Results 21 to 30 of about 525 (136)

Comparative chromosomal analysis and evolutionary considerations concerning two species of genus Tatia (Siluriformes, Auchenipteridae) [PDF]

Comparative Cytogenetics, 2013
Auchenipteridae is divided in two subfamilies, Centromochlinae and Auchenipterinae. Centromochlinae has 31 valid species, from which 13 are included in the genus Tatia Miranda Ribeiro, 1911.
Roberto Lui, Daniel Blanco, Vladimir Margarido, Waldo Troy, Orlando Moreira Filho   +4 more
doaj   +4 more sources

Clave artificial de las familias de peces del río Magdalena [PDF]

Caldasia, 1942
Patamotrygonidae / Ageneiosidae / Pimelodidae / Auchenipteridae / Bunocephalidae / Cetopsidae /  Pygidiidae / Astroblepidae / Doradidae / Loricariidae / Callichthyidae / Characidae / Erythrinidae / Cyprinodotitidae / Poeciliidae / Sciaenidae / Cichlidae /
Miles Cecil
doaj   +1 more source

Hidden diversity of the catfish genus Trachelyichthys (Siluriformes: Auchenipteridae): a revisionary study with description of four new species from the Amazon basin

Neotropical Ichthyology
Auchenipteridae is widely distributed across South America and encompasses 129 valid species. Trachelyichthys is diagnosed from all remaining auchenipterids by 14 morphological synapomorphies and comprises six species, T.
Bárbara B. Calegari, Alberto Akama, Carl Ferraris Jr., Roberto E. Reis   +3 more
doaj   +2 more sources

Cytogenetic analysis of sympatric Trachelyopterus Valenciennes 1840 (Siluriformes, Auchenipteridae) species reveals highly conserved karyotypes despite the geographic distance [PDF]

Caryologia, 2023
Trachelyopterus Valenciennes 1840 species exhibit striking morphological and cytogenetic similarities, leading to persistent taxonomic challenges. This research focuses on Trachelyopterus galeatus Linnaeus 1766 and Trachelyopterus porosus Eigenmann ...
Denise Felicetti, Chrystian Aparecido Grillo Haerter, Lucas Baumgärtner, Leonardo Marcel Paiz, Daniel Rodrigues Blanco, Eliana Feldberg, Vladimir Pavan Margarido, Maelin Silva, Roberto Laridondo Lui   +8 more
doaj   +2 more sources

DNA barcoding uncovers two putative new species in Trachelyopterus (Siluriformes: Auchenipteridae)

Journal of Fish Biology, Volume 109, Issue 3, Page 1856-1865, September 2026.
Abstract Trachelyopterus is a cryptic genus within the Neotropical catfish family Auchenipteridae with a complex history of taxonomic revisions. Despite the notable morphological and genetic similarities among its species, some studies suggest that the genus harbours greater diversity than is currently recognized, including additional species yet to be
Fiorindo José Cerqueira, Maelin da Silva, Chrystian Aparecido Grillo Haerter, Sandra Mariotto, Liano Centofante, Eliana Feldberg, Orlando Moreira Filho, Vladimir Pavan Margarido, Daniel Rodrigues Blanco, Roberto Laridondo Lui   +9 more
wiley   +3 more sources

Contributions to the taxonomy of Trachelyopterus (Siluriformes): comparative cytogenetic analysis in three species of Auchenipteridae [PDF]

Neotropical Ichthyology, 2021
Auchenipteridae is divided into subfamilies Centromochlinae and Auchenipterinae. Parauchenipterus is included in the latter and is subject of taxonomic discussions concerning its validation or synonymization with Trachelyopterus.
Dayane Petik dos Santos, Denise Felicetti, Lucas Baumgärtner, Vladimir Pavan Margarido, Daniel Rodrigues Blanco, Orlando Moreira-Filho, Roberto Laridondo Lui   +6 more
doaj   +6 more sources

A variant W chromosome in Centromochlus heckelii (Siluriformes, Auchenipteridae) and the role of repeated DNA in its heteromorphism [PDF]

Genetics and Molecular Biology
Centromochlus heckelii has the lowest diploid chromosome number (2n = 46) and the only described heteromorphic sex chromosome system in Auchenipteridae. This study presents a population of C.
Chrystian Aparecido Grillo Haerter, Patrik Ferreira Viana, Fábio Hiroshi Takagui, Sandro Tonello, Vladimir Pavan Margarido, Daniel Rodrigues Blanco, Josiane Baccarin Traldi, Roberto Laridondo Lui, Eliana Feldberg   +8 more
doaj   +3 more sources

A new species of Demidospermus Suriano, 1983 (Monogenea) parasite of gills of Auchenipterus osteomystax (Auchenipteridae), from the upper Paraná river floodplain, Brazil = Uma nova espécie de Demidospermus Suriano, 1983 parasita de brânquias de Auchenipterus osteomystax da planície de inundação do alto rio Paraná

Acta Scientiarum: Biological Sciences, 2010
A new species of Demidospermus Suriano, 1983 is described from the gills of Auchenipterus osteomystax Miranda-Ribeiro, 1918 (Auchenipteridae), collected in the upper Paraná river floodplain, Brazil.
Fernando de Castro Tavernari, Ricardo Massato Takemoto, Ana Carolina Figueiredo Lacerda, Gilberto Cezar Pavanelli   +3 more
doaj   +1 more source

Karyotypic variation of Glanidium ribeiroi Haseman, 1911 (Siluriformes, Auchenipteridae) along the Iguazu river basin

Brazilian Journal of Biology
The Iguazu river is a tributary of the left margin of the Paraná river, isolated from this basin about 22 million years ago with the appearance of the Iguazu Falls.
R. L. Lui, D. R. Blanco, J. B. Traldi, V. P. Margarido, O. Moreira-Filho   +4 more
doaj   +2 more sources

Aspectos ecológicos de la fauna íctica dominante en la Laguna Yahuarcaca, Leticia (Amazonía colombiana)

Acta Biológica Colombiana, 2000
Four fish samplings taken during one year in the Laguna Yahuarcaca, located close to Leticia(Colombia) and formed by meanders of the Amazon River, were analyzed.
Marisol Santos Acevedo, German Galvis Vergara   +1 more
doaj   +1 more source