Results 61 to 70 of about 562 (191)

Characithecium spp. (Monogenea: Dactylogyridae) from Astyanax bimaculatus (Characiformes: Characidae) in Northeast Brazil, with Description of a New Species

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, Reinaldo José da Silva, Fábio Hideki Yamada   +2 more
openaire   +4 more sources

DESENVOLVIMENTO DE UM PROTOCOLO DE FEMINIZAÇÃO EFICIENTE PARA O LAMBARI ASTYANAX BIMACULATUS DEVELOPMENT OF AN EFFICIENT FEMINIZATION PROTOCOL FOR LAMBARI ASTYANAX BIMACULATUS

, 2020
Fêmeas de Astyanax bimaculatus possuem melhores índices zootécnicos quandocomparados aos machos da mesma espécie. O objetivo deste trabalho foi desenvolver umprotocolo eficiente de feminização do lambari-do-rabo-amarelo Astyanax bimaculatus,visando a ...
Artur de Lima PRETO, André Zimmermann LISBÔA, Willian URBANOVICZ, Vitória Cristina FORTUNATO   +3 more
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Densidade de estocagem na produção de juvenis de duas espécies de lambaris em sistema de recirculação

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
doaj   +1 more source

The effects of water temperature and hybridization on embryonic development and gametogenesis of two species of Amazonian tetra

Theriogenology Wild, 2023
The study of embryonic development in fish and how water temperature affects the life stage in this group is of pivotal importance to support works that aim at the conservation, management, and recovery of endangered or high economic valuable species. It
Saynara Miranda, Ludmylla Santos, Suianny Chaves, Bianca Lima, Jeane Rodrigues, Maria Rosa-Silva, Hadda Tercya, Paulo Jesus, Eduardo Albuquerque, Caio Maximino, Diógenes Siqueira-Silva   +10 more
doaj   +1 more source

Fig. 3 in A multi-approach analysis of the genetic diversity in populations of Astyanax aff. bimaculatus Linnaeus, 1758 (Teleostei: Characidae) from Northeastern Brazil

, 2008
Fig. 3. Giemsa-stained karyotypes of Astyanax aff. bimaculatus (2n = 50, FN = 96) from sites A (a), B (b) and C (c). In (d), a somatic metaphase after silver nitrate staining in a specimen from Contas River, showing four positive signals (arrows).
Carneiro, Paulo Luiz Souza, Pamponet, Vanessa de Carvalho Cayres, Affonso, Paulo Roberto Antunes de Mello, Júnior, Juvenal Cordeiro Silva, Gaiotto, Fernanda Amato, Oliveira, Claudine Gonçalves de, Miranda, Viviam Souto   +6 more
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Characterization of a new cytotype and ocurrence of a B microchromosome in two spot astyanax, Astyanax bimaculatus Linnaeus, 1758 (Characiformes: Characidae)

, 2022
Conselho Nacional de Desenvolvimento Científico e Tecnológico (307382/2019‐2, 308217/2019‐5, Universal 422744/2018‐2)Universidade Federal do Pará. Instituto de Estudos Costeiros. Laboratório de Evolução. Bragança, PA, Brazil.Universidade Federal do Pará.
Sousa, Rodrigo Petry Corrêa de, Oliveira, Gláucia Caroline Silva, Vallinoto, Marcelo, Furo, Ivanete de Oliveira, Santos, Jaymeson Lielson Anjos dos, Oliveira, Edivaldo Herculano Corrêa de   +5 more
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Ichthyofauna of coastal lakes and the Igaraçu River in Ilha Grande, Delta do Parnaíba, Parnaíba, Piauí State, northeastern Brazil [PDF]

Check List, 2014
This study aims to provide a list of fish species from the Igaraçu River and some lakes of the lower Parnaíba River, Delta do Parnaíba, northeastern state of Piauí, Brazil.
Filipe Melo, Rennan Melo, Lucas Resende
doaj   +3 more sources

A new tetra of the genus Astyanax (Characiformes: Acestrorhamphidae) with lateral stripes from lower Amazon basin, Brazil

Neotropical Ichthyology
A new species of Astyanax is described from the rio Jauari and rio Mulato basins, tributaries of the left bank of the lower Amazon River, Pará State, Brazil. The new species is distinguished from the other congeners, except A. kullanderi, A.
Josué Sarino-Araújo, Cárlison Silva-Oliveira, Flávio C. T. Lima, André L. C. Canto, Frank R. V. Ribeiro   +4 more
doaj   +1 more source

Histological and Histometric Evaluation of the Liver in Astyanax Bimaculatus (Teleostei: Characidae), Exposed to Different Concentrations of an Organochlorine Insecticide [PDF]

The Anatomical Record, 2015
ABSTRACTTo investigate possible morphological changes to the liver tissue of lambaris, Astyanax bimaculatus (Linnaeus, 1758), females were exposed to treatments of sublethal concentrations of the insecticide Thiodan® for 96 hr. Treatments included three sublethal concentrations of 1.15, 2.3, and 5.6 μg L−1 of Thiodan® and a control group without ...
Lucas, Marcon, Nilo, Bazzoli, Ann, Honor Mounteer, Laércio, Dos Anjos Benjamin   +3 more
openaire   +2 more sources

Padrões citogenéticos em representantes de dois complexos de espécies de peixes com ocorrência em ecossistemas semiáridos neotropicais: Astyanax bimaculatus (Characidae) e Gymnotus carapo (Gymnotidae) [PDF]

, 2023
Cytogenetic data from Neotropical fish have revealed numerous cryptic speciation processes, in allopatry, with particular emphasis on species with wide geographic distribution belonging to the Orders Characiformes and Gymnotiformes.
Costa, Jozenilda Francinilma da
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