2016
DOI: 10.1590/0001-3765201620160354
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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 cl… Show more

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Cited by 43 publications
(40 citation statements)
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“…High trophic states are due to nutrient concentrations, mainly TP (total phosphorous), promoting algal growth. Sources of TP for these lakes are associated with the presence of mafic rocks, and caves with high guano volume (Sahoo et al, 2016b(Sahoo et al, , 2017b. Although, Chl-a and cyanobacteria are mainly influenced by nutrients such as TP, this is not the case for these lakes, rather they are controlled by additional factors such as seasonal climate conditions, specificities of catchment lithology and lake morphology (Sahoo et al, 2017b).…”
Section: Environmental Influences On Limnology and Water Qualitymentioning
confidence: 99%
“…High trophic states are due to nutrient concentrations, mainly TP (total phosphorous), promoting algal growth. Sources of TP for these lakes are associated with the presence of mafic rocks, and caves with high guano volume (Sahoo et al, 2016b(Sahoo et al, , 2017b. Although, Chl-a and cyanobacteria are mainly influenced by nutrients such as TP, this is not the case for these lakes, rather they are controlled by additional factors such as seasonal climate conditions, specificities of catchment lithology and lake morphology (Sahoo et al, 2017b).…”
Section: Environmental Influences On Limnology and Water Qualitymentioning
confidence: 99%
“…They suggest that the effect can be observed in the long term if waterfowl populations gradually increase [89,92]. Several investigations have associated the nutrients, organic matter and coliforms inputs by bird guano in lagoons [8,9,12,36,74,76]. In addition, the elimination of bottom fauna by guanotrophy (ammonia-poisoning) [10,69] might occur.…”
Section: Discussionmentioning
confidence: 99%
“…Total annual precipitation ranges from 1,800 to 2,300 mm, with a total mean of ~ 1,550 mm during the rainy season (November to May) and ~ 350 mm during the dry season (June to October) (Moraes et al 2005, Sahoo et al 2016a.…”
Section: Study Sitementioning
confidence: 99%