Results 41 to 50 of about 12,829 (213)
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
Brazilian Journal of Biology, 2017 Here we conduct a qualitative and quantitative analysis of ectoparasites and endoparasites of Astyanax altiparanae (Garutti & Britski, 2000), popularly known as lambari-do-rabo-amarelo collected from the Batalha River, State of São Paulo, Brazil.
D. C. Negrelli +2 more
doaj +1 more source
B chromosomes in Astyanax scabripinnis (Pisces, Characidae) [PDF]
Heredity, 1992 A karyotypic analysis was carried out using conventional staining and C-banding in 32 specimens of Astyanax scabripinnis (Pisces, Characidae) from Campos do Jordao (Sao Paulo State, Brazil). Twenty-eight individuals (87.5 per cent of the sample studied) showed 1–2 extra B-chromosomes, similar in size and shape (metacentrics) to pair 1 of the karyotype,
Lara Bellintani Salvador +1 more
openaire +1 more source
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 +4 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 +6 more
doaj +1 more source
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2023 En 2009, se estudió la composición, abundancia y dispersión diurna de los peces presentes en la quebrada El Venado, ubicada en el corregimiento de Córdoba, municipio de Buenaventura, Valle del Cauca, Colombia. La quebrada es uno de los afluentes del río
Carlos E. Fernández M. +2 more
doaj +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 +2 more
openaire +4 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
Journal of Fish Biology, EarlyView.Abstract A new species of Hyphessobrycon is described from a tributary of Rio Jatuarana, lower Rio Aripuanã basin, Rio Madeira basin, Apuí, Amazonas. The new species is part of the Hyphessobrycon agulha lineage, with the typical midlateral narrow black stripe immediately followed dorsally by an iridescent stripe.
Tiago C. Faria +3 more
wiley +1 more source
CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina [PDF]
, 2017 In May 2016 we have published the second update to CLOFFAR and in these few months a total of 22 changes have summed up. The total number of fishes known from the freshwaters of Argentina has increased to 538, caused by one new Hoplias and 13 first ...
Koerber, Stefan +2 more
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