Results 31 to 40 of about 12,739 (216)

O efeito da floresta alagada na alimentação de três espécies de peixes onívoros em lagos de várzea da Amazônia Central, Brasil Effects of flooded forest in the diet of three fish species in floodplain lakes of Central Amazon, Brazil

Acta Amazonica, 2004
As enchentes anuais dos rios na Amazônia alagam extensas áreas de floresta conhecidas como várzeas ou igapós. Estas áreas têm papel importante na vida dos peixes da região, pois são fontes de alimento e de abrigo.
Luiz Claro-Jr, Efrem Ferreira, Jansen Zuanon, Carlos Araujo-Lima   +3 more
doaj   +1 more source

Os crustáceos parásitos de peixes da Amazonia Brasileira. I-Ergasilus bryconis n. sp. (Copepoda: Cyclopoidea) da matrinchã (Brycon melanopterus (Cope)) [PDF]

Acta Amazonica, 1981
Resumo Uma nova espécie de crustáceo — Ergasilus bryconis n. sp. — é descrita parasitando um peixe amazôco chamado matrinchã [Characidae: Brycon melanopterus (Cope)].
Vernon E. Thatcher
doaj   +1 more source

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, Mirande, Juan Marcos, Teran, Guillermo Enrique   +2 more
core   +1 more source

Astyanax pampa (Characiformes, Characidae), a

Revue suisse de zoologie, 2005
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Jorge R. Casciotta, Adriana. Almirón, María de las Mercedes. Azpelicueta   +2 more
openaire   +1 more source

B Chromosomes in Psalidodon scabripinnis (Characiformes, Characidae) Species Complex

Animals, 2022
B chromosomes are extra-genomic components of cells found in individuals and in populations of some eukaryotic organisms. They have been described since the first observations of chromosomes, but several aspects of their biology remain enigmatic.
Duílio M. Z. A. Silva, Jonathan P. Castro, Caio A. G. Goes, Ricardo Utsunomia, Mateus R. Vidal, Cristiano N. Nascimento, Lucas F. Lasmar, Fabilene G. Paim, Letícia B. Soares, Claudio Oliveira, Fábio Porto-Foresti, Roberto F. Artoni, Fausto Foresti   +12 more
openaire   +4 more sources

Species delimitation of neotropical Characins (Stevardiinae): Implications for taxonomy of complex groups.

PLoS ONE, 2019
Accurate species delimitation is crucial for studies of phylogeny, phylogeography, ecology, conservation and biogeography. The limits of species and genera in the Characidae family are controversial due to its uncertain phylogenetic relationships, high ...
Jorge E García-Melo, Claudio Oliveira, Guilherme José Da Costa Silva, Luz E Ochoa-Orrego, Luiz Henrique Garcia Pereira, Javier A Maldonado-Ocampo   +5 more
doaj   +1 more source

First record of Hysterothylacium sp. Moravec, Kohn et Fernandes, 1993 larvae (Nematoda: Anisakidae) infecting the ornamental fish Hyphessobrycon eques Steindachner, 1882 (Characiformes, Characidae)

Brazilian Journal of Biology
This study reports for the first time infection with Hysterothylacium sp. larvae in the ornamental fish Hyphessobrycon eques from the Paranapanema River, Jurumirim Reservoir, São Paulo State, Brazil. A sample of 33 specimens of H.
AA Acosta, RJ Silva
doaj   +1 more source

Metazoan parasites of the lambari Astyanax altiparanae collected in the Batalha River, State of São Paulo, Brazil

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, V. D. Abdallah, R. K. Azevedo   +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, Orlando Moreira-Filho   +1 more
openaire   +1 more source

INFLUENCIAS DE UN RELLENO SANITARIO SOBRE LA COMPOSICIÓN, ABUNDANCIA Y DISPERSIÓN DIURNA DE LOS PECES EN LA QUEBRADA EL VENADO, CORREGIMIENTO DE CÓRDOBA, MUNICIPIO DE BUENAVENTURA (VALLE DEL CAUCA, COLOMBIA)

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., Maicol Ramírez, Efraín A. Rubio R.   +2 more
doaj   +1 more source