Results 191 to 200 of about 7,429 (225)

Characterization of a new cytotype and ocurrence of a B microchromosome in two spot astyanax, Astyanax bimaculatus Linnaeus, 1758 (Characiformes: Characidae).

Journal of Fish Biology, 2022
Although Astyanax bimaculatus is the most representative species of the genus in the Amazon region, there are no cytogenetic studies of A. bimaculatus species in Amazon region.
Rodrigo Petry Corrêa de Sousa, Jaymeson Lielson Anjos Dos Santos, G. Silva-Oliveira, I. O. Furo, E. D. de Oliveira, M. Vallinoto   +5 more
semanticscholar   +3 more sources

Gametogenesis and seminatural reproduction of the Amazon twospot astyanax Astyanax bimaculatus (Linnaeus, 1758) cultivated in an enriched environment.

Animal Reproduction Science
Environmental enrichment is used to provide well-being to the animals, such as fish, in captive conditions, mimicking their natural habitat. It may influence fish behavior, physiology, and survival.
Bianca Lima de Sousa, S. Chaves, Eduardo Albuquerque, J. Rodrigues, V. Coimbra, Saynara Miranda, Ana Luiza Caldas, Marissol Leite, Matheus Pereira dos Santos, R. C. Corrêa Filho, Adam Dreyton Ferreira dos Santos, C. Maximino, D. Siqueira-Silva   +12 more
semanticscholar   +3 more sources

Integrative Taxonomy Suggests Resurrection of Species of the Astyanax bimaculatus Group (Characiformes, Characidae)

Zebrafish
Using integrative tools can be effective for species identification, especially in complex groups like Astyanax. Astyanax bimaculatus group is composed of six valid species, including A. lacustris. “A. altiparanae”, “A.
Mariane Gavazzoni, Flavia C Brezinski, T. H. Pedroso, C. S. Pavanelli, W. J. Graça, D. Blanco, R. L. Lui, V. P. Margarido   +7 more
semanticscholar   +3 more sources

Morphologically Cryptic Species of the Astyanax bimaculatus “Caudal Peduncle Spot” Subgroup Diagnosed Through Cytogenetic Characters

Zebrafish, 2018
Astyanax is a species-rich polyphyletic genus distributed between the southern United States and central Argentina. The genus contains groups of cryptic species, which are difficult to distinguish, and are sometimes identified wrongly.
Mariane Gavazzoni, L. M. Paiz, C. A. M. Oliveira, C. S. Pavanelli, W. J. Graça, V. P. Margarido   +5 more
semanticscholar   +3 more sources

Genotoxicity in Astyanax bimaculatus (Twospot Astyanax) Exposed to the Waters of Engano River (Brazil) as Determined by Micronucleus Tests in Erythrocytes

Archives of Environmental Contamination and Toxicology, 2014
Changes in aquatic environments are potentially large, and effects on biota are highly variable. In Santa Catarina State, Brazil, the main sources of pollution in headwaters are wastewater, pesticides, and animal waste, which contain chemical and organic additives, and there is little knowledge about their effects on aquatic organisms.
J. Bogoni, Neide Armiliato, Celi Teresinha Araldi-Favassa, V. Techio   +3 more
semanticscholar   +3 more sources

Oogenesis and in Vitro Reproduction of the Twospot Astyanax Astyanax Bimaculatus (Linnaeus, 1758) Submitted to the Conspecific Alarm Substance

Social Science Research Network, 2023
J. Rodrigues, Maria Rosa-Silva, H. Tercya, P. Jesus, Saynara Miranda, Hingrid Oliveira, Bianca Lima, L. Santos, C. Maximino, D. Siqueira-Silva   +9 more
semanticscholar   +2 more sources

Astyanax bimaculatus

CABI Compendium, 2022
This datasheet on Astyanax bimaculatus covers Identity.

semanticscholar   +1 more source

Astyanax bimaculatus

2015
Astyanax bimaculatus (Linnaeus, 1758) original Salmo bimaculatus type locality America Meridionali synonyms Tetragonopterus maculatus Müller & Troschel, 1845 | Brasilia, Guiana et Surinam ? Tetragonopterus gronovii Valenciennes, 1850 | Surinam; rivières de La Guyane ? Tetragonopterus linnaei Valenciennes, 1850 | Cayenne [French Guiana]
Mirande, Juan Marcos, Several, Stefan Koerber Abstract   +1 more
openaire   +1 more source

Molecular phylogeny by Bayesian analysis and description of a new species of Henneguya, a parasitic cnidarian from Astyanax bimaculatus (Linnaeus, 1758) (Characiformes: Acestrorhamphidae) in Caatinga: A biome with neglected biodiversity data.

Parasitology international
Myxozoans are cnidarian parasites with a worldwide distribution and represent some of the most spectacular examples of parasite radiation. Based on an integrative taxonomic approach that includes spore morphology and molecular data, as well as other ...
Maurício Jorge, P. D. Mathews, D. Vieira, R. D. da Silva   +3 more
semanticscholar   +1 more source

Lysine and methionine supplementation in diet of lambari (Astyanax bimaculatus) cultured in biofloc system and in clear water

Brazilian Journal of Animal and Environmental Research
  This study evaluated the effects of amino acid supplementation on lambari (Astyanax bimaculatus) cultured in a biofloc technology (BFT) system and in clear water (RAS) using a factorial design.
E. K. Battisti, E. G. Durigon, Samuel Marasca, Thamara Luísa Staudt Schneider, A. Rabaioli, F. Sutili, I. Coldebella, A. C. K. Klinger, R. Lazzari   +8 more
semanticscholar   +1 more source