Results 1 to 10 of about 39 (31)

Reproductive biology of a characidiinae (osteichthyes, characidae) from the Ubatiba river, Maricá -- RJ [PDF]

Brazilian Journal of Biology, 2002
The Ubatiba river is a coastal stream subject to stochastic spates all over the year and, Characidium sp.n. is among the twenty-two species that compose its ichthyofauna.
R. MAZZONI, E. P. CARAMASCHI, N. FENERICH-VERANI   +2 more
doaj   +4 more sources

The karyotypes and evolution of ZZ/ZW sex chromosomes in the genus Characidium (Characiformes, Crenuchidae). [PDF]

Comp Cytogenet, 2018
Available data on cytotaxonomy of the genus Characidium Reinhardt, 1867, which contains the greatest number of species in the Characidiinae (Crenuchidae), with 64 species widely distributed throughout the Neotropical region, were summarized and reviewed.
Pucci MB, Nogaroto V, Bertollo LAC, Orlando Moreira-Filho, Vicari MR.   +4 more
europepmc   +4 more sources

Aspectos da reprodução no gênero Characidium Reinhardt, 1867 (Crenuchidae, Characidiinae), na microbacia do Ribeirão Grande, serra da Mantiqueira, sudeste do Brasil - DOI: 10.4025/actascibiolsci.v28i4.170

Acta Scientiarum: Biological Sciences, 2006
Neste trabalho são descritos aspectos da biologia da reprodução em Characidium lauroi e C. alipioi. A maturação das gônadas é dividida em quatro estádios e são descritos no ciclo anual.
Francisco Manoel de Souza Braga
doaj   +6 more sources

First Cytogenetical Studies in Characidium Species (Pisces: Characiformes, Characidiinae). [PDF]

CYTOLOGIA, 1994
Fishes of the subfamily Characidiinae are almost unknown from the cytogenetic viewpoint. The mitotic chromosomes of Characidium cf lagosantensis, Characidium sp, Characidium pterostictum, and Characidium cf zebra, are here first described. With 2n=50, the major karyotype structure of all species was very homogeneous.
Miyazawa, C. S., Jr, P. M. Galetti
  +9 more sources

A new species of Characidium (Characiformes: Crenuchidae) from the rio Doce basin, Brazil [PDF]

Neotropical Ichthyology, 2022
A new species of Characidium is described from the tributaries of the upper and middle rio Doce basin, Minas Gerais, Brazil. The new species is distinguished from most congeners, except C. cricarense, C. hasemani, C. helmeri, C. kalunga, C. pterostictum,
Leonardo Oliveira-Silva, Sérgio A. dos Santos, Maridiesse Morais Lopes, Angela Maria Zanata   +3 more
doaj   +1 more source

A new miniature species of Odontocharacidium (Characiformes: Crenuchidae) from the Río Orinoco basin, Venezuela [PDF]

Neotropical Ichthyology, 2020
A new species of Odontocharacidium is described from the upper Río Orinoco basin, in Venezuela. The new species is distinguished from its only congener, Odontocharacidium aphanes, by the presence of: the antorbital, the parietal branch of the ...
Elizabeth Kathleen de Queiroz Rodrigues, Andre L. Netto-Ferreira   +1 more
doaj   +1 more source

Occurence of Characidium xavante (Characiformes: Crenuchidae) in the Tapajós River basin and comments about the conservation status of the species

Anais da Academia Brasileira de Ciências, 2021
Characidium xavante was described from two tributaries of the Culuene River drainage, in the upper Xingu River basin. New samplings recorded the species for streams from the Kaaiapó River drainage (Teles Pires River drainage, upper Tapajós River basin ...
WEFERSON J. DA GRAÇA, HUGMAR P. DA SILVA, AUGUSTO FROTA, IZAIAS M. FERNANDES, RODRIGO P. BARCELOS   +4 more
doaj   +1 more source

Chromosomal divergence and maintenance of sympatric Characidium fish species (Crenuchidae, Characidiinae) [PDF]

Hereditas, 2003
Cytogenetic studies were performed in two syntopic species of Characidium, C. lauroi and Characidium sp. cf. C. alipioi, from Ribeirão Grande, Paraíba do Sul river basin. Both species have diploid number 2n=50 chromosomes, but differ in chromosome shape, C-banding pattern and location of nucleolar organizing regions. In Characidium sp. cf. C. alipioi a
Liano, Centofante, Luiz Antônio Carlos, Bertollo, Paulo A, Buckup, Orlando, Moreira-Filho   +3 more
openaire   +2 more sources

Integrative study of Characidium borellii (Characiformes: Crenuchidae): phylogenetic relationships and geographic distribution [PDF]

Neotropical Ichthyology
The genus Characidium comprises a diverse group of small Neotropical freshwater fishes. Among the 89 valid species, eight occur in Argentina. Characidium borellii, originally described based on material from the río Salí basin, show morphological ...
V. Ezequiel Méttola, Guillermo E. Terán, Gastón Aguilera, Martin M. Montes, Marina Ibáñez Shimabukuro, Felipe Alonso, J. Marcos Mirande   +6 more
doaj   +1 more source

Characidiinae Fowler 1932

, 2014
Subfamily Characidiinae Fowler 1932 Characidiinae Fowler 1932b:349 [ref. 16356] (subfamily) Characidium [name only, but used as valid by Travassos 1952:5 [ref. 12720], by Travassos 1956:1 [ref. 12233], by Géry 1972b:67 [ref. 1594], by Géry 1977:111 [ref. 1597] and by Buckup 1992:1066 [ref.
Laan, Richard Van Der, Eschmeyer, William N., Fricke, Ronald   +2 more
openaire   +1 more source