Results 1 to 10 of about 398 (80)

Basic cytogenetics and physical mapping of ribosomal genes in four Astyanax species (Characiformes, Characidae) collected in Middle Paraná River, Iguassu National Park: considerations on taxonomy and systematics of the genus. [PDF]

open access: yesComp Cytogenet, 2015
Karyotypes and chromosomal characteristics of both minor and major rDNAs in four fish species known popularly as “lambaris”, namely Astyanax abramis (Jenyns, 1842), Astyanax asuncionensis Géry, 1972, Astyanax correntinus (Holmberg, 1891) and Astyanax sp.
Paiz LM   +3 more
europepmc   +2 more sources

FEEDING HABITS AND REPRODUCTIVE BIOLOGY OF ASTYANAX ABRAMIS/HÁBITO ALIMENTAR E BIOLOGIA REPRODUTIVA DE ASTYANAX ABRAMIS [PDF]

open access: yesBrazilian Journal of Development, 2021
The species of the genus Astyanax, popularly known as ‘lambaris’, are important ecologically since they can be used as environmental bioindicators. However, knowledge about the feeding habit and reproduction of species of this genus is scarce. Therefore,
Erica Ferreira Leite   +4 more
openaire   +4 more sources

Ecological Factors and Diversification among Neotropical Characiforms [PDF]

open access: yesInternational Journal of Ecology, Volume 2012, Issue 1, 2012., 2012
Morphological and DNA sequence data has been used to propose hypotheses of relationships within the Characiformes with minimal comparative discussion of causes underpinning the major intraordinal diversification patterns. We explore potential primary morphological factors controlling the early diversification process in some Neotropical characiforms as
Cástor Guisande   +12 more
wiley   +3 more sources

Current ecological understanding of fungal-like pathogens of fish: what lies beneath? [PDF]

open access: yesFront Microbiol, 2014
Despite increasingly sophisticated microbiological techniques, and long after the first discovery of microbes, basic knowledge is still lacking to fully appreciate the ecological importance of microbial parasites in fish. This is likely due to the nature
Gozlan RE   +5 more
europepmc   +5 more sources

Fatores abióticos que afetam a distribuição do gênero Astyanax Baird & Girard, 1854 em riachos de cabeceiras de Chapada dos Guimarães, bacia do rio Cuiabá, Mato Grosso [PDF]

open access: yesBioscience Journal, 2011
Os principais fatores que influenciam a distribuição de uma espécie estão relacionados principalmente com a capacidade de dispersão, o comportamento, a presença de outras espécies e aos fatores físico-químicos.
Mahmoud Mehanna, Jerry Penha
doaj   +4 more sources

Highlighting Astyanax Species Diversity through DNA Barcoding [PDF]

open access: yesPLoS ONE, 2016
Bruno Cesar Rossini   +2 more
exaly   +2 more sources

Redescription of Astyanax erythropterus (Holmberg, 1891) (Teleostei: Characiformes: Characidae) from La Plata basin in Argentina [PDF]

open access: yes, 2010
Astyanax erythropterus (Holmberg, 1891) originally described on the basis of one juvenile, is redescribed herein based on juveniles and adults from the type-localiy.
Almirón, Adriana E.   +4 more
core   +5 more sources

Fish from urban tributaries to the Vermelho River, upper Paraguay River Basin, Mato Grosso, Brazil [PDF]

open access: yesCheck List, 2014
The fish fauna of urban streams is still poorly known, it difficult to assess the effects of urbanization expansion on fish species composition, for this reason the aim of this study was to provide a checklist of species that compose the ichthyofauna of ...
Valdeci Oliveira   +3 more
doaj   +3 more sources

Comparative cytogenetics of Astyanax (Teleostei: Characidae) from the upper Paraguay basin

open access: yesNeotropical Ichthyology, 2018
Astyanax is one of the most abundant and diverse taxa of fishes in the Neotropical region. In order to increase the amount of cytogenetic information for Astyanax as well as to exhibit data to subsidize future taxonomic studies, this work analyzed three ...
Thais K. S. S. Teixeira   +6 more
doaj   +1 more source

First record of Astyanax puka Mirande, Aguilera & Azpelicueta, 2007 (Teleostei: Characidae) in Juramento River basin, Salta, Argentina [PDF]

open access: yes, 2014
Astyanax puka was described from the endorheic Río Salí basin, Argentina, and it was not previously recorded elsewhere, being considered until now as endemic from that basin.
Aguilera, Gaston   +2 more
core   +1 more source

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