A new species of Ancistrus Kner, 1854 (Siluriformes: Loricariidae) from rio Madeira basin, Amazonas State, Brazil

Abstract

During 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 clearly distinguished by a lack of plates on the snout and presence of fleshy tentacles on the snout as in all Ancistrus representatives. We also provide comments on the taxonomic status of the A. bolivianus, A. heterorhynchus and A. marcapatae.

Damming Amazon Rivers: Environmental impacts of hydroelectric dams on Brazil’s Madeira River according to local fishers’ perception

“…The Basin of the Madeira River is one of the Amazonian ecosystems that has most suffered from the implantation of hydroelectric dams (Latrubesse et al 2017). As one of the principal tributaries of the Amazon River, the Madeira River play a fundamentally important role in the region's fisheries, with more than 1000 species recorded up to now (Ohara et al 2015), including a large number of recently described taxa (Bifi et al 2019). At least 57 of the fish species recorded in the Madeira Basin are commercially important for the region's fishing communities (Doria et al 2012).…”