Results 11 to 20 of about 702 (125)
First record of Arapaima gigas (Schinz, 1822) (Teleostei: Osteoglossomorpha), the “pirarucu”, in the upper Paraná River basin, Southeast Brazil [PDF]
Check List, 2015 Arapaima gigas (Schinz), the “pirarucu”, is one of largest freshwater fish of the Neotropical region, naturally occurring in the Amazon, Essequibo, and Orinoco river basins.
Fernando Carvalho +3 more
doaj +3 more sources
Zoologia (Curitiba), 2010 Nine new species of Phenacogaster Eigenmann, 1907 are described: Phenacogaster capitulatus sp. nov. from the Neshuya River system, Ucayali River basin; Phenacogaster maculoblongus sp. nov. from the upper Cuyuni River, and tributaries of the lower Orinoco
Zilda Margarete Seixas de Lucena +1 more
doaj +1 more source
Revista de Investigaciones Universidad del Quindío, 2017 Hemibrycon guejarensis, new species, is described from the Güejar River, La Macarena mountain range, upper Guaviare River drainage, Colombia. The new species is distinguished from most cis-Andean congeners (H.
César Román-Valencia +2 more
doaj +1 more source
Biota Colombiana, 2009 Data derived from the literature supplemented with new collections made in the Inírida Fluvial Star (15th to 27th February 2008) reveal a species richness of 470 fishes species grouped in 224 genera, 40 families, and 10 orders.
Carlos A. Lasso +12 more
doaj +1 more source
A long-hidden species of Pimelodella (Siluriformes: Heptapteridae) from the upper and middle Orinoco, and western Amazon tributaries [PDF]
Neotropical IchthyologyA new species of Pimelodella is described from the upper and middle basin of the Orinoco River, upper basin of Negro River, and upper basin of the Apaporis River.
Miguel Ángel Cortés-Hernández +4 more
doaj +1 more source
Journal of Marine Science and Engineering, 2021 The dolphins Inia geoffrensis—boto and Sotalia fluviatilis—tucuxi are threatened cetaceans inhabiting river ecosystems in South America; population numbers are still lacking for many areas.
Mariana Paschoalini +10 more
doaj +1 more source
Biota Colombiana, 2006 The investigation was carried out between November 2004 and August 2005, and was based on the rivers Teusaca, Idaza, La Laguna (Quebrada Blanca), del Salteador creek, Marlene creek (affluent of the del Salteador creek), Blanca creek (Mataredonda-Reserve)
Saúl Prada-Pedreros +2 more
doaj +8 more sources
Apistogramma megaptera (Perciformes: Cichlidae), una nueva especie para la cuenca del Orinoco
Biota Colombiana, 2011 We describe a new species, Apistogramma megaptera (Perciformes: Cichlidae) that occurs in the upper Orinoco River Basin, in the Inírida, Atabapo and Mavaca rivers of Venezuela and Colombia.
Lina M. Mesa Salazar, Carlos A. Lasso
doaj +1 more source
New species records in Acanthagrion, Nehalennia, and Perilestes (Odonata: Zygoptera) for Colombia
Biota Colombiana, 2022 We record for the first time Acanthagrion jessei, Nehalennia minuta, and Perilestes solutus in Colombia, based on males and females taken at the campus Barcelona at the Universidad de Los Llanos, located in the foothills of the Colombian Eastern Andes in
Karen Lineke Alvarez Alvarez +2 more
doaj +1 more source
The biosonar of the boto: evidence of differences among species of river dolphins (Inia spp.) from the Amazon [PDF]
PeerJ, 2021 Echolocation clicks can reflect the anatomy of the vocalizing animal, enabling the distinction of species. River dolphins from the family Iniidae are formally represented by one species and two subspecies (Inia geoffrensis geoffrensis and I.
Jéssica F. Melo +3 more
doaj +2 more sources