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Systematics and BiodiversityCharacidium represents the most widely distributed and species-rich fish genus within the family Crenuchidae in the Neotropical region, with numerous species described over the last decade.
Angela M. Zanata +2 more
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Chromosomal diversification in populations of Characidium cf. gomesi (Teleostei, Crenuchidae)
Journal of Fish Biology, 2010Comparative cytogenetic studies carried out in two populations of Characidium cf. gomesi from Botucatu region, SP, Brazil, showed a similar karyotypic structure in a diploid number of 50 chromosomes, 32 metacentric and 18 submetacentric chromosomes for males and 31 metacentric and 19 submetacentric chromosomes for females as well as a ZZ-ZW sex ...
Pansonato-Alves, J. C. +3 more
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A new species of Characidium (Characiformes: Crenuchidae) from the rio Madeira basin, Brazil
Journal of Fish Biology, 2020AbstractThis study describes Characidium nambiquara, a new species from the upper rio Guaporé, rio Madeira basin, Brazil. The new species differs from most congeners by the presence of isthmus and area between the contralateral pectoral‐fin bases completely naked. From congeners with some degree of scaleless ventral surface of the body C.
Angela M. Zanata, Willian M. Ohara
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Chromosome painting of Z and W sex chromosomes in Characidium (Characiformes, Crenuchidae)
Genetica, 2013Some species of the genus Characidium have heteromorphic ZZ/ZW sex chromosomes with a totally heterochromatic W chromosome. Methods for chromosome microdissection associated with chromosome painting have become important tools for cytogenetic studies in Neotropical fish. In Characidium cf.
Pazian, Marlon F. +4 more
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Characidium longum (Characiformes: Crenuchidae), a new fish from Venezuela
Zootaxa, 2006We describe a new species of Characidium Reinhardt, 1867, from tributaries of the blackwater rivers Capanaparo, Cinaruco, Caura and Casiquiare in Apure, Bolivar and Amazonas states of Venezuela. Characidium longum is diagnosed by an extremely elongate body and a unique pigmentation pattern consisting of 13 or more black vertical bars, each with a ...
DONALD C. TAPHORN B. +2 more
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Diversification of a ZZ/ZW sex chromosome system in Characidium fish (Crenuchidae, Characiformes)
Genetica, 2008Karyotype and other chromosomal markers of Characidium cf. gomesi were analyzed using conventional (Giemsa-staining, Ag-NOR and C-banding) and molecular (Fluorescent in situ hybridization (FISH) with 18S and 5S rDNA biotinylated probes) techniques.
Marcelo Ricardo, Vicari +3 more
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Diet of two syntopic species of Crenuchidae (Ostariophysi: Characiformes) in an Amazonian rocky stream [PDF]
Biota Neotropica, 2017 This study assessed the diet of two poorly known syntopic fish species of the family Crenuchidae, Characidium aff. declivirostre and Leptocharacidium omospilus, in a Presidente Figueiredo´ rocky stream, Amazonas, Brazil.
Eurizângela P. Dary +2 more
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A New Species ofCharacidium(Characiformes: Crenuchidae) from the Lower Amazon
Copeia, 2013Characidium papachibe, new species, is described from the Rio Arua, tributary of the Rio Tapajos basin, lower Amazon, State of Para, Brazil. The new species can be easily distinguished from its congeners, except C. serrano and C. heirmostigmata, by the presence of anteriorly oblique, midlateral bands centered on lateral line or just ventral thereof and
Luiz Antônio Wanderley Peixoto +1 more
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Copeia, 2015
We herein describe Characidium satoi, new species, only known from its type locality at Rio Curral das Eguas, a small tributary of Rio Abaete, in the Rio Sao Francisco basin, Brazil. It can be distinguished from its congeners by the following characteristics: area between the pelvic fin and the origin of anal fin moderate to strongly convex in lateral ...
Marcelo R. S. Melo, Osvaldo T. Oyakawa
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We herein describe Characidium satoi, new species, only known from its type locality at Rio Curral das Eguas, a small tributary of Rio Abaete, in the Rio Sao Francisco basin, Brazil. It can be distinguished from its congeners by the following characteristics: area between the pelvic fin and the origin of anal fin moderate to strongly convex in lateral ...
Marcelo R. S. Melo, Osvaldo T. Oyakawa
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Copeia, 2002
Abstract A new species of Characidium is described from tributaries of the rio Parana (Tocantins drainage), in Goias State, central Brazil. Characidium stigmosum is diagnosed by the presence of dark marks along the sides of the body, which are associated with the vertical bars that occur in most species of Characidium.
Marcelo Roberto Souto de Melo +1 more
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Abstract A new species of Characidium is described from tributaries of the rio Parana (Tocantins drainage), in Goias State, central Brazil. Characidium stigmosum is diagnosed by the presence of dark marks along the sides of the body, which are associated with the vertical bars that occur in most species of Characidium.
Marcelo Roberto Souto de Melo +1 more
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