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| Fiori, Leandro Fabrício; Sacramento, Patricia Almeida; Corbetta, Daiany de Fátima; Pereira, Lucas Milani; Benedito, Evanilde. |
| The particulate organic carbon (POC) is an important energy source present in the food chain of detritivorous fish. Considering its importance, this study aimed to investigate the effect of the flood pulse on the composition of the POC in a neotropical floodplain. For this, we analyzed the seasonal variations of the carbon isotopic composition (δ13C) and nitrogen (δ15N) in two different hydrological periods in the years 2000 and 2009. Sampling of potential sources of primary producers, as well as the POC, was held in different subsystems of the floodplain of the upper Paraná river (subsystems of the rivers Parana, Baía and Ivinheima). In 2000, there were significant differences on isotopic signature (δ13C) of the POC, unlike what was seen in 2009, where... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.05.02.00-1 potamophase; Limnophase; Rivers; Water level; Wetlands Ecologia de Ecossistemas. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/20336 |
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| Dias, Jm; Lopes, Jf; Dekeyser, I. |
| The hydrological features of Ria de Aveiro, a coastal lagoon on the northwest Atlantic coast of Portugal, were investigated in two sampling surveys carried out between 3/6 and 24/6/97 and between 29/6 and 7/7/97, respectively There was a significant freshwater inflow into the lagoon during the first survey, especially in the first days, due to the recent rainfalls. Records concerning water level, salinity, temperature and current velocity were performed at several stations located along the four main channels of the lagoon. The type of tide at the mouth was determined and was observed that astronomical tide is the main forcing agent driving water circulation in Ria de Aveiro. The tide at the mouth is semidiurnal and the tidal wave propagation in the lagoon... |
| Tipo: Text |
Palavras-chave: Surélévation; Salinité; Température; Vitesse du courant; Ria de Aveiro; Water level; Salinity; Temperature; Current velocity; Ria de Aveiro. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/00325/43597/43928.pdf |
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