Results 31 to 40 of about 15,184 (259)

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, Miyazawa, Carlos Suetoshi, Galetti Junior, Pedro Manoel   +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, Gabriela Echevarría, Felix Daza, Francis Mass   +3 more
doaj   +3 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, Toledo-Piza, Mônica, Menezes, Naércio A.   +2 more
openaire   +5 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, Fischer, Petra, Kneitz, Susanne, Meyer, Axel, Minx, Patrick, Schartl, Manfred, Schmidt, Cornelia, Tomlinson, Chad, Volkoff, Helene, Warren, Wesley C   +9 more
core   +2 more sources

Cytotaxonomic and evolutionary considerations about karyotipic data of fishes from the Iguaçu River Basin in South of Brazil

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, Roger Raupp Cipriano, Vinícius Abilhoa, Roberto Ferreira Artoni, Marta Margarete Cestari   +4 more
doaj   +1 more source

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, Thiago T. M. Taveira, Francisco Severo-Neto, Fernando R. Carvalho   +3 more
doaj   +3 more sources

Characiformes

, 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., Kuchta, Roman, Semenas, Liliana, Crespo, Enrique A., González, Raúl A., Aznar, Francisco J.   +5 more
openaire   +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

Zygoparity in Characidae - the first case of internal fertilization in the teleost cohort Otomorpha [PDF]

Neotropical Ichthyology, 2020
Most teleosts are externally fertilizing, with internal fertilization occurring as a relatively rare event. Until now, Euteleosteomorpha is the only teleost cohort known to undergo internal fertilization.
Clayton Kunio Fukakusa, Talita Sarah Mazzoni, Luiz Roberto Malabarba   +2 more
doaj   +1 more source

Characiformes

, 2008
Order Characiformes Family Anostomidae Leporinus friderici Kritskyia eirasi (BR) Leporinus lacustris Kritskyia eirasi (BR) Leporinus obtusidens Urocleidoides paradoxus (AR) Family Characidae Astyanax fasciatus Palombitrema heteroancistrium (AR) Brycon cephalus Annulotrematoides bryconi (BR) Brycon sp ...
Cohen, Simone C., Kohn, Anna
openaire   +1 more source