Results 81 to 90 of about 722 (134)

Two new species of Astyanax (Ostariophysi: Characiformes: Characidae) from eastern Brazil, with a synopsis of the Astyanax scabripinnis species complex

Neotropical Ichthyology
Two new species of Astyanax are described from eastern Brazil: A . microschemos from the córrego Palmital, rio Itapemirim drainage, Espírito Santo, and A . pelecus from the rio Pardo drainage, Bahia.
Vinicius A. Bertaco, Carlos A. S. de Lucena   +1 more
doaj   +1 more source

Phylogenetic relationships of the enigmatic Carlastyanax aurocaudatus (Eigenmann) with remarks on the phylogeny of the Stevardiinae (Teleostei: Characidae)

Neotropical Ichthyology
The monotypic genus Carlastyanax Géry was defined to include Astyanax aurocaudatus, a morphologically odd species having, among other features, four teeth in the posterior premaxillary row and eight branched dorsal-fin rays. Later on, the characters used
Juan Marcos Mirande, Fernando Camargo Jerep, James Anyelo Vanegas-Ríos   +2 more
doaj   +1 more source

Physical mapping of the 18S and 5S ribosomal genes in nine Characidae species (Teleostei, Characiformes)

Genetics and Molecular Biology, 2008
Characidae is one of the largest fish families of the Neotropical region, and presenting a pronounced morphological variability, certainly does not constitute a monophyletic group.
Wellington Adriano Moreira Peres, Luiz Antonio Carlos Bertollo, Orlando Moreira Filho   +2 more
doaj   +1 more source

Astyanax rutilus

, 2010
Autapomorphies of Astyanax cf. rutilus: 1. Separation between posterior dentary teeth (147): (0> 1) more than width of these teeth. Paralleled in node 221 and in Aulixidens eugeniae and Pristella maxillaris. 2. Posterior extent of ventral process of quadrate (151): (0> 1) falling short of posterior margin of symplectic. Paralleled in the Hyphessobrycon
openaire   +2 more sources

Ecomorphology of Astyanax species in streams with different substrates

Zoologia (Curitiba), 2014
In the present study, we assessed the ecomorphology of two species of Astyanax in streams with different substrates found in the Rio São Francisco Basin.
Marcela A. Souza, Daniela C. Fagundes, Cecília G. Leal, Paulo S. Pompeu   +3 more
doaj   +1 more source

A new species of Astyanax (Characiformes: Characidae) from the rapids of the lower rio Xingu, Brazil

Neotropical Ichthyology
Astyanax dnophos, new species, is described from the lower rio Xingu, Pará, Brazil. The new species is distinguished from its purported congeners by the presence of a broad longitudinal, midlateral dark stripe that extends from the snout to the caudal ...
Flávio C.T. Lima, Jansen Zuanon
doaj   +1 more source

Astyanax abramis

Astyanax abramis (Jenyns 1842) Distribution Upper Amazon. Notes Barriga (1994), Valdiviezo-Rivera et al. (2018).
Escobar-Camacho, Daniel, Valdiviezo-Rivera, Jonathan, Carrillo-Moreno, Carolina, Argüello, Pablo, Swing, Kelly   +4 more
openaire   +2 more sources

Níveis de energia digestível e proteína bruta em rações para alevinos de lambari tambiú Dietary levels of digestible energy and crude protein for lambari tambiú fingerlings

Revista Brasileira de Zootecnia, 2006
Com o objetivo de determinar os níveis de energia digestível (ED) em função do nível de proteína bruta (PB) da ração para alevinos de lambari tambiú (Astyanax bimaculatus), foram utilizados 600 peixes com 1,30 ± 0,01 g, distribuídos em 40 aquários
Jorge Luiz Vieira Cotan, Eduardo Arruda Teixeira Lanna, Marcos Antonio Delmondes Bomfim, Juarez Lopes Donzele, Felipe Barbosa Ribeiro, Moacyr Antonio Serafini   +5 more
doaj   +1 more source

Astyanax maximus

Astyanax maximus (Steindachner 1876) Distribution Upper Amazon, Orinoco. Notes Barriga (1994), Escobar-Camacho et al. (2015).
Escobar-Camacho, Daniel, Valdiviezo-Rivera, Jonathan, Carrillo-Moreno, Carolina, Argüello, Pablo, Swing, Kelly   +4 more
openaire   +2 more sources

Astyanax guaricana (Ostariophysi: Characidae), a new species from the rio Cubatão drainage, Paraná State, Southern Brazil

Neotropical Ichthyology
In this paper we describe a new species of Astyanax collected in the Atlantic Rainforest, in tributaries to the rio Cubatão, coastal basin of the Paraná State, Brazil. The new species presents a combination of characters that allows its allocation in the
Carlos A. M. Oliveira, Vinicius Abilhoa, Carla S. Pavanelli   +2 more
doaj   +1 more source