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| SILVA,MARCIO S. DA; GUIMARÃES,JOSÉ T.F.; SOUZA FILHO,PEDRO W.M.; NASCIMENTO JÚNIOR,WILSON; SAHOO,PRAFULLA K.; COSTA,FRANCISCO R. DA; SILVA JÚNIOR,RENATO O.; RODRIGUES,TARCÍSIO M.; COSTA,MARLENE F. DA. |
| ABSTRACT High-resolution satellite images, digital elevation models, bathymetric and sedimentological surveys coupled with statistical analysis were used to understand the physical environment and discuss their influence on water quality of the five upland lakes of Serra Sul dos Carajás, southeast Amazonia. The lakes have mid-altitude ranges (elevation), very small (catchment) and shallow to very shallow (central basins). Based on the length, area and volume, Violão and TI (Três Irmãs)-3 lakes may present large vertical movements of the water due to wind action and weakly stratified waters. Trophic conditions based on depth and shore development (Ld) parameters must be used with caution, since Amendoim Lake is relatively deep, but it is oligotrophic to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lateritic crust; Lakes; Limnology; Geomorphology; Amazon region; Carajás. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401309 |
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| SAHOO,PRAFULLA K.; GUIMARÃES,JOSÉ T.F.; SOUZA-FILHO,PEDRO W.M.; SILVA,MARCIO S. DA; SILVA JÚNIOR,RENATO O.; PESSIM,GUSTAVO; MORAES,BERGSON C. DE; PESSOA,PAULO F.P.; RODRIGUES,TARCÍSIO M.; COSTA,MARLENE F. DA; DALL'AGNOL,ROBERTO. |
| ABSTRACT Limnological characteristics of the Violão and Amendoim lakes, in the Serra dos Carajás, Amazon, were studied interannually (2013-2014). Climate data indicate anomalous conditions during the 2013 rainy period with higher rainfall and lower temperature in the beginning (November). Lake levels were influenced after the first and second hour of each rainfall, which showed a strong synchronization between seasonal fluctuation of lake levels and local weather patterns. Based on the water quality, both lakes are classified as classes "1" and "2" in the CONAMA (Conselho Nacional do Meio Ambiente) scheme and as "excellent" to "good" in the WQI (Water Quality Index) categories. However, the limnology is distinctly different between the lakes and seasons.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Upland lakes; Water quality; Phytoplankton biomass; Carajás Province. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000602211 |
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