Results 1 to 10 of about 60 (43)

Cytogenetic and Molecular Data Demonstrate that the Bryconinae (Ostariophysi, Bryconidae) Species from Southeastern Brazil Form a Phylogenetic and Phylogeographic Unit. [PDF]

open access: yesPLoS ONE, 2015
Brycon spp. occur in Neotropical watersheds to the west and east of the Andes, and as they are sensitive to anthropogenic changes, many these species are endangered in southeastern Brazil.
Natália Martins Travenzoli   +5 more
doaj   +6 more sources

Comparative study on hematological parameters of farmed matrinxã, Brycon amazonicus Spix and Agassiz, 1829 (Characidae: Bryconinae) with others Bryconinae species Estudo comparativo sobre parâmetros hematológicos de matrinxã Brycon amazonicus Spix e Agassiz, 1892(Characidae: Bryconinae) criados em cativeiro, com outras espécies de Bryconinae [PDF]

open access: yesActa Amazonica, 2008
The aim of this study was not only to determine the red blood cells parameters, thrombocyte and leukocyte counts in farmed Brycon amazonicus (matrinxã), to compare these parameters among Bryconinae species from literature, and also to investigate the ...
Marcos Tavares-Dias   +4 more
doaj   +5 more sources

The unique karyotype of Henochilus wheatlandii, a critically endangered fish living in a fast-developing region in Minas Gerais State, Brazil. [PDF]

open access: yesPLoS ONE, 2012
Henochilus wheatlandii, the only species of this genus, is critically endangered and was considered extinct for over a century. The rediscovery of this fish in 1996 made it possible to study its phylogenetic relationships with other species in the ...
Priscilla C Silva   +5 more
doaj   +2 more sources

A phylogenetic analysis of Brycon and Henochilus (Characiformes, Characidae, Bryconinae) based on the mitochondrial gene 16S rRNA [PDF]

open access: yesGenetics and Molecular Biology, 2008
The genus Brycon, the largest subunit of the Bryconinae, has 42 valid species distributed from southern Mexico to the La Plata River in Argentina. Henochilus is a monotypic genus, comprising a single species (H.
Silva Hilsdorf   +3 more
doaj   +5 more sources

Metazoan endoparasites of Brycon orbignyanus (Characidae: Bryconinae) in a neotropical floodplain [PDF]

open access: yesActa Scientiarum: Biological Sciences, 2019
Species richness and composition are central themes in community ecology of helminths because they improve the understanding of factors that determine community structure.
Eliane da Silva Fernandes   +2 more
doaj   +4 more sources

Intermittent sustained swimming in 'matrinxã' Brycon amazonicus (Bryconidae: Bryconinae): hematological and metabolic responses [PDF]

open access: yesNeotropical Ichthyology, 2013
In fish, studies on a wide variety of physiological effects of exercise have been reported since a long time. It has been attributed special attention to some types of exercise, however, its application as a healthful practice in the rearing and welfare ...
Fernando Fabrizzi   +5 more
doaj   +3 more sources

Endoparasite fauna of Brycon amazonicus and B. melanopterus(Characidae, Bryconinae) from Negro and Solimões rivers, Amazon, Brazil [PDF]

open access: yesActa Amazonica, 2016
Congeneric host species present similar biological and behavioral aspects, what may favor the presence of a similar parasite fauna. The aim of the present study was to compare the composition and structure of the parasite community from congeneric ...
Thamy Santos RIBEIRO   +3 more
doaj   +3 more sources

Parasitos nas brânquias de Brycon amazonicus (Characidae, Bryconinae) cultivados em canais de igarapé do Turumã-Mirim, Estado do Amazonas, Brasil = Parasites in gills of farmed Brycon amazonicus (Characidae, Bryconinae) in stream channels of Turumã-Mirim, Amazonas State, Brazil

open access: yesActa Scientiarum: Biological Sciences, 2007
O presente estudo teve como objetivo determinar a prevalência e a intensidade de parasitos nas brânquias, bem como o fator de condição em matrinxã Brycon amazonicus Spix e Agassiz (1829) cultivados em três canais de igarapé da região do Tarumã-Mirim ...
Jefferson Raphael Gonzaga Lemos   +4 more
doaj   +4 more sources

Microsatellite variation and population genetic structure of a neotropical endangered Bryconinae species Brycon insignis Steindachner, 1877: implications for its conservation and sustainable management [PDF]

open access: yesNeotropical Ichthyology, 2009
Piabanha (Brycon insignis) is a freshwater fish species from the drainages in Southeastern Brazil. During the 1950s, it was an important economic and food resource for local populations, but dramatic and continuous environmental degradation seriously ...
Cristianne Kayoko Matsumoto   +1 more
doaj   +3 more sources

Parasitos nas brânquias de Brycon amazonicus (Characidae, Bryconinae) cultivados em canais de igarapé do Turumã-Mirim, Estado do Amazonas, Brasil - DOI: 10.4025/actascibiolsci.v29i2.593

open access: yesActa Scientiarum: Biological Sciences, 2007
O presente estudo teve como objetivo determinar a prevalência e a intensidade de parasitos nas brânquias, bem como o fator de condição em matrinxã Brycon amazonicus Spix e Agassiz (1829) cultivados em três canais de igarapé da região do Tarumã-Mirim ...
Jefferson Raphael Gonzaga Lemos   +4 more
doaj   +4 more sources

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