Temporal and spatial variability of heavy metals in bottom sediments and the aquatic macrophyte Paspalum repens of the Orinoco River floodplain lagoons impacted by industrial activities
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DOI: 10.1007/s11356-020-09623-1
Abstract: This study investigated the water parameters and the levels of several heavy metals in leaves and roots of the aquatic macrophyte Paspalum repens and in bed sediments of one unpolluted lagoon and two polluted lagoons… read more here.
Keywords: macrophyte paspalum; lagoon; orinoco river; heavy metals ... See more keywords
Hydrological control, fractionation, and fluxes of dissolved rare earth elements in the lower Orinoco River, Venezuela
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DOI: 10.1016/j.apgeochem.2019.104462
Abstract: Abstract The monthly variation of dissolved rare earth elements (REEs) was assessed in the lower Orinoco River during a two year period (2007–2008) to determine the seasonal variability of REE concentrations, to identify the variables… read more here.
Keywords: control; orinoco river; lower orinoco; fluxes dissolved ... See more keywords
Genetic identity of Sotalia dolphins from the Orinoco River
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DOI: 10.1111/mms.12422
Abstract: SUSANA CABALLERO, Laboratorio de Ecologı́a Molecular de Vertebrados Acuáticos, LEMVA, Departamento de Ciencias Biológicas, Universidad de los Andes, Carrera 1 No. 18a-10, Bogota, Colombia; FERNANDO TRUJILLO, Fundación Omacha, Calle 86 No. 23-38, Bogota, Colombia; ANDR… read more here.
Keywords: dolphins orinoco; sotalia dolphins; genetic identity; orinoco river ... See more keywords
A New Species of Spatuloricaria Schultz, 1944 (Siluriformes: Loricariidae), from the Orinoco River Basin, Colombia
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DOI: 10.1643/ci-18-087
Abstract: A new species of Spatuloricaria is described from the Orinoco River basin, Colombia. The new species can be distinguished from its congeners by the following characters: a broad, dark brown stripe on the first pre-dorsal… read more here.
Keywords: species spatuloricaria; new species; orinoco river; river basin ... See more keywords
A new species of Astronotus (Teleostei, Cichlidae) from the Orinoco River and Gulf of Paria basins, northern South America
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DOI: 10.3897/zookeys.1113.81240
Abstract: Abstract Based on morphological and molecular analysis of Astronotus species, a new species is described from the Orinoco River and Gulf of Paria basins in Venezuela and Colombia. Morphologically, it differs from Astronotuscrassipinnis and Astronotusocellatus… read more here.
Keywords: gulf paria; river gulf; new species; paria basins ... See more keywords