【摘要】 通过两年来对大鹏湾盐田海域锰含量的监测,着重分析了其间10次赤潮发生全过程的水质锰含量变化规律。发现赤潮发生期间水质锰含量呈现变化快,变幅大、与赤潮消长同步升降的特征。表层水平分布和垂直分布极不均匀,呈现与赤潮生物分布一致的趋势。 本文认为,在盐田海域当局部水质锰含量大于10μg/L、突变幅度大于7μg/L时,可作为一个与赤潮发生密切的水质指标。更多还原

【Abstract】 Based on two-year monitoring data,change in manganese concentration in waters off Yantian, Dapeng Bay was analysed with a focus on its changing pattern in ten occurrences of red tide. It was found that concentration of Mn changed quickly in a wide range,increasing and decreasing consistently with red tide growth and decline. Its was quite uneven,but in the same trend as that of red tide algae. Two values of Mn concentration were recommendedd as the index indicating the up-coming red tide outbreak in the region.更多还原