Results 1 to 10 of about 1,613 (195)

The complete mitochondrial genome of Sorubim Lima (Siluriformes, Pimelodidae) [PDF]

Mitochondrial DNA. Part B. Resources, 2019
The complete mitochondrial DNA genome of Sorubim lima was first reported by next-generation sequencing method. The entire length of mitochondrial genome is 16,539 bp and the nucleotide composition was made up of 32.1% A, 24.9% T, 28.0% C, and 15.0% G ...
Fang Ren, Xiuhui Ma
doaj   +7 more sources

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 Dias, Ana Claudia Swarça, Dias Ana Lucia   +2 more
exaly   +8 more sources

Taxonomy and systematics of 2 new species of myxozoans (Cnidaria: Myxobolidae) parasitizing the gills of Iheringichthys labrosus (Teleostei: Pimelodidae) from southeastern Brazil [PDF]

Parasitology
During a survey of myxozoan infections in fishes from the Pardo River, Paranapanema River basin, São Paulo State, Brazil, 2 new species – Henneguya avareensis n. sp. and Myxobolus iheringichthys n. sp.
Diego Henrique Mirandola Dias Vieira, Maria João Santos, Sónia Rocha, Luis Filipe Rangel, Rodrigo Bravin Narciso, Reinaldo José da Silva   +5 more
doaj   +2 more sources

Hybridization, Maternal Inheritance, and Evolutionary Time of Divergence of Endangered Species of <i>Hypancistrus</i> (Siluriformes: Loricariidae) in the Xingu River. [PDF]

Ecol Evol
We uncover recent hybridization dynamics among three endemic Hypancistrus species from the Xingu River, including the critically endangered H. zebra. Mitogenomic analyses reveal unidirectional maternal inheritance and recent evolutionary radiation (< 0.5 Ma), explaining their retained reproductive compatibility.
Kerniske FF, Melo BF, Sousa LM, Degrandi TM, Artoni RF.   +4 more
europepmc   +2 more sources

Molecular phylogeny reveals a new species of ghost electric knifefish Porotergus Ellis 1912 (Gymnotiformes: Apteronotidae), from the Amazon basin. [PDF]

J Fish Biol
Abstract A new species of ghost electric knifefish, Porotergus sambaibensis sp. nov., is described from the Javaés River, a tributary of the Araguaia River in Brazil. The new species was assigned to the genus Porotergus as the closest relative to Porotergus gimbeli through maximum likelihood reconstruction of a concatenated multilocus dataset ...
Mendonça MB, Peixoto LAW, Chamon CC, Akama A, de Santana CD.   +4 more
europepmc   +2 more sources

Integrative morphometric and molecular analyses reveal possible genetic contamination of silver catfish populations of the genus Rhamdia in Neotropical River basins. [PDF]

J Fish Biol
Abstract Rhamdia quelen, Rhamdia branneri and Rhamdia voulezi are morphologically similar species that, until recently, were considered synonymous. Although R. quelen has wide distribution in the Neotropical region, R. branneri and R. voulezi are sympatric and endemic species of the Iguaçu River basin.
Bignotto TS, de Souza HB, da Silva Bronzim RC, Maniglia TC, Baumgartner D.   +4 more
europepmc   +2 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

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

Parâmetros eritrocitários do jundiá (Rhamdia quelen) submetido à dieta com diferentes níveis de proteína [PDF]

Ciência Rural, 2005
O jundiá é espécie de interesse econômico para região sul do Rio Grande do Sul, pois adapta-se a diferentes ambientes e dietas artificiais, apresentando fácil manejo e boa aceitação comercial.
Sabrina Ortiz Camargo, Juvêncio Luís Pouey, Clarice Martins   +2 more
doaj   +1 more source

Fish, Marmelos Conservation Area (BX044), Madeira River basin, states of Amazonas and Rondônia, Brazil. [PDF]

Check List, 2007
The present study provides a species list of fish from the Marmelos River Area – BX044 in the states ofAmazonas and Rondônia in northern Brazil. During a Rapid Ecological Assessment (REA) performed in October andNovember of 2003, 133 fish species from ...
Camargo, M., Giarrizzo, T.
doaj   +4 more sources