaculatus (Linnaeus, 1758) and Psalidodon scabripinnis (Jenyns, 1842) [PDF]

PeerJ
Background The main cytogenetic studies of the Characidae family comprise the genera Astyanax and Psalidodon involving the use of repetitive DNA probes. However, for the microsatellite classes, studies are still scarce and the function of these sequences
Rodrigo Petry Corrêa de Sousa, Ivanete de Oliveira Furo, Gláucia Caroline Silva-Oliveira, Rosigleyse Corrêa de Sousa-Felix, Carla Denise Bessa-Brito, Raynara Costa Mello, Iracilda Sampaio, Roberto Ferreira Artoni, Edivaldo Herculano Corrêa de Oliveira, Marcelo Vallinoto   +9 more
doaj   +3 more sources

Selection of autochtone probiotic for Astyanax bimaculatus [PDF]

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2017
This study aimed to isolate native lactic acid bacteria of yellow tail lambari (Astyanax bimaculatus) and evaluate their effect on host microbiota and gut morphology, as well as survival after experimental challenge.
A. Jatobá, A.V. Moraes, L.D. Steckert, G.F.A. Jesus   +3 more
doaj   +3 more sources

Freqüência de arraçoamento para alevinos de lambari do rabo-amarelo (Astyanax bimaculatus) Feeding frequency for yellow tail lambari (Astyanax bimaculatus) fingerlings [PDF]

Revista Brasileira de Zootecnia, 2004
Este experimento foi realizado em um período de 30 dias, objetivando determinar a freqüência de arraçoamento (FA) ideal para o melhor desempenho de alevinos de lambari do rabo-amarelo (Astyanax bimaculatus).
Carmino Hayashi, Fábio Meurer, Wilson Rogério Boscolo, Carlos Henrique Figueiredo Lacerda, Lúcio César Barbosa Kavata   +4 more
doaj   +5 more sources

Hydrological Connectivity Enhances Fish Biodiversity in Amazonian Mining Ponds: Insights From eDNA and Traditional Sampling. [PDF]

Mol Ecol
ABSTRACT Artisanal and small‐scale gold mining (ASGM) expansion in the Madre de Dios region of the Peruvian Amazon has transformed primary forests into a novel wetland complex of thousands of abandoned mining ponds. Despite their ecological relevance, post‐mining recovery of these systems remains understudied, particularly regarding fish biodiversity ...
Timana-Mendoza C, Reyes-Calderón A, Venail P, Britzke R, Santa-Maria MC, Araújo-Flores JM, Silman M, Fernandez LE.   +7 more
europepmc   +2 more sources

Sex disparities determined by biometric and hematological measurements in Astyanax bimaculatus [PDF]

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2020
This study aimed to compare the body indexes and hematological characteristics between Astyanax bimaculatus males and females. Four hundred fish were randomly distributed into four polyethylene tanks (100 fish/unit) in a recirculation system and fed four
M.O. Pereira, A.L. Preto, A.V. Moraes, M.F. Bittencourt, J.D. Hess, J.I.A. Andrade, A. Jatobá   +6 more
doaj   +5 more sources

Competition from sea to mountain: Interactions and aggregation in low-diversity monogenean and endohelminth communities in twospot livebearer Pseudoxiphophorus bimaculatus (Teleostei: Poeciliidae) populations in a neotropical river. [PDF]

Ecol Evol, 2020
The results of this work suggest that interspecific competition can occur in species‐poor, nonsaturated communities among specialist dominant species. Our analyses suggest also that aggregation is an important factor to determine local richness of parasites in fish populations and that intraspecific aggregation allows the coexistence of species in the ...
Salgado-Maldonado G, Caspeta-Mandujano JM, Mendoza-Franco EF, Rubio-Godoy M, García-Vásquez A, Mercado-Silva N, Guzmán-Valdivieso I, Matamoros WA.   +7 more
europepmc   +2 more sources