Results 11 to 20 of about 5,672 (255)

Cytogenetics of species of the families Pimelodidae and Rhamdiidae (Siluriformes) [PDF]

Genetics and Molecular Biology, 2000
Only 33 species among about 300 belonging to the families Pimelodidae and Rhamdiidae have been studied cytogenetically. The diploid number varies from 2n = 46 to 2n = 63 chromosomes, with the karyotypes often being of the meta/submetacentric type.
Ana Lúcia Dias
exaly   +6 more sources

Karyotype variability in neotropical catfishes of the family Pimelodidae (Teleostei: Siluriformes) [PDF]

Neotropical Ichthyology, 2011
Karyotypic data are presented for four species of fish belonging to the Pimelodidae family. These species show a conserved diploid number, 2n = 56 chromosomes, with different karyotypic formulae.
Daniele Aparecida Matoso, Marcelo R Vicari, Mara Cristina de Almeida   +2 more
exaly   +8 more sources

Lethal temperatures for Rhamdia quelen larvae (Pimelodidae) Temperaturas letais de larvas de Rhamdia quelen (Pimelodidae) [PDF]

Ciência Rural, 2000
The lower and upper lethal temperatures (LT50) of R. quelen larvae were determined. The larvae were obtained from two spawning periods with hatching temperatures of 21 and 26ºC respectively.
Adriana Regina Chippari-Gomes, Levy Carvalho Gomes, Bernardo Baldisserotto   +2 more
doaj   +5 more sources

Estudio preliminar de ictioplancton de la Amazonia peruana con énfasis en la familia Pimelodidae

Revista Peruana de Biología, 2013
En el presente trabajo se informa y describen las larvas de peces presentes en la naciente del río Madre de Dios, con énfasis en la familia Pimelodidae. Las colectas se realizaron entre noviembre y diciembre de 2004, utilizando una red de ictioplancton
María Rojas, Robinson Olivera, Roberto Quispe, Hernán Ortega   +3 more
doaj   +3 more sources

Revision of genus Steindachneridion (Siluriformes: Pimelodidae) [PDF]

Neotropical Ichthyology, 2005
After several years collecting in the type-localities and studying representative samples of genus Steindachneridion Eigenmann & Eigenmann, 1919 from Brazilian and foreign museums, a taxonomic revision of the Recent species of the genus is presented ...
Julio Cesar Garavello
doaj   +4 more sources

Cytogenetic characterization through chromosomic banding of Pinirampus pirinampu (Pisces, Pimelodidae) from the Tibagi river basin PR/Brazil [PDF]

Hereditas, 1999
Cytogenetic studies of three species of the Pimelodidae family were carried out. The results showed a diploid chromosome number of 2n = 46 for Pimelodellu spl, 2n = 52 for Pimelodellu sp2 and 2n = 50 for Pinirampus pirinumpu. Chromosome polymorphism was detected by of G-banding analysis in Pimeladella spl and by C-banding in P. pirinampu.
Ana Claúdia Swarça, Lúcia Giuliano-Caetano, Ana Lúcia Dias   +2 more
  +8 more sources

Analysis of the nucleolus organizer regions in 5 species of the genusPimelodus(Siluriformes, Pimelodidae), using AgNO₃, CMA₃and FISH with the 18S rDNA probe

Folia biologica, 2004
A cytogenetic study was conducted on two species of the genus Pimelodus that were collected from the Piquiri river, Paraná, Brazil: Pimelodus paranaensis and Pimelodus heraldoi. Both had a diploid number of 2n=56 chromosomes and a fundamental number (FN) of 104. In P.
Lenice de Souza, Ana Claúdia Swarça, Ana Lúcia Dias   +2 more
openalex   +3 more sources

Diet of Lontra longicaudis (Carnivora: Mustelidae) in a pool system in Atlantic Forest of Minas Gerais State, southeastern Brazil=Dieta de Lontra longicaudis (Carnivora: Mustelidae) em um sistema de poções na Floresta Atlântica do Estado de Minas Gerais, sudeste do Brasil [PDF]

Acta Scientiarum: Biological Sciences, 2012
The present study aimed to investigate the feeding habits of Lontra longicaudis in a pool system within the Private Reserve of Natural Patrimony (RPPN) Usina Maurício, located in Paraíba do Sul river basin, Atlantic Forest of southeastern Minas Gerais ...
Fernando Marques Quintela, Emmanuel de Melo Nascimento, Fabiano Aguiar da Silva   +2 more
doaj   +1 more source

Is there hidden genetic variability in the species of <i>Steindachneridion</i> Garavello, 2005 (Siluriformes: Pimelodidae)? [PDF]

PeerJ
Background The genus Steindachneridion, which includes large-sized freshwater pimelodid species, is endemic to the southeastern coastal drainages of South America, specifically the Paraná River and Uruguay River basins.
Matoso DA, da Silva HCM, Ferreira Júnior AL, Porto-Foresti F, Utsunomia R, do Prado FD, Artoni RF.   +6 more
europepmc   +4 more sources

Chromobacterium violaceum (Schröter 1872) isolated from the aquatic environment associated with the fish culture of Jaú, Zungaro jahu (Ihering, 1898) (Siluriformes, Pimelodidae)

Bioscience Journal, 2017
The jau, Zungaro jahu (Ihering, 1898) is an endangered species, rheophilic, reaching 1.5 m and more than 100 kg. During a work of microbiological monitoring of water quality, in the cultivation of Zungaro jahu, microorganisms that were isolated, were ...
Renato Ventresqui de Oliveira, Natália Conceição, Douglas de Castro Ribeiro, Fagner de Souza, Maria das Graças Reis, Marcelo Mattos Pedreira, Paulo Roberto da Silva, Afonso Pelli   +7 more
doaj   +1 more source