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学科主题: Fisheries; Marine & Freshwater Biology
题名: Variations of fish composition and diversity related to environmental variables in shallow lakes in the Yangtze River basin
作者: Cheng, Lin1, 2, 3; Lek, Sovan3; Loot, Geraldine3; Lek-Ang, Sithan3; Li, Zhongjie1
通讯作者: Li, ZJ, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China ; zhongjie@ihb.ac.cn
关键词: Freshwater fish ; Environmental variables ; Lake ; Fish diversity ; CCA ; PCA ; Yangtze River basin
刊名: AQUATIC LIVING RESOURCES
发表日期: 2010-10-01
DOI: 10.1051/alr/2011001
卷: 23, 期:4, 页:417-426
收录类别: SCI
文章类型: Article
部门归属: [Cheng, Lin; Li, Zhongjie] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Cheng, Lin] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; [Cheng, Lin; Lek, Sovan; Loot, Geraldine; Lek-Ang, Sithan] Univ Toulouse 3, CNRS, UMR EDB 5174, F-31062 Toulouse, France
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Natural Science Foundation of China [30830025, 30900182]; Ministry of Agriculture of China [200903048-04]
类目[WOS]: Fisheries ; Marine & Freshwater Biology
研究领域[WOS]: Fisheries ; Marine & Freshwater Biology
摘要: Variations in fish communities of shallow lakes in the Yangtze basins were investigated from September 2007 to September 2009. Six lakes were chosen for comparative study of species composition and diversity in relation to environmental variations. Lake heterogeneity was described with environmental physico-chemical variables, using principal component analysis. Sixteen families, composed of 75 species of fish were found in the studied lakes, Cyprinidae being the dominant group. Fish species were divided by habitat preference and trophic guild: benthopelagic and herbivorous fish were the most common guilds in all lakes. Species diversity and richness were significantly higher in spring, while the evenness, expressed by equitability of Simpson's index, was not significantly different among seasons. Species richness and diversity were significantly higher in vegetated lakes (e. g. Liangzihu Lake) than in non-vegetated lakes (e. g. Biandantang Lake), with the largest area (Liangzihu Lake) harbouring the largest species richness and the greatest diversity. The relationship between environmental variables and fish assemblage were analysed using canonical correspondence analysis (CCA). The dominant gradients describing species composition and abundance among the sampling sites were: total phosphorus, total nitrogen, chlorophyll a, transparency and water depth. Our study led to the following conclusions: 1) the water quality was better - i.e. high transparency, low total phosphorus (TP) and total nitrogen (TN) and chlorophyll a- in vegetated lakes than in unvegetated lakes; 2) vegetated lakes had higher fish diversity than unvegetated lakes; 3) fish relative abundance (CPUE: number of fish per fishing pass) was significantly related to water chemical parameters. Consequently, the details of the findings are useful and relevant for developing suitable conservation strategies to sustain the integrity of fish communities in these lakes.
英文摘要: Variations in fish communities of shallow lakes in the Yangtze basins were investigated from September 2007 to September 2009. Six lakes were chosen for comparative study of species composition and diversity in relation to environmental variations. Lake heterogeneity was described with environmental physico-chemical variables, using principal component analysis. Sixteen families, composed of 75 species of fish were found in the studied lakes, Cyprinidae being the dominant group. Fish species were divided by habitat preference and trophic guild: benthopelagic and herbivorous fish were the most common guilds in all lakes. Species diversity and richness were significantly higher in spring, while the evenness, expressed by equitability of Simpson's index, was not significantly different among seasons. Species richness and diversity were significantly higher in vegetated lakes (e. g. Liangzihu Lake) than in non-vegetated lakes (e. g. Biandantang Lake), with the largest area (Liangzihu Lake) harbouring the largest species richness and the greatest diversity. The relationship between environmental variables and fish assemblage were analysed using canonical correspondence analysis (CCA). The dominant gradients describing species composition and abundance among the sampling sites were: total phosphorus, total nitrogen, chlorophyll a, transparency and water depth. Our study led to the following conclusions: 1) the water quality was better - i.e. high transparency, low total phosphorus (TP) and total nitrogen (TN) and chlorophyll a- in vegetated lakes than in unvegetated lakes; 2) vegetated lakes had higher fish diversity than unvegetated lakes; 3) fish relative abundance (CPUE: number of fish per fishing pass) was significantly related to water chemical parameters. Consequently, the details of the findings are useful and relevant for developing suitable conservation strategies to sustain the integrity of fish communities in these lakes.
关键词[WOS]: SPECIES RICHNESS ; BIOTIC INTEGRITY ; COMMUNITY STRUCTURE ; BIODIVERSITY ; ASSEMBLAGES ; COMPETITION ; PATTERNS ; WATERS ; CHINA ; HETEROGENEITY
语种: 英语
WOS记录号: WOS:000286975000008
ISSN号: 0990-7440
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/15470
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Univ Toulouse 3, CNRS, UMR EDB 5174, F-31062 Toulouse, France

Recommended Citation:
Cheng, Lin; Lek, Sovan; Loot, Geraldine; Lek-Ang, Sithan; Li, Zhongjie.Variations of fish composition and diversity related to environmental variables in shallow lakes in the Yangtze River basin,AQUATIC LIVING RESOURCES,2010,23(4):417-426
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