Physico‐chemical characteristics and seasonal changes of plankton communities in a river reservoir
Physico‐chemical characteristics and seasonal changes of plankton communities in a river reservoir
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河流水库浮游生物群落理化特征及季节变化
DOI：
10.1111/j.1440-1770.1996.tb00049.x
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发表时间：
1996
影响因子：
--
通讯作者：
M. Toman
中科院分区：
文献类型：
--
作者：
M. Toman
5月至10月期间，每隔三周定期对Mavcice河水库（斯洛文尼亚萨瓦河）进行湖沼学调查。我们的调查范围是确定的物理化学参数，物种组成，丰富度和变化的浮游生物群落在夏季分层。浮游植物的优势类群为绿藻和甲藻，其次为蓝藻和硅藻，浮游动物的优势类群为轮虫，其次为纤毛虫、太阳虫和枝角类。富营养化正在发生，主要是由于最近城镇的市政和工业废水大量流入。总磷和硝酸盐的浓度调节水库中初级生产的程度。其结果是潜水层中的氧气耗尽和沉积物中的缺氧条件。
Limnological investigations of the river reservoir Mavcice (the Sava River, Slovenia) were carried out between May and October at regular three-week intervals. The scope of our investigation was to determine physico-chemical parameters, species composition, abundance and changes in the plankton community during summer stratification. The dominant taxa of phytoplankton were Chlorophyceae and Dinophyceae, and less so Cyanophyceae and Bacillariophyceae, while Rotatoria and less so Ciliata, Heliozoa and Cladocera were common zooplankton taxa. Eutrophication is in progress and primarily results from the high input of municipal and industrial wastewater from the nearest town. The concentration of total phosphorus and nitrates regulates the extent of primary production in the reservoir. The result is oxygen depletion in the hypolimnetic layer and anoxic conditions in the sediments.