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中国农学通报

中国农学通报 ›› 2020, Vol. 36 ›› Issue (21): 75-81.doi: 10.11924/j.issn.1000-6850.casb20200200137

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

鲥鯸淀秋季浮游植物群落与水环境相关性分析

齐延凯1, 李丹丹2, 陈曦1,2, 郭楠楠3, 裘丽萍2, 董媛媛1, 孟顺龙1,2(), 陈家长1,2()   

  1. 1 南京农业大学无锡渔业学院,江苏无锡 214081
    2 中国水产科学研究院淡水渔业研究中心/农业部长江下游渔业资源环境科学观测实验站/中国水产科学研究院内陆渔业生态环境和资源重点开放实验室,江苏无锡 214081
    3 上海海洋大学,上海 201306
  • 收稿日期:2020-02-23 修回日期:2020-03-23 出版日期:2020-07-25 发布日期:2020-07-21
  • 通讯作者: 孟顺龙,陈家长
  • 作者简介:齐延凯,男,1995年出生,在读硕士,主要从事渔业生态环境和水产品质量安全方面的研究工作。通信地址：214081 江苏省无锡市滨湖区山水东路9号 中国水产科学研究院淡水渔业研究中心,Tel：0510-85559936,E-mail：936568827@qq.com。
  • 基金资助:
    农业农村部白洋淀专项资金资助“白洋淀水生生物资源环境调查及渔业生态修复示范工程”

The Correlation Between Phytoplankton Community and Water Environment in Autumn in Shihoudian Lake

Qi Yankai1, Li Dandan2, Chen Xi1,2, Guo Nannan3, Qiu Liping2, Dong Yuanyuan1, Meng Shunlong1,2(), Chen Jiazhang1,2()   

  1. 1 Wuxi Fishery College, Nanjing Agricultural University, Wuxi Jiangsu 214081
    2 Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences/Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Yangtze River, Ministry of Agriculture/ Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Wuxi Jiangsu 214081
    3 Shanghai Ocean University, Shanghai 201306
  • Received:2020-02-23 Revised:2020-03-23 Online:2020-07-25 Published:2020-07-21
  • Contact: Meng Shunlong,Chen Jiazhang

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摘要：

为充分了解鲥鯸淀浮游植物群落结构及其与环境因子之间的关系,采用物种相似性指数、均匀度指数、多样性指数等指标分析2018年秋季鲥鯸淀浮游植物的群落结构特征。结果表明：鲥鯸淀检出绿藻(Chlorophyta)、硅藻(Bacillariophyta)、蓝藻(Cyanophyta)、裸藻(Euglenophyta)、隐藻(Cryptophyta)、甲藻(Pyrrophyta)6门99种,浮游植物的数量在3.68×107~8.22×107 cells/L,生物量在18.96~200.9 mg/L;各采样点相似性指数变化在0.26~0.52,介于轻度相似和中度相似,相似性较低;优势度分析显示值在0.07~0.31,该水域浮游植物优势度较低,种类较多;多样性和均匀度分析结果分别在4.05~4.82与0.7~0.85,表明该地区秋季浮游植物群落结构较稳定;水体综合营养状态指数值（TLI值）表明该地区处于轻度富营养与中度富营养状态之间,相关性分析结果显示以氮、磷为主的环境因子影响着浮游植物群落结构的变化。鲥鯸淀秋季水体呈中度富营养状态,浮游植物群落结构较稳定,氮、磷为主的营养元素对浮游植物群落结构的变化有较大的影响。

关键词: 鲥鯸淀, 浮游植物, 群落结构, 特征, 水质评价

Abstract:

To fully understand the community structure of phytoplankton and its relationship with environmental factors, the species similarity index, evenness index and diversity index were used to analyze the community structure characteristics of phytoplankton in fall of Shihoudian Lake. The results show that 99 species of algae were detected, which belong to 6 phylums including Chlorophyta, Bacillariophyta, Cyanophyta, Euglenophyta, Cryptophyta and Pyrophyta, in the fall of the same year. The number of phytoplankton varies from 3.68×107 to 8.22×107cells/L. The biomass of phytoplankton ranges from 18.96 mg/L to 200.9 mg/L. The similarity index varies from 0.26 to 0.52, which is between slight and moderate similarities, with low similarity. The values of dominance analysis range from 0.07 to 0.31 in phytoplankton, which means that the dominance of phytoplankton is low, and there are various phytoplankton species. The results of diversity and evenness analysis are between 4.05-4.82 and 0.7-0.85, indicating that the community structure of phytoplankton is relatively stable in autumn. The water quality test results show that the value of TLI is between mild and moderate eutrophication. Correlation analysis shows that the environmental factors such as nitrogen and phosphorus affect the change of phytoplankton community structure. In autumn, the water body of Shihoudian Lake is moderately eutrophic, the community structure of phytoplankton is relatively stable, and the main nutrient elements of nitrogen and phosphorus have a greater impact on the changes of community structure of phytoplankton.

Key words: Shihoudian Lake, phytoplankton, community structure, characteristic, water quality assessment

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