3 documents found, page 1 of 1
One thousand DNA barcodes of piranhas and pacus reveal geographic structure and...
Machado, Valéria Nogueira; Collins, Rupert A.; Ota, Rafaela Priscila; Andrade, Marcelo C.; Farias, Izeni P.; Hrbek, TomasPiranhas and pacus (Characiformes: Serrasalmidae) are a charismatic but understudied family of Neotropical fishes. Here, we analyse a DNA barcode dataset comprising 1,122 specimens, 69 species, 16 genera, 208 localities, and 34 major river drainages in order to make an inventory of diversity and to highlight taxa and biogeographic areas worthy of further sampling effort and conservation protection. Using four m...
Integrative taxonomy reveals a new species of Pacu (Characiformes: Serrasalmida...
Ota, Rafaela Priscila; Machado, Valéria Nogueira; Andrade, Marcelo C.; Collins, Rupert A.; Farias, Izeni P.; Hrbek, TomasPacus of the genus Myloplus represent a formidable taxonomic challenge, and particularly so for the case of M. asterias and M. rubripinnis, two widespread and common species that harbor considerable morphological diversity. Here we apply DNA barcoding and multiple species discovery methods to find candidate species in this complex group. We report on one well-supported lineage that is also morphologically and e...
A preliminary inventory of the catfishes of the lower Rio Nhamundá, Brazil (Ost...
Collins, Rupert A.; Ribeiro, Emanuell Duarte; Machado, Valéria Nogueira; Hrbek, Tomas; Farias, Izeni P.The Rio Nhamundá is a poorly-known clearwater river draining the southern Guiana Shield of Brazil. In this study we report the findings of a preliminary ichthyological survey, focusing on catfishes (Siluriformes). We identify a total of 36 species (31 genera, seven families) from the Nhamundá, including 11 species already recorded from the river. Overall, our survey results show that even rapid surveys can prov...