A new catfish species of Microcambeva Costa & Bockmann, 1994 (Siluriformes: Trichomycteridae) from southern Brazil, with a redescription of M. ribeirae Costa, Lima & Bizerril, 2004. [PDF]
J Fish BiolAbstract Among the few species of Microcambeva reported as occurring in more than one hydrographic basin, M. ribeirae has been previously listed from both the Ribeira de Iguape and the Guaraqueçaba basins. However, morphological and molecular analyses revealed that the specimens from Guaraqueçaba represent a new species, which is described in this ...
de Medeiros LS +6 more
europepmc +2 more sources
, 2023 Published as part of Saravia, Alejandro Nicolás, Mettola, Víctor Ezequiel, Aguilera, Gastón, Cano, Paula Daniela & Terán, Guillermo Enrique, 2023, Do we know what we are conserving? Fishes from Parque Nacional Aconquija, Tucumán, Northwestern Argentina, pp.
Saravia, Alejandro Nicolás +4 more
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New insights into the putative XX/XY sex chromosomal system in blue-eyed red-fin pleco Hypostomus soniae (Siluriformes, Loricariidae). [PDF]
J Fish BiolAbstract Blue‐eyed red‐fin pleco Hypostomus soniae (family Loricariidae) presented a putative sex system XX/XY in early stage. Aiming to explore the inter‐populational karyotypic variation and proposed emergence of the XX/XY system, we studied 13 H. soniae individuals (6 males, 7 females) from the Tapajós River.
Maciel LAM +6 more
europepmc +2 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 +4 more
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Characidium zebra Eigenmann 1909
, 2023 C. zebra Eigenmann, 1909 first record from Uruguay info published in Serra et al. (2014) sub Characidium aff. zebra remarks This is the species which in the past erroneously was addressed as C. fasciatum.
Koerber, Stefan +2 more
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Ecological separation by ecomorphology and swimming performance between two congeneric fish species [PDF]
Zoologia (Curitiba), 2020 The high diversity of freshwater fish species reflects a great morphological plasticity. Understanding the relationship between swimming capacity, morphology and habitat use may be important to predict the chances of finding a species at an anthropized ...
Rafael C. R. Souza, Paulo S. Pompeu
doaj +3 more sources
Acta Scientiarum: Biological Sciences, 2008 Este estudo analisa a distribuição espacial de peixes characidíneos, Characidium lauroi e Characidium alipioi, no sudeste do Brasil. Os peixes foram amostrados de julho de 2001 a abril de 2002. As coletas foram feitas com um aparelho de pesca-elétrica em
Francisco Manoel de Souza Braga
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Single origin of sex chromosomes and multiple origins of B chromosomes in fish genus Characidium. [PDF]
PLoS ONE, 2014 Chromosome painting with DNA probes obtained from supernumerary (B) and sex chromosomes in three species of fish genus Characidium (C. gomesi, C. pterostictum and C.
José Carlos Pansonato-Alves +8 more
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A new, narrowly distributed, and critically endangered species of Characidium (Characiformes: Crenuchidae) from the Distrito Federal, Central Brazil [PDF]
Neotropical Ichthyology, 2021 A new species of Characidium is described from the Cerrado biome, in Brasília, Distrito Federal, Central Brazil. The new species can be readily diagnosed by the presence of two or three longitudinal rows of dots along the body sides, absence of bars, by ...
Marcelo Roberto Souto de Melo +2 more
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Neotropical Ichthyology, 2021 A new species of Characidium is described from the tributaries of the rio Tocantinzinho, rio Tocantins basin, located in the southern portion of the Chapada dos Veadeiros, at about 1,200 meters of elevation, Goiás, Brazil.
Marcelo R. S. Melo +4 more
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