[1]陈建琴,孙 婉,钱薇雅,等.江苏泗洪洪泽湖湿地国家级自然保护区后生浮游动物群落结构及影响因子[J].南京师大学报(自然科学版),2024,(03):72-80.[doi:10.3969/j.issn.1001-4616.2024.03.009]
　Chen Jianqin,Sun Wan,Qian Weiya,et al.Characteristics and Influencing Factors of Metazoan Zooplankton Community Structure in Jiangsu Sihong Hongze Lake Wetland National Nature Reserve[J].Journal of Nanjing Normal University(Natural Science Edition),2024,(03):72-80.[doi:10.3969/j.issn.1001-4616.2024.03.009]
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江苏泗洪洪泽湖湿地国家级自然保护区后生浮游动物群落结构及影响因子()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
期数:
2024年03期
页码:
72-80
栏目:
生物学
出版日期:
2024-09-15

文章信息/Info

Title:
Characteristics and Influencing Factors of Metazoan Zooplankton Community Structure in Jiangsu Sihong Hongze Lake Wetland National Nature Reserve
文章编号:
1001-4616(2024)03-0072-09
作者:
陈建琴1; 孙 婉2; 钱薇雅2; 邢雨辉3; 张振华1; 张晨岭1; 汪俊琦2; 常 青2; 胡超超2
(1.江苏第二师范学院生命科学与化学化工学院,江苏 南京 211200)
(2.南京师范大学生命科学学院,江苏 南京 210023)
(3.南京师范大学中北学院,江苏 丹阳 212334)
Author(s):
Chen Jianqin1; Sun Wan2; Qian Weiya2; Xing Yuhui3; Zhang Zhenhua1; Zhang Chenling1; Wang Junqi2; Chang Qing2; Hu Chaochao2
(1.College of Life Science and Chemical Engineering,Jiangsu Second Normal University,Nanjing 211200,China)
(2.School of Life Sciences,Nanjing Normal University,Nanjing 210023 China)
(3.Nanjing Normal University Zhongbei College,Danyang 212334,China)
关键词:
后生浮游动物; 群落结构; 环境因子; 江苏泗洪洪泽湖湿地国家级自然保护区
Keywords:
metazoan zooplankton; community structure; environmental factors; Hongze Lake Wetland National Nature Reserve
分类号:
X176
DOI:
10.3969/j.issn.1001-4616.2024.03.009
文献标志码:
A
摘要:
浮游动物在水生态系统的物质循环、能量流动和信息传递过程中起着重要作用. 为探究江苏泗洪洪泽湖湿地国家级自然保护区后生浮游动物现状,研究于2020年8月—2021年7月对保护区水域的后生浮游动物进行了4次调查. 研究发现后生浮游动物62属112种,其中轮虫32属67种,枝角类17属31种,桡足类13属14种. 后生浮游动物平均密度为1 636.31 ind./L,季节变化对密度有极显著的影响,空间变化对其有显著影响. 研究发现,洪泽湖保护区共有15种优势种,优势种生态位宽度指数为0.14～0.84,生态位重叠指数为0.22～0.95,生态位重叠程度总体较高. Permanova分析结果表明,pH、水温(WT)、总氮(TN)、透明度(SD)是影响保护区后生浮游动物群落结构的主要环境因子. 使用物种多样性指数评价水质,结果显示保护区水体处于轻度-中度污染水平. 本研究可为洪泽湖湿地国家级自然保护区生态环境监测、保护及管理等提供基础资料和科学依据.
Abstract:
Zooplankton is the link between primary producers and other trophic levels. It plays an important role in material circulation,energy flow and information transmission of aquatic ecosystem. In order to explore the status and the dynamics of metazoan zooplankton community structure in Jiangsu Sihong Hongze Lake Wetland National Nature Reserve,4 surveys were conducted in the reserve from August 2020 to July 2021. The study analyzed the metazoan zooplankton community structure,niche characteristics of dominant species and water quality in the reserve. A total of 112 species of metazoan zooplankton belonging to 62 genera were identified,including 67 species of Rotifera belonging to 32 genera,31 species of Cladocera belonging to 17 genera,and 14 species of Copepoda belonging to 13 genera. The average density of metazoan zooplankton was 1636.31 ind./L,with significant seasonal and spatial differences. A total of 15 dominant species of metazoan zooplankton were identified in 4 seasons. The composition of dominant species showed seasonal replacement,in which the structure of dominant species in summer was complex and the structure of other seasons was simple. The niche breadth index of the dominant species ranged from 0.14 to 0.84. According to the niche width of each dominant species in different seasons,the dominant species of metazoan zooplankton in the reserve were divided into 3 groups,wide niche,middle niche and narrow niche,and most species are middle niche. The niche overlap index ranged from 0.22 to 0.95 and the niche overlap index of some species was more than 0.90. The niche overlap degree of dominant species in different seasons varied greatly,and the overall overlap degree was high. The changes of water environment played a leading role in the distribution of metazoan zooplankton community structure. Permanova analysis showed that pH,water temperature(WT),total nitrogen(TN)and secchi depth(SD)were the main environmental factors affecting the community structure of metazoan zooplankton in the reserve. In this study,the main factors affecting the community structure of metazoan zooplankton in the reserve were discussed from the perspective of water physical and chemical factors. All in all,this study showed that the community structure of metazoan zooplankton in the reserve was characterized by a higher proportion of small metazoan zooplankton(Rotifera)than large metazoan zooplankton(Cladocera and Copepoda). Shannon-wiener diversity index,Margalef richness index and Pielou evenness index were used to evaluate the water quality of the reserve,which indicated that the water quality of the Hongze Lake Reserve was at a light to moderate pollution level. The water quality of the reserve still needs to be paid attention to,and ecological management needs to be strengthened. This study can provide basic data and scientific basis for ecological environment monitoring,protection and management in Jiangsu Sihong Hongze Lake Wetland National Nature Reserve.

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备注/Memo

备注/Memo:
收稿日期:2023-07-10.
基金项目:国家自然科学基金项目(41271057).
通讯作者:陈建琴,硕士,教授,研究方向:动物地理学和水生生物学. E-mail:jqchen1102@126.com
更新日期/Last Update: 2024-09-15