Results 11 to 20 of about 69 (49)

The karyotypes and evolution of ZZ/ZW sex chromosomes in the genus Characidium (Characiformes, Crenuchidae) [PDF]

open access: yesComp Cytogenet, 2018
Available data on cytotaxonomy of the genus Characidium Reinhardt, 1867, which contains the greatest number of species in the Characidiinae (Crenuchidae), with 64 species widely distributed throughout the Neotropical region, were summarized and reviewed.
Luiz Antonio Carlos Bertollo   +4 more
core   +2 more sources

Single origin of sex chromosomes and multiple origins of B chromosomes in fish genus Characidium [PDF]

open access: yesPLoS One, 2014
Chromosome painting with DNA probes obtained from supernumerary (B) and sex chromosomes in three species of fish genus Characidium (C. gomesi, C. pterostictum and C.
A Stamatakis   +70 more
core   +7 more sources

Environmental predictors of the life history of the flag tetra Hyphessobrycon heterorhabdus (Characiformes: Characidae) in streams of the Eastern Amazon [PDF]

open access: yes, 2023
This study aimed to characterize the reproductive biology of Hyphessobrycon heterorhabdus, and its response to environmental variations in the Eastern Amazon streams. We sampled specimens every two months, between March 2019 and January 2020.
Antonio Elivelton Paiva de Oliveira   +4 more
core   +1 more source

Inventário e distribuição espacial da ictiofauna no sistema lagunar do sul e leste, Ilha Grande, Rio de Janeiro: [PDF]

open access: yes, 2023
The fish fauna in estuaries and coastal lagoons in Rio de Janeiro state is reasonably known, there are, however, little or insufficiently studied areas.
Rodrigues Gomes, José
core   +2 more sources

Changes in ichthyofauna composition along a gradient from clearwaters to blackwaters in coastal streams of Atlantic forest (southeastern Brazil) in relation to environmental variables [PDF]

open access: yes, 2012
A falta de conhecimento dos peixes de água doce em riachos costeiros no estado de São Paulo é preocupante, considerando que estes riachos estão inseridos em um bioma brasileiro extremamente ameaçado, a floresta Atlântica.
Abilhoa V   +62 more
core   +1 more source

Crescimento e mortalidade de Oligosarcus hepsetus (Cuvier, 1829) (Characiformes, Characidae) no Parque Estadual da Serra do Mar, Núcleo Santa Virgínia, São Paulo, Brasil [PDF]

open access: yes, 2011
Parâmetros de crescimento e mortalidade foram estimados para Oligosarcus hepsetus capturados no Parque Estadual da Serra do Mar, Núcleo Santa Virgínia.
Alberto Luciano Carmassi   +50 more
core   +3 more sources

Checklist of freshwater ichthyofauna from coastal streams of Juréia-Itatins reserve, southeastern Brazil [PDF]

open access: yes, 2013
The Juréia-Itatins Ecological Station (JIES) is one of the few protected areas in the state of São Paulo, which harbor a significant portion of the Atlantic forest.
Cristina Gonçalves, Francisco Braga
core   +1 more source

Compartilhamento de recursos por duas espécies de peixes nectobentônicas de riachos na bacia do rio Cachoeira (BA) [PDF]

open access: yes, 2011
O presente estudo teve como objetivo buscar particularidades e aspectos em comum relacionados com as condições ambientais de ocorrência e recursos alimentares utilizados por Trichomycterus bahianus e Characidium aff.
ALLAN J.D.   +45 more
core   +2 more sources

Comparisons of fish assemblages between above- and below-dams in southeastern brazilian river: The influence of different types of dams / Comparação entre assembleias de peixes a montante e a jusante de barragens em um rio do sudeste brasileiro: A influencia de diferentes tipos de barramentos [PDF]

open access: yes, 2021
Comparações de assembleias de peixes entre hábitats a montante e a jusante de barragens em um rio no Sudeste do Brasil foram estudadas com o objetivo de detectar possíveis diferenças das assembleias de peixes entre estes hábitats em duas estações (seca e
Albieri, Rafael Jardim   +1 more
core   +1 more source

Sistemática y distribución geográfica de la Familia Crenuchidae (Ostariophysi: Characiformes) en la Argentina [PDF]

open access: yes, 2017
Tesis presentada para optar al Grado de Doctor en Ciencias NaturalesFil: Arias, José Dionisio. Universidad Nacional de La Plata.
Arias, José Dionisio
core   +2 more sources

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