Spatiotemporal Variation of Planktonic Rotifers in Surface Water of a Eutrophic Reservoir in the Southern Subtropical Region of China (2011-2020)
文献类型： 外文期刊
作者： Gao, Yuan 1 ; Lai, Zini 1 ; Liu, Erchun 1 ; Yang, Wanling 1 ; Liu, Qianfu 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Guangzhou, Peoples R China
2.Minist Agr & Rural Affairs, Fishery Ecol Environm Monitoring Ctr Pearl River B, Guangzhou, Peoples R China
3.Guangzhou Sci Observing & Expt Stn Natl Fisheries, Guangzhou, Peoples R China
4.Key Lab Aquat Anim Immune Technol Guangdong Prov, Guangzhou, Peoples R China
5.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai, Peoples R China
关键词： eutrophication; planktonic rotifers; community structure; diversity index; surface water
期刊名称：INLAND WATER BIOLOGY （ 影响因子：0.9； 五年影响因子：0.8 ）
ISSN： 1995-0829
年卷期： 2023 年 16 卷 2 期
页码：
收录情况： SCI
摘要： The trophic status of a reservoir in the southern subtropical region of China was evaluated by non-biological environmental factors from 2011 to 2020. The relationship between the community structure of planktonic rotifers and eutrophication was examined based on the species composition, dominant species, standing crop, and biodiversity index of the planktonic rotifers in the surface water. The results showed that the reservoir was continually slightly eutrophic. The dominant species of planktonic rotifers were mesosaprobic species such as Polyarthra trigla and Brachionus angularis. The overall abundance fluctuated between 438 and 1360 ind./L; biomass fluctuated between 520 and 1613 mu g/L, and the biodiversity index fluctuated between 1.27 and 2.43. Redundancy analysis showed that chlorophyll a content, water transparency, total phosphorus, and water temperature had significant impacts on the abundance of planktonic rotifers. The results demonstrate a close relationship between the community structure of planktonic rotifers and eutrophication. In other words, eutrophication was the main cause of the changes in the community structure of planktonic rotifers in surface water.
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