Fishes of Cuniã Lake, Madeira River Basin, Brazil

Abstract

This study presents an inventory of the ichthyofauna of Cuniã Lake, situated in the floodplain of the Madeira River in Rondônia State, Brazil. A total of 11,949 specimens representing eight orders, 34 families, and 189 species were sampled with gill, seine, and hand nets during the dry and wet seasons between 2008 and 2012. Most of the species recorded in Cuniã Lake are commonly found in other locations in the central Amazonian floodplains, although some are rare in collections (e.g. Acestrorhynchus minimus, Triportheus culter, Oxybrycon parvulus, Tyttocharax madeirae, Trachycorystes trachycorystes and Scorpiodoras lyophisus) or represent new distributional records.

Evolutionary Relationships among <b><i>Boulengerella</i></b> Species (Ctenoluciidae, Characiformes): Genomic Organization of Repetitive DNAs and Highly Conserved Karyotypes

“…ters, with a preference for low turbidity, given their visually oriented predator behavior [Santos et al, 1984;Vari, 1995Vari, , 2003Queiroz et al . , 2014].…”

Hyphessobrycon platyodus (Teleostei: Characiformes), a new species from the Rio Madeira basin, Brazil, with comments on how multicuspid teeth relate to feeding habits in Characidae

“…Despite intensive and broad collecting efforts in the Rio Madeira basin (Santos, ; Camargo & Giarrizzo, ; Rapp Py‐Daniel et al ., ; Perin et al ., ; Araújo et al ., ; Torrente‐Vilara et al ., ; Pedroza et al ., ; Queiroz et al ., ,b; Casatti et al ., ; Vieira et al ., ; Costa et al ., ), H. platyodus was only collected in the Rio Juma, upstream of the Paredão Waterfall. Furthermore, surveys conducted in the upper Rio Aripuanã, near the town of Aripuanã since 1976 by various ichthyologists from several institutions (INPA, MNRJ, MZUSP and UFRO) and expeditions in the lower Rio Aripuanã (Rapp Py‐Daniel et al ., ; Queiroz et al ., ) failed to detect H. platyodus in localities other than the type locality. Although fish endemism has been primarily discussed with respect to the upper Rio Aripuanã (Kullander, ), other species with restricted distributions are also only known from the middle Rio Aripuanã ( i.e.…”

Two new species of spotted Hypancistrus from the Rio Negro drainage (Loricariidae, Hypostominae)

“…A specimen of Hypancistrus with small spots from the Rio Madeira was identified as Hypancistrus cf. inspector (de Queiroz et al 2013). The photograph shows a specimen that is heavily damaged, but has many small spots like Hypancistrus margaritatus .…”