Variations of fish composition and diversity related to environmental variables in shallow lakes in the Yangtze River basin
文献类型：期刊论文
| 作者 | Cheng, Lin1,2,3; Lek, Sovan3; Loot, Geraldine3; Lek-Ang, Sithan3; Li, Zhongjie1 |
| 刊名 | AQUATIC LIVING RESOURCES
 |
| 出版日期 | 2010-10-01 |
| 卷号 | 23期号:4页码:417-426 |
| 关键词 | Freshwater fish Environmental variables Lake Fish diversity CCA PCA Yangtze River basin |
| ISSN号 | 0990-7440 |
| 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 |
| 中文摘要 | 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. |
| 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. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Fisheries; Marine & Freshwater Biology |
| 类目[WOS] | Fisheries ; Marine & Freshwater Biology |
| 研究领域[WOS] | Fisheries ; Marine & Freshwater Biology |
| 关键词[WOS] | SPECIES RICHNESS ; BIOTIC INTEGRITY ; COMMUNITY STRUCTURE ; BIODIVERSITY ; ASSEMBLAGES ; COMPETITION ; PATTERNS ; WATERS ; CHINA ; HETEROGENEITY |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [30830025, 30900182]; Ministry of Agriculture of China [200903048-04] |
| 语种 | 英语 |
| WOS记录号 | WOS:000286975000008 |
| 公开日期 | 2011-04-14 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/15470]  |
| 专题 | 水生生物研究所_淡水生态学研究中心_期刊论文 |
| 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 |
| 推荐引用方式 GB/T 7714 | Cheng, Lin,Lek, Sovan,Loot, Geraldine,et al. Variations of fish composition and diversity related to environmental variables in shallow lakes in the Yangtze River basin[J]. AQUATIC LIVING RESOURCES,2010,23(4):417-426. |
| APA | Cheng, Lin,Lek, Sovan,Loot, Geraldine,Lek-Ang, Sithan,&Li, Zhongjie.(2010).Variations of fish composition and diversity related to environmental variables in shallow lakes in the Yangtze River basin.AQUATIC LIVING RESOURCES,23(4),417-426. |
| MLA | Cheng, Lin,et al."Variations of fish composition and diversity related to environmental variables in shallow lakes in the Yangtze River basin".AQUATIC LIVING RESOURCES 23.4(2010):417-426. |
入库方式： OAI收割
来源：水生生物研究所
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