2016
DOI: 10.4215/rm2016.1504.0005
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The Porto Primavera Dam and the Fluvial Transport on the Porto São José Section, Parana River

Abstract: A barragem de Porto Primavera provocou a diminuição da concentração da carga suspensa e a redução do porte das formas de leito do rio Paraná, mas os efeitos de sua construção sobre o transporte fluvial ainda não foram quantificados. Por esta razão, este trabalho tem como objetivo avaliar a influência da barragem sobre o transporte de sedimentos na seção de Porto São José. Para isso foram analisados os dados da série histórica da estação fluviométrica de Porto São José e as informações existentes na literatura.… Show more

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Cited by 3 publications
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“…The tributaries in the last undammed stretch of the Paraná River are recognized as important for the input of nutrients and suspended particulate matter (Souza Filho, 2016), however, the high values of water discharge and the dilution effect of the Paraná River hindered the determination of the contribution of each tributary fro the phytoplankton community structure. The variations observed in phytoplankton attributes among tributaries may be attributed to differences regarding the geological origin, occupation of the drainage basin and anthropogenic impacts.…”
Section: Discussionmentioning
confidence: 99%
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“…The tributaries in the last undammed stretch of the Paraná River are recognized as important for the input of nutrients and suspended particulate matter (Souza Filho, 2016), however, the high values of water discharge and the dilution effect of the Paraná River hindered the determination of the contribution of each tributary fro the phytoplankton community structure. The variations observed in phytoplankton attributes among tributaries may be attributed to differences regarding the geological origin, occupation of the drainage basin and anthropogenic impacts.…”
Section: Discussionmentioning
confidence: 99%
“…In fact, in this stretch of the Paraná River, at the region situated immediately downstream Porto Primavera reservoir, there was a drastic reduction in the values of suspended solids (Souza-Filho, 2016), with a consequent increase in water transparency and a decrease in nutrient concentration, causing an oligotrophication process resulting in profound alterations in all aquatic biota (Agostinho et al, 2008;Roberto et al, 2009;Thomaz et al, 2004;Bovo-Scomparin et al, 2013;Rodrigues et al, 2009Rodrigues et al, , 2015. Therefore, reservoir construction is among the main causes of biodiversity loss in Resumo: Objetivo: Avaliar a extensão da influência dos reservatórios à montante sobre a variação temporal e espacial do fitoplâncton na calha do rio Paraná e a importância de seus principais tributários na diminuição do processo de oligotrofização neste trecho do rio.…”
Section: Introductionunclassified