Consulta: subjectFacets:"Heptapteridae"
Registros recuperados: 4
Data/hora: 13/06/2024 03:17:02

Efficacy of eugenol and the methanolic extract of Condalia buxifolia during the transport of the silver catfish Rhamdia quelen
Provedor de dados: 83
Autores: Becker,Alexssandro Geferson; Cunha,Mauro Alves da; Garcia,Luciano de Oliveira; Zeppenfeld,Carla Cristina; Parodi,Thaylise Vey; Maldaner,Graciela; Morel,Ademir Farias; Baldisserotto,Bernardo.
This study evaluated extracts of Condalia buxifolia as anesthetics for the silver catfish Rhamdia quelen. The effectiveness of eugenol and of the methanolic extract (ME) of C. buxifolia during the transport of this species was also assessed. Fish of two different weights (1.50±0.02 g and 165.70±22.50 g) were transferred to aquaria containing water with the C. buxifolia ME or with fractions obtained from the ME, such as the n-hexane, dichloromethane, ethyl acetate, n-butane and aqueous fractions, at concentrations from 0-300 °L L-1. The C. buxifolia ME in the 0.5-120 °L L-1range caused only light sedation, and the fractions did not have an effect on the fish. In the second experiment, another group of fish was transported for 12 h in 15 plastic bags. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anesthesia; Fish transport; Heptapteridae; Ion fluxes; Sedative.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300675

A new species of Aphanoblastella (Monogenea: Dactylogyridae) parasitic on Rhamdia quelen (Siluriformes: Heptapteridae) from Southeastern Brazil - DOI: 10.4025/actascibiolsci.v31i3.4917
Provedor de dados: 3
Autores: Carvalho, Adriano Reder de; UFRRJ; Tavares, Luiz Eduardo Roland; UFRRJ; Luque, José Luis; UFRJ.
Aphanoblastella juizforense sp. nov. is described in the gills of the heptapterid fish Rhamdia quelen (Quoy et Gaimard, 1824) from the Paraibuna River, Juiz de Fora, Minas Gerais State, Brazil. The new species can be separated from all congeners by the long coiled copulatory organ with one counterclockwise ring; sinuous accessory piece and for the robust shape of the ventral bar.
Palavras-chave: 2.00.00.00-6    Ciências Biológicas Ancyrocephalinae; Heptapteridae; Rhamdia quelen; Aphanoblastella; Brazil Parasitologia Ancyrocephalinae; Heptapteridae; Rhamdia quelen; Aphanoblastella; Brazil.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4917

Ecomorphological differences between Rhamdia (Bleeker, 1858) populations from the Iguaçu River basin
Provedor de dados: 49
Autores: Mise,Fabio Teruo; Tencatt,Luiz Fernando Caserta; Souza,Fagner de.
Morphological and genetic evidences suggest that Rhamdia branneri and Rhamdia voulezi, currently considered synonymous of Rhamdia quelen, are in fact two valid species. Furthermore, in the taxonomic revision of R. quelen, no exemplars from the Iguaçu River were examined, which makes the synonymy doubtful. Considering the two species as valid, it was hypothesized that R. branneri and R. voulezi have ecomorphological differences, with the objective to verify if they can be considered ecologically distinct. Ecomorphological characterization was conducted using ecomorphological indices. For statistical analysis, a Principal Component Analysis (PCA), a Multiresponse Permutation Procedure (MRPP), and a Discriminant Analysis (DA) were performed. The ordination...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Endemism; Heptapteridae; Rhamdia voulezi; Rhamdia branneri; Rhamdia quelen; Ecomorphology.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000400099

Fishes community composition and patterns of species distribution in Neotropical streams
Provedor de dados: 49
Autores: Cavalheiro,Laísa Wociechoski; Fialho,Clarice Bernhardt.
Abstract: The ichthyofauna of streams in the Neotropical region is not yet fully known. This study aims to investigate the ichthyofauna composition of six streams of the Ijuí River sub-basin, Rio Grande do Sul State, inserted in the Uruguay River basin, as to contribute to the knowledge of fishes species richness and distribution in the south of Brazil. Sampling was carried out between July 2015 and May 2016, bimonthly, using the technique of electric fishing to collect the fishes. Spatial variations (per sampled stream) in the ichthyofauna composition were tested with a permutational multivariate analysis of variance. In total, we collected 5,029 individuals from 55 species, 13 families and five orders. From these species, 17 are endemic to the Uruguay...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance; Characidae; Heptapteridae; Loricariidae; Richness; Uruguay River basin.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100302