Results 21 to 30 of about 755 (165)
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
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Seasonal and interannual variation of bacterial production in lowland rivers of the Orinoco basin [PDF]
Freshwater Biology, 2004 Summary1. We examined the influence of hydrologic seasonality on temporal variation of planktonic bacterial production (BP) in relatively undisturbed lowland rivers of the middle Orinoco basin, Venezuela. We sampled two clearwater and two blackwater rivers over 2 years for dissolved organic carbon (DOC), chlorophyll, phosphorus and bacterial abundance ...
Castillo, María M. +3 more
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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
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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
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Neotropical IchthyologyThe arowanas, fishes of Gondwanan origin, are represented in South America by the genus Osteoglossum. All species were initially reported as being exclusive to the Amazon region, with O. ferreirai restricted to the Negro River basin and O. bicirrhosum to
Maria Doris Escobar L. +4 more
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Biota Colombiana, 2010 The Paria Gulf Basin ichthyofauna comprises 218 species arranged in 14 orders and 50 families. Among these, 155 species are considered strictly freshwater and 63 species are euryhaline.
Carlos A. Lasso +2 more
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MICRONUTRIENT CONTENT OF TROPICAL SOILS OF THE UPPER ORINOCO RIVER BASIN
The Journal of Agriculture of the University of Puerto Rico, 1980 MICRONUTRIENT CONTENT OF TROPICAL SOILS OF THE UPPER ORINOCO RIVER ...
null J. Andrew Zusevics +1 more
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Biota Colombiana, 2011 During 2010 and 2011 diurnal and nocturnal surveys were conducted in the drainages of the Meta and Vichada rivers (Colombian Orinoco Basin) to update the information about the conservation status of the Orinoco crocodileâs populations in the wild ...
Antonio Castro +4 more
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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
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Neotropical IchthyologyWe review species of Parodon Valenciennes, 1850 from the Magdalena, Cauca, Orinoco, Amazonas, Atrato and Caribbean-Guajira River basins of Colombia using meristic and morphological characters.
Alejandro Londoño-Burbano +2 more
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