Abstract In this study, the concept of functional traits was used to classify zooplankton into functional groups and their seasonal dynamics were determined in relation to physico-chemical factors in a highly turbid and nutrient-rich wetland. This study revealed a seasonal variation of both physico-chemical factors and biomass of zooplankton functional groups. Water temperature (TEP), total phosphorus (TP), ferrous ion (Fe2+) and total carbon (TC) were significantly higher in summer while water transparency (SD) was notably higher in spring. Zooplankton functional group biomass was higher in summer (5.11 mg/L) followed by winter, autumn and spring (0.91, 0.72 and 0.28 mg/L, respectively). Large copepods and cladoceran carnivore (LCC) was the dominant functional group in spring accounting for about 86.7% of the total biomass. In summer, MCF (Middle copepods and cladocerans filter feeders) was the dominant group probably because of the optimal temperature and availability of nutrients. Pearson correlation and RDA analysis results suggested that Fe2+, TP and TEP were the major factors influencing zooplankton functional groups. Notably, turbidity was not the main factor despite the fact that Small Xingkai Wetland Lake is a very turbid lake. The variation of zooplankton functional groups among seasons highlights the role of physico-chemical factors in structuring zooplankton composition.

中文翻译：

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高浊度富营养小兴凯湿地湖浮游动物功能群的季节动态及其与理化变量的关系

摘要 在本研究中，利用功能性状的概念将浮游动物分类为功能组，并在高度混浊和营养丰富的湿地中根据理化因素确定浮游动物的季节性动态。该研究揭示了浮游动物功能群的理化因素和生物量的季节性变化。夏季水温（TEP）、总磷（TP）、亚铁离子（Fe2+）和总碳（TC）显着升高，而春季水透明度（SD）显着升高。浮游动物功能组生物量在夏季较高（5.11 毫克/升），其次是冬季、秋季和春季（分别为 0.91、0.72 和 0.28 毫克/升）。大型桡足类和枝角类食肉动物（LCC）是春季的主要功能群，约占总生物量的 86.7%。在夏天，MCF（中桡足类和枝角类滤食性动物）是占主导地位的群体，这可能是因为最佳温度和营养物质的可用性。Pearson相关和RDA分析结果表明Fe2+、TP和TEP是影响浮游动物功能群的主要因素。值得注意的是，尽管小兴凯湿地湖是一个非常浑浊的湖泊，但浑浊并不是主要因素。浮游动物功能群在季节间的变化突出了理化因素在构造浮游动物组成中的作用。尽管小兴凯湿地湖是一个非常浑浊的湖泊，但浑浊并不是主要因素。浮游动物功能群在季节间的变化突出了理化因素在构造浮游动物组成中的作用。尽管小兴凯湿地湖是一个非常浑浊的湖泊，但浑浊并不是主要因素。浮游动物功能群在季节间的变化突出了理化因素在构造浮游动物组成中的作用。