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Organochlorine and organophosphorous pesticides in the Parana River (Argentina)
Science of The Total Environment, 1984Organochlorine and organophosphorous pesticide concentrations have been monitored in the Parana River, Argentina, at a point 600 km upstream from its mouth, since March 1981. Chromatographic analyses performed up to December 1981 indicate that parathion, lindane and α-BHC (benzene hexachloride) are the most ubiquitous species with mean concentrations ...
Argelia M. Lenardon +4 more
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Effect of climate change on navigation channel dredging of the Parana River
International Journal of River Basin Management, 2013This paper presents an analysis of the effect of climate change on modifying the dredging cost to maintain the navigation channel at the actual capacity of the Parana waterway (Argentina). The Parana−Paraguay Rivers system is one of the most important inner navigation waterways in the world, where approximately 100 million tons of cargo are transported
GUERRERO, MASSIMO +4 more
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Genotoxic Effects of Water from São Francisco River, Brazil, in Astyanax paranae
Bulletin of Environmental Contamination and Toxicology, 2014Aquatic monitoring is an important tool for identifying potential compounds in rivers that may damage the environment. Here, we evaluate the potential genotoxic effects of water samples from São Francisco River (Brazil) using the micronuclei (MN) assay in resident species, Astyanax paranae.
Diego Luis, Ribeiro +2 more
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Decomposition rate of plant material in the Parana Medio River (Argentina)
Hydrobiologia, 1989The degradation of plant material in the centre of two plain streams (the Parana Medio River main channel − 0.6 m.s−1 - and the Colorado River − 0.03 m.s.−1) was studied in order to obtain a degradation coefficient for the species Panicum prionitis, Paspalum repens and Eichhornia crassipes, representative of the vegetation of the area of the future man-
J. Hammerly +4 more
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A Risk Assessment of Ships Groundings in Rivers: The Case of Parana River
Journal of Navigation, 2019A ship's grounding appears to be a significant threat to the safety of its crew, marine environment and the local ports economy. The risk of such incidents is higher in rivers since weather conditions can significantly alter the depths of channels from those shown on navigation charts.
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Fish populations in the Parana River. 2. Santa Fe and Corrientes areas
Hydrobiologia, 1981This paper presents data on the fish populations of temporary lenitic water bodies along the Middle Parana River in the Santa Fe and Corrientes areas, some 650 km apart, sampled during 1972. Comparisons are made among the fish faunas present in the various ponds in 1972, and also with data collected in the same areas in the previous four years ...
Elly de Yuan Cordiviola +1 more
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Cuadernos de Educación y Desarrollo
The vegetation of the Paraná River (PIARP), especially in the floodplain located between the states of Paraná and Mato Grosso do Sul, Brazil, consists of a great diversity of plant species, particularly from the Mimosoide clade. Among the genera of the Mimoseae clade that occur in the floodplain, Mimosa deserves to be highlighted, and should be studied.
Letícia Mônica Garcia +3 more
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The vegetation of the Paraná River (PIARP), especially in the floodplain located between the states of Paraná and Mato Grosso do Sul, Brazil, consists of a great diversity of plant species, particularly from the Mimosoide clade. Among the genera of the Mimoseae clade that occur in the floodplain, Mimosa deserves to be highlighted, and should be studied.
Letícia Mônica Garcia +3 more
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Subsoil Exploration for a Bridge Over the Parana River, Argentina
Géotechnique, 1954synopsis A site exploration for a proposed bridge over the Paraná River, in Argentina, offered an opportunity to study the correlation between penetration resistance and the relative density of sand. The method of subsoil exploration used is described and the results obtained are given.
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The Australoheros (Teleostei: Cichlidae) species of the Uruguay and Parana River drainages
Zootaxa, 2008Australoheros Ř íčan and Kullander, 2006 includes four described species—Australoheros facetus (Jenyns, 1842), Australoheros tembe (Casciotta, Gómez & Toresani, 1995), Australoheros scitulus (Říčan & Kullander, 2003) and Australoheros kaaygua Casciotta, Almirón & Gómez, 2006.
OLDŘICH ŘÍČAN, SVEN O. KULLANDER
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Feeding of Acetes paraguayensis (Nobili) (Decapoda: Sergestidae) from the Parana River, Argentina
Hydrobiologia, 2003Feeding habits of Acetes paraguayensis (Hansen) were studied by examining the stomach content of specimens from two lakes. A. paraguayensis is omnivorous, feeding mainly on members of littoral-benthic and lotic communities. Algae, rotifers and microcrustaceans (copepods and cladocerans) are the more frequent items in the bulk of the stomach content ...
Pablo A. Collins, Veronica Williner
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