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Phylogenetic relationships within the speciose family Characidae (Teleostei: Ostariophysi: Characiformes) based on multilocus analysis and extensive ingroup sampling
TLDR
A monophyletic assemblage strongly supported in all the authors' phylogenetic analysis is herein defined as the Characidae, which includes the characiform species lacking a supraorbital bone and with a derived position of the emergence of the hyoid artery from the anterior ceratohyal.
Lophiobrycon weitzmani, a new genus and species of glandulocaudine fish (Characiformes: Characidae) from the rio Grande drainage, upper rio Paraná system, southeastern Brazil
A new genus and species of glandulocaudine, Lophiobrycon weitzmani, is described based on specimens collected in headwater tributary streams of the rio Grande, upper rio Parana system, State of Minas
Taxonomy based on science is necessary for global conservation
Author(s): Thomson, Scott A; Pyle, Richard L; Ahyong, Shane T; Alonso-Zarazaga, Miguel; Ammirati, Joe; Araya, Juan Francisco; Ascher, John S; Audisio, Tracy Lynn; Azevedo-Santos, Valter M; Bailly,
New species of Moenkhausia Eigenmann, 1903 (Characiformes: Characidae) with comments on the Moenkhausia oligolepis species complex
TLDR
Molecular analyses using partial sequences of the mitochondrial gene Cytochrome Oxidase I from specimens of the new species and specimens belonging to morphologically similar species demonstrated that thenew species is easily differentiated by their high genetic distance and by their position in the phylogenetic hypothesis obtained through the Maximum Parsimony methodology.
A new species of Tetragonopterus Cuvier, 1816 (Characiformes: Characidae: Tetragonopterinae) from the rio Jari, Amapá, northern Brazil
TLDR
A new species of Tetragonopterus is described from the rio Jari, a tributary to the left margin of rio Amazonas, at the border between Amapa and Para States, northern Brazil, with a significant genetic distance between the new species and its congeners.
Molecular phylogeny of Moenkhausia (Characidae) inferred from mitochondrial and nuclear DNA evidence
TLDR
A large number of species of Moenkhausia were analysed to test the monophyly of the genus based on the phylogenetic analysis of DNA sequences of two mitochondrial and three nuclear genes, which indicates the necessity of an extensive revision of the group.
Taxonomic revision and molecular phylogeny of Gymnocorymbus Eigenmann, 1908 (Teleostei, Characiformes, Characidae).
TLDR
The results support previous hypotheses of the alignment of Gymnocorymbus close to the subfamily Stethaprioninae and also support the sister relationship between G. ternetzi and G. thayeri.
Structure and composition of the stream ichthyofauna of four tributary rivers of the upper Rio Parana basin, Brazil
TLDR
Analysis of the trophic structure of the studied ichthyofauna indicated that the 10 numerically dominant species across the 24 sampled streams can be grouped into guilds that are in decreasing order of numerical importance: omnivores, insects, insectivores/invertivoores, periphytivore, and algivores.
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