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首页> 外文期刊>Advances in Life Sciences >Use of Microalgae to Establish the Trophic Status of Lake La Vi?a (Argentina)
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Use of Microalgae to Establish the Trophic Status of Lake La Vi?a (Argentina)

机译：利用微藻确定拉维阿湖（阿根廷）的营养状态

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摘要

Construction of dams changes physical and chemical characteristics of water basins, producing variations on microalgal community. The Province of Córdoba, located in the Central Region of Argentina, bears more than twenty dams and lakes. One of these lakes is La Vi?a. The main goal of this report was the evaluation of its trophic status using microalgae as bioindicators. Five sampling stations were established. Sample collection was performed monthly and physical and chemical parameters were monitored, according to standard methodology. Results show temporal variations, ranging from mesotrophic to eutrophic, according to weather conditions. Algal blooms happened frequently, produced by Cyanophyceae at eutrophic conditions and by Dinophyceae at mesotrophic conditions. Higher levels of chlorophyll a occurred during warm months, while lower levels ocurred during the cooler ones. As suggested by our results, urgent actions are required in order to revert this diagnosis and recover a good water quality of the lake.
机译：大坝的建设改变了流域的物理和化学特性，在微藻群落上产生了变化。科尔多瓦省位于阿根廷中部，拥有二十多个水坝和湖泊。这些湖泊之一是La Vi？a。本报告的主要目标是使用微藻作为生物指示剂评估其营养状况。建立了五个采样站。每月进行一次样品收集，并根据标准方法对理化参数进行监控。结果显示，根据天气条件，时间变化从中营养到富营养化。藻华经常发生，由蓝藻科在富营养条件下和蓝藻科在中等营养条件下产生。在温暖的月份中，叶绿素a的含量较高，而在凉爽的月份中，叶绿素a的含量较低。根据我们的结果表明，需要采取紧急措施以恢复这种诊断并恢复湖泊的良好水质。

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