文章摘要
基于枝角类和桡足类多样性的白洋淀水环境监测与评价
The Evaluation and Monitoring of the Aquatic Environment Based on the Diversity of Cladocera and Copepods in Baiyangdian Lake
投稿时间:2020-04-30  修订日期:2020-08-26
DOI:
中文关键词: 白洋淀  枝角类  桡足类  群落组成结构  环境相关性分析
英文关键词: Baiyangdian  crustacean zooplankton  community structure  environment correlation analysis
基金项目:教育部留学回国基金(201808130270);河北省高层次人才基金;河北省自然基金(C2019201390).
作者单位邮编
孙枭琼 河北大学 071002
崔铁峰 河北大学 生命科学学院 071002
李子竹 河北大学 生命科学学院 071002
王宏伟 河北大学 生命科学学院 071002
肖国华 河北省海洋与水产科学研究院 066000
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中文摘要:
      雄安新区的建立促使白洋淀水环境及生物资源监测与保护尤为重要。为研究白洋淀枝角类和桡足类群落结构时空变化特征及与水环境因子的相互关系,运用典型相关分析(CCA,Canonical correlation analysis)对2019年春季、夏季、秋季所测定的白洋淀枝角类和桡足类丰度、多样性指数及水环境因子进行多元统计分析。基于DNA条形码技术对白洋淀枝角类和桡足类进行鉴定,共8 科17属26种,全年分布的优势种有简弧象鼻溞(Bosmina coregoni)、透明温剑水蚤(Thermocyclops hvalinus)和胸饰外剑水蚤(Ectocyclops phaleratus)。丰度和生物多样性指数特征存在时空差异,主要表现为区域性分布变化大于季节性变化,且在空间上均表现为南部区域大于北部区域。枝角类和桡足类与水环境相关性结果表明,温度(T)、透明度(TMD)、营养盐等通过影响枝角类和桡足类生长发育、摄食、繁殖等活动来调节其丰度及群落组成结构特征。而S、Pb、Zn为关键影响因子,对枝角类和桡足类丰度呈显著负相关。对白洋淀进行长期的物种研究和生态环境监测及保护,可以为水利工程实施和雄安新区建设提供参考,实现资源可持续利用和发展。
英文摘要:
      It is more important to monitor and protect the aquatic environment and biological resources in Baiyangdian Lake because of Xiong'an New Area. In order to investigate the spatial and temporal variation characteristics of the community structure of Cladocera and Copepods and their relationship with aquatic environmental factors in Baiyangdian. The Canonical correlation analysis (CCA) was used to analyze the abundance, diversity index and aquatic environmental factors of Cladocera and Copepods in Baiyangdian that measured in May, August and October 2019. Based on the technology of DNA barcoding, the species of Cladocera and Copepods were identified 26 species belonging to 8 families, 17 genera. Among the dominant species distributed are Bosmina coregoni, Thermocyclops hvalinus and Ectocyclops phaleratus throughout the year 2019. The spatial and temporal characteristics of abundance and diversity index are different. The mainly expression is that the variation of regional distribution is larger than the seasonal variation, and it is larger in the southern region than in the northern region in space. Analysis of correlation between Cladocera and Copepods community structure and aquatic environment, the results showed that temperature, transparency, nutrients and other environmental factors affected the growth, development, feeding and other activities of Cladocera and Copepods as the main environmental factors affecting their abundance and community structure characteristics. S, Pb and Zn are the key influencing factors, which have significant negative effects on Cladocera and Copepods. Therefore, the long-term ecological environment monitoring and species researching in Baiyangdian provide reference for the implementation of aquatic conservancy projects and Xiong'an New Area.
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