EUTROPHICATION IMPACT ON ZOOPLANKTON COMMUNITY: A SHALLOW LAKE APPROACH
EUTROPHICATION IMPACT ON ZOOPLANKTON COMMUNITY: A SHALLOW LAKE APPROACH
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富营养化对浮游动物群落的影响：浅湖方法
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
I. Lalić
中科院分区：
文献类型：
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作者：
Maria Špoljar;T. Tomljanović;I. Lalić
在一个浑浊的浅湖中对浮游动物群落进行了调查，目的是分析（i）生态条件与群落之间的关系，以及（ii）从非生物和生物指标推断的营养状态。结果显示，与远洋植被区（17 个类群）相比，滨海植被区的多样性（30 个类群）有所增加。滨海和远洋轮虫的多样性和丰度占主导地位，分别为 15 和 27 个类群，分别占 58% 和 71%。因此，根据以公会比例显示的摄食偏好，选择它们来近似系统营养水平。滨海（– 0.36）和远洋（– 0.31）的平均行会比率表明微毛轮虫的盛行。它们主要以细菌和碎屑悬浮液为食，因此与环境参数一起表明该湖的营养水平很高。据推测，人为富营养化造成的浑浊不仅影响了浮游动物，还影响了初级生产者和鱼类的生物群落组合。
Zooplankton communities were investigated in a turbid shallow lake with an aim to analyze (i) relationships between ecological conditions and the communities and (ii) trophic state inferred from abiotic and biotic indicators. According to results emerged littoral vegetated zone increased diversity (30 taxa) in comparison to the pelagial (17 taxa). Rotifers dominated in terms of diversity and abundance in littoral and pelagial, 15 and 27 taxa, 58 and 71%, respectively. Thus, they were chosen for approximation of the system trophic level according to their feeding preferences exhibited as guild ratio. Mean guild ratios in littoral (– 0.36) and pelagial (– 0.31) suggested the prevalence of microfagous rotifers. They fed mostly on bacteria and detritus suspension, thus together with environmental parameters indicated high trophic level of the lake. It is supposed that turbidity resulted from anthropogenic eutrophication has affected biocoenosis assemblage, not only zooplankton but also the primary producers and the fish.