Results 61 to 70 of about 6,231 (157)

On some species of Astyanax reported erroneously from Argentina [PDF]

, 2015
Several species of Astyanax have been reported from Argentina which currently are considered not to be distributed so far South or whose identity as Astyanax is doubtful.
Mirande, Juan Marcos, Koerber, Stefan
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Redescription of Prosthenhystera obesa (Diesing, 1850) (Callodistomidae, Digenea) with New Host Records and Data on Morphological Variability

Memorias do Instituto Oswaldo Cruz, 1997
Prosthenhystera obesa (Diesing,1850) Travassos, 1922 from the gall bladder of Astyanax bimaculatus, Caranx gibbosus, Galeocharax humeralis, Leporinus copelandii, Pimelodus fur, Pseudopimelodus roosevelti, Salminus brevidens, Salminus maxillosus and from ...
Anna Kohn, Berenice MM Fernandes, Maria de Fatima D Baptista-Farias   +2 more
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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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Evaluation of the effects of pressure gradients on four Brazilian freshwater fish species

Brazilian Archives of Biology and Technology, 2009
This work aimed to experimentally evaluate the behavior of Brazilian freshwater fish species when submitted to a gradual increase in pressure, as well as sudden decompression's effects simulating the passage through a hydroelectric turbine.
Paulo dos Santos Pompeu, Luiz Felipe Mascarenhas Horta, Carlos Barreira Martinez   +2 more
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Structure of the littoral fish assemblage in an impounded tributary: the effects of macrophytes presence (subtropical region, Brazil) Estrutura da assembleia de peixes litorâneos em um tributário represado: os efeitos da presença de macrófitas (região subtropical, Brasil)

Brazilian Journal of Biology, 2012
To evaluate the effects of macrophytes presence in the structure of littoral fish assemblages in the littoral zone, monthly samples were collected from September, 2006 to August, 2007 in an impounded tributary of the Itá Reservoir, the Fragosos River ...
S. Hermes-Silva, E. Zaniboni-Filho
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Salinity effects in metabolic rate and behavior in lambari Astyanax bimaculatus / Efeitos da salinidade no metabolismo de rotina e comportamento do lambari Astyanax bimaculatus [PDF]

, 2020
Lambari (Characidae) is a small fish, common in Brazil and it has potential for aquaculture. It is used aslive-bait in sport fishing in inland waters. The most commonly used live-bait in marine and estuarine sport fishing is the white shrimp (Litopenaeus
Barros, Leonardo Castilho de, Rezende, Karina Fernandes Oliveira, Henriques, Marcelo Barbosa, Barbieri, Edison, Carneiro, Júlia Schulz   +4 more
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Feeding ecology of stream-dwelling Characidae (Osteichthyes: Characiformes) from the upper Tocantins River, Brazil

Zoologia (Curitiba), 2013
In this contribution we studied the trophic ecology of four Characidae species from the Cavalo Stream, upper Tocantins River, considering diet overlap and trophic niche breadth.
Maíra Moraes, Carla Ferreira Rezende, Rosana Mazzoni   +2 more
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Performance of lambari-do-rabo-amarelo Astyanax bimaculatus (Linnaeus, 1758) fed diets based on adult black soldier fly meal: analysis of its effectiveness as a substitute for fish meal [PDF]

Brazilian Journal of Biology
This study evaluated the performance of the lambari-do-rabo-amarelo Astyanax bimaculatus fed diets containing BSF adult fly meal, replacing fishmeal. Two hundred juveniles were distributed in 20 tanks, with five levels of substitution (0%, 12.5%, 25%, 37.
E .O. Souza, M. R. Zeferino, L. R. Periard, L. P. Gonçalves-Junior, J. G. Vargas-Junior, P. P. Mendonça   +5 more
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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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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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