Abstract

It is shown that increasing fish biomass due to planktivorous whitefish Coregonus lavaretus L. in Lake Sevan leads to a reduction in the number of species, abundance, and biomass of spring ZP. In addition, quantitative characteristics of large species of Cladocera, Daphnia (Ctenodaphnia) magna Straus, and a decrease in the Shannon index value are changing as well. A decrease in the number of filter-feeding cladocerans contributes to a decrease in water transparency and an increase in the proportion of Rotifera in the total abundance and biomass of the community.

中文翻译：

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鱼类生物量增加过程中塞凡湖（亚美尼亚）中上层带春季浮游动物的年际变化

摘要

结果表明，由于塞凡湖中的鳞状白鲑Coregonus lavaretus L.导致鱼类生物量增加，导致春季ZP种类，数量和生物量减少。此外，克拉克藻，水蚤（Ctenodaphnia）magna Straus的大种的数量特征以及香农指数值的降低也在改变。滤食性刺柏的数量减少导致水透明度降低，轮虫在群落总丰度和生物量中的比例增加。