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A new species of Ancistrus Kner, 1854 (Siluriformes: Loricariidae) from rio Mad...
Bifi, Alessandro Gasparetto; Oliveira, Renildo Ribeiro de; Py-daniel, Lúcia RappDuring the Mosaico do Apuí expedition in 2006, a new species of Ancistrus was found in the rio Sucunduri, a large tributary of the rio Madeira basin in south Amazonas State. The new species has a unique color pattern for the genus and is distinguished by the presence of alternate light and dark vertical bars on the trunk. Other Ancistrini genera have species with a similar color pattern, but the new species is ...
Redescription of ancistrus greeni (Siluriformes: Loricariidae), and description...
Bifi, Alessandro Gasparetto; Ortega, HernánA new species of Ancistrus is described from minor tributaries of the río Madre de Dios basin (Cusco-Madre de Dios-Puno), in Peru. The new species shares with A. greeni an uncommon unicusp dentition; but it is distinguished from A. greeni by a larger orbital diameter, deeper caudal peduncle, and larger adipose-fin spine. The redescription of A. greeni is provided, and its recognition along with the discovery of...
Fish species (Osteichthyes: Actinopterygii) from two tributaries of the rio do ...
Bifi, Alessandro Gasparetto; Dias, Angélica C.; Frota, AugustoThe Rio Pitangueira and the Ribeirão Santa Terezinha are right margin affluents of the Rio do Peixe, upper Rio Paraná basin, São Paulo state, Brazil. Fourteen non-temporally standardized samplings were made at four sampling sites along the Rio Pitangueira and at one sampling site on Ribeirão Santa Terezinha using cast nets, trawl net, hand net, and fishing rod and hook. Thirty fish species were collected, belon...
Revisão taxonômica das espécies do grupo Hoplias malabaricus (Bloch, 1794) (Cha...
Bifi, Alessandro GasparettoWith the highest number of species among the Erythrinidae, Hoplias is also the genus of broader geographic distribution. It has taxonomic problems that require a revision of the species of the H. malabaricus group from the La Plata basin. Therefore, morphometric and meristic analyses were performed on specimens from Central and South America. The group was defined as a group of Hoplias species with medial margi...
Revisão das espécies de Ancistrus Kner, 1854 (Siluriformes: Loricariidae) da ba...
Bifi, Alessandro GasparettoThe genus Ancistrus is the most specious of the tribe Ancistrini, with 59 nominal species scattered over the Neotropical region, from Panama to middle portion of Argentina. In the Rio Iguaçu basin, that presents a high degree of endemism of ichthyofauna, specimens of that genus were caught and were attributed to three new species described herein following current methodologies. Ancistrus sp. A, Ancistrus sp. B...
Peixes do baixo rio Iguaçu
Baumgartner, Gilmar; Pavanelli, Carla Simone; Baumgartner, Dirceu; Bifi, Alessandro Gasparetto; Debona, Tiago; Frana, Vitor AndréO rio Iguaçu nasce na confluência dos rios Atuba e Irai, e desemboca no rio Paraná, em Foz do Iguaçu. A ictiofauna deste rio, desde os primeiros trabalhos realizados, sempre foi considerada pobre e de pequeno porte, entretanto, apresenta um elevado grau de endemismo favorecido pelo surgimento das Cataratas do Iguaçu, que exerceram um papel fundamental neste processo. Esta obra busca uma fonte aglutinadora, mas ...
Specific composition and abundance of the ichthyofauna from Padres’ river, Igua...
Bifi, Alessandro Gasparetto; Baumgartner, Dirceu; Baumgartner, Gilmar; Frana, Vitor André; Debona, TiagoThe composition and structure of fish community can be considered ecological and environmental indicators. The present study aimed to survey information about the specific composition and abundance of the ichthyofauna from Padres’ River. Quarterly samplings were accomplished by the method of the electrofishing in two sample sites, one close to the headwater and another in the proximities of the mouth. The colle...