Results 41 to 50 of about 12,739 (216)

Actinopterygii, Characiformes, Characidae: Ectrepopterus uruguayensis (Fowler, 1943): New record for Argentina [PDF]

, 2013
Ectrepopterus uruguayensis Fowler was recently redescribed, with occurrence in lower tributaries of Río de la Plata and lower Río Uruguay, Uruguay. Herein its occurrence is extended and confirmed to Argentina, arroyo El Molino, in Uruguay Department ...
Carvalho, Fernando R., Miquelarena, Amalia Maria   +1 more
core   +2 more sources

Desenvolvimento larval de Brycon hilarii (Characiformes, Characidae) [PDF]

Iheringia. Série Zoologia, 2012
O presente estudo caracterizou o desenvolvimento inicial de Brycon hilarii (Valenciennes, 1850) através de caracteres morfométricos e merísticos e analisou as relações entre as características morfométricas das larvas ao longo do desenvolvimento usando modelos de regressão linear, quadrática e linear por partes.
Oliveira, Fernando G. de, Bialetzki, Andréa, Gomes, Luiz C., Santin, Miriam, Taguti, Tátia L.   +4 more
openaire   +4 more sources

Une nouvelle espèce de Bryconexodon (Pisces, Characidae) décrite du bassin du Trombetas (Para, Brésil) [PDF]

, 1991
Une nouvelle espèce du genre #Bryconexodon$ Géry (#Pisces$, #Characidae$) est décrite du cours supérieur du Rio Trombetas (Para, Brésil). #Bryconexodon$ n. sp. est très voisine de #B.
Dos Santos, G.M., Ferreira, E., Jégu, Michel   +2 more
core   +1 more source

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   +4 more sources

Caracterização do sêmen de tambaqui (Colossoma macropomum) durante período reprodutivo

Revista de Ciências Agroveterinárias, 2018
Objetivou-se com o presente trabalho caracterizar qualitativamente e quantitativamente o sêmen de tambaqui durante o período reprodutivo. Foram realizadas três coletas, com intervalos regulares de aproximadamente 30 dias no período reprodutivo de 2012 ...
Dayane Regina Lenz, André de Moura Victorio, Mayanny Carla Carvalho Lima, Tayrone Freitas Prado, Fernanda Gomes de Paula, Maria Lucia Gambarini Meirinhos, Emmanuel Arnhold   +6 more
doaj   +1 more source

Seasonality of nematode larvae in Iguanodectes spilurus (Characidae) an ornamental fish from northeastern Para, Brazil [PDF]

Acta Amazonica, 2013
The current study presents a parasitological survey of larval nematodes from freshwater ornamental fish Iguanodectes spilurus caught in the watercourse of the Caete River, in the northeast region of the State of Para, Brazil.
Rodrigo Yudi Fujimoto, Ellem Cristina Silva dos Anjos, Fabrício Menezes Ramos, Maurício Laterça Martins   +3 more
doaj   +1 more source

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

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

Journal of Fish Biology, EarlyView.
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert, João C. Maicrovicz, Daniel R. Blanco, Denise Lange, Carla S. Pavanelli, Heleno Brandão   +5 more
wiley   +1 more source

FISHES (Actinopteri, Characiformes) FROM THE TAPYTA RESERVE WITH THREE NEW ADDITIONS TO THE PARAGUAYAN ICHTHYOFAUNA

Acta Biológica Colombiana, 2022
The Characiform fish species from the Tapyta Reserve and surrounding area, Caazapa, Paraguay, were inventoried during a year with electrofishing, netting, and trapping. A total of 20 species were registered, being Characidae the richest family.
Héctor Samuel Vera-Alcaraz, Braulio Luis Rojas   +1 more
doaj   +1 more source

A phylogenetic analysis of Brycon and Henochilus (Characiformes, Characidae, Bryconinae) based on the mitochondrial gene 16S rRNA [PDF]

, 2008
The genus Brycon, the largest subunit of the Bryconinae, has 42 valid species distributed from southern Mexico to the La Plata River in Argentina. Henochilus is a monotypic genus, comprising a single species (H.
HILSDORF, Silva, LIMA, Flávio César Thadeo de, MATSUMOTO, Cristianne Kayoko, OLIVEIRA, Claudio   +3 more
core   +2 more sources