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Issue:ISSN 1000-7083
          CN 51-1193/Q
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Your Position :Home->Past Journals Catalog->2020 Vol.39 No.5

Research on Zooplankton Community in the Mainstream of Yangtze River and Its Tributaries of Wanzhou Section During Impounding
Author of the article:LAN Bo1, ZHU Chi2*, HUANG Yujing3, LIANG Lijiao1, HU Yanru1
Author's Workplace:1. Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, Chongqing 404020, China;
2. Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing 210036, China;
3. College of Chinese Traditional Medicine, Chongqing Three Gorges Medical College, Chongqing 404120, China
Key Words:Three Gorges Reservoir; Wanzhou; zooplankton; canonical correspondence analysis; community succession
Abstract:In order to provide an insight of the zooplankton community during the impoundment period of the Three Gorges Reservoir, we investigated the water quality and the species composition of zooplankton in November 2017, and further analyzed the relationship between zooplankton species and water quality, and zooplankton succession in the mainstream of the Yangtze River in Wanzhou, Chongqing. The results revealed that the water quality of the Yangtze River was much better than its tributaries. The identified zooplankton could be categorized into 28 genera and 39 species, and protozoa and rotifers were the dominating species. There were 5 dominant species in the mainstream of Yangtze River and 9 in its tributaries. The result of canonical correspondence analysis showed that nitrate and total suspended solid were the main environmental factors which controlled the variation of zooplankton community in winter. For the long-term succession of zooplankton community in the study area and its adjacent areas, it was suggested that the species of protozoa gradually shifted from the mobile-preference type to the stationary-preference type according to the stability of water environment. Comparing to the same period in 2012, the relative abundance of protozoa and rotifers in the current study were higher, while the zooplankton diversity was lower, and these might be associated with the long-term impacts of water level fluctuation and urban water pollution.
2020,39(5): 517-530 收稿日期:2020-02-26
分类号:Q959.1;X524
基金项目:国家青年科学基金项目(41902024;31300462);重庆市科委面上项目(cstc2019jcyj-msxmX0656);重庆市教委青年项目(KJQN20181221);江苏省博士后科研资助项目(1302003C);重庆三峡学院校人才引进项目(17RC08);大学生创新创业训练项目(201810643028)
作者简介:兰波(1984-),男,博士研究生,研究方向为水生态学,E-mail:boblan2004@163.com
*通信作者:朱迟,副研究员,E-mail:zhuchi126@126.com
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