Results 41 to 50 of about 18,439 (295)
Acta Scientiarum: Biological Sciences, 2012 There are evidences that Bryconamericus aff. iheringii represents a species complex. DNA molecular markers have been effective in studies on phylogeny, taxonomy, and identification of cryptic species. In this study, partial sequences of genes of ATPase 6
Camila Montoro Mazeti +3 more
doaj +1 more source
Divergence times of the Rhoadsia clade (Characiformes: Characidae)
Neotropical Ichthyology, 2022 Abstract The family Characidae is the most diverse group of fishes in the Neotropics with challenging systematics. The three genera Carlana, Parastremma, and Rhoadsia, formerly considered the subfamily Rhoadsiinae, are now included in the subfamily Stethaprioninae.
Roberto V. Cucalón, Milton Tan
openaire +3 more sources
First record of Astyanax puka Mirande, Aguilera & Azpelicueta, 2007 (Teleostei: Characidae) in Juramento River basin, Salta, Argentina [PDF]
, 2014 Astyanax puka was described from the endorheic Río Salí basin, Argentina, and it was not previously recorded elsewhere, being considered until now as endemic from that basin.
Aguilera, Gaston +2 more
core +1 more source
New cases of supernumerary chromosomes in characiform fishes [PDF]
Genetics and Molecular Biology, 1999 Supernumerary chromosomes were described for five species of Neotropical characiform fishes. These extra chromosomes were small, acrocentric and fully heterochromatic in Leporinus friderici from two different localities as well as in Leporinus sp., but metacentric and fully heterochromatic in Cyphocharax modesta and Prochilodus nigricans.
Venere, Paulo Cesar +2 more
openaire +5 more sources
Illustrated list of additions to the ichthyofauna of the Caura River, Venezuela [PDF]
Check List, 2012 Twenty nine species have been added to the annotated checklists of the ichthyofauna of the Caura River Basin, Guiana Shield, Venezuela. Of these, 18 were found in two floodplain lagoons in the lower Caura, corresponding to the orders Characiformes ...
Nirson González +3 more
doaj +3 more sources
The piranha genome provides molecular insight associated to its unique feeding behavior [PDF]
, 2019 The piranha enjoys notoriety due to its infamous predatory behavior but much is still not understood about its evolutionary origins and the underlying molecular mechanisms for its unusual feeding biology.
Adolfi, Mateus +9 more
core +2 more sources
Taxonomic revision of Galeocharax (Characiformes: Characidae: Characinae) [PDF]
Neotropical Ichthyology, 2017 ABSTRACT The taxonomy of Galeocharax, a genus of freshwater fishes distributed in most South American cis-Andean river systems, except the rio Negro, rio São Francisco and rio Xingu basins and the eastern drainages of Brazil, is herein revised. A total of 1229 specimens were examined from which 680 had meristic and morphometric data taken. Osteological
Giovannetti, Victor +2 more
openaire +5 more sources
First record of Jupiaba acanthogaster (Eigenmann, 1911) (Ostariophysi, Characidae) in the upper Paraná river basin, Brazil [PDF]
Check List, 2020 Jupiaba Zanata, 1997 is a genus with small species within Characidae, identified by a pair of modified bones in the form of spines just anteriorly to pelvic-fin base. The genus is mostly distributed throughout the Amazon drainage, except J. acanthogaster
Douglas Alves Lopes +3 more
doaj +3 more sources
Brazilian Archives of Biology and Technology, 2007 The cytogenetic data available in the literature about the ichthyofauna of the Iguaçu River basin were analyzed in this review. The ichthyofauna was characterized by the high level of endemism and by the low diversity of species.
Daniel Luis Zanella Kantek +4 more
doaj +1 more source
, 2019 Characiformes Anostomidae Leporinus obtusidens (Valenciennes) Acanthocephala fam. gen. sp. Bryconidae Salminus brasiliensis (Cuvier) Acanthocephala fam. gen. sp. Characidae Cheirodon interruptus (Jenyns) Polymorphus sp. Hyphessobrycon meridionalis Ringuelet, Miquelarena & Menni Wolffhugelia matercula Curimatidae Steindachnerina biornata (Braga ...
Hernández-Orts, Jesús S. +5 more
openaire +1 more source