广西师范大学学报（自然科学版） ›› 2015, Vol. 33 ›› Issue (4): 127-136.doi: 10.16088/j.issn.1001-6600.2015.04.021

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湘江上游区桂北江段鱼类物种多样性研究

师瑞丹1, 吴志强1,2, 黄亮亮1, 封文利1, 朱召军1, 丁洋1, 胡祎祥1   

  1. 1.桂林理工大学环境科学与工程学院,广西桂林541004;
    2.广西大学生命科学与技术学院,广西南宁530005
  • 收稿日期:2015-05-05 出版日期:2015-12-25 发布日期:2018-09-21
  • 通讯作者: 吴志强(1965—),男,江西南昌人,桂林理工大学教授,博士,博士生导师。E-mail: zqwu@gxu.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(51379038);广西科学研究与技术开发计划项目(桂科攻1355007-14);广西教育厅高校科学研究项目(YB2014151);广西自然科学基金资助项目(2014GXNSFBA118072);博士科研启动项目

Fish Species Diversity of the Upper Xiangjiang River in North Guangxi Province

SHI Rui-dan1, WU Zhi-qiang1,2, HUANG Liang-liang1, FENG Wen-li1, ZHU Zhao-jun1, DING Yang1, HU Yi-xiang1   

  1. 1. College of Environmental Science and Engineering, Guilin University of Technology, Guilin Guangxi 541004, China;
    2. College of Life Science and Technology, Guangxi University,Nanning Guangxi 530005, China
  • Received:2015-05-05 Online:2015-12-25 Published:2018-09-21

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摘要： 2014年4月至2015年1月按季度共4次对湘江上游区桂北江段鱼类物种多样性进行研究:共采集鱼类81种,隶属于5目16科55属,其中鲤形目鱼类种类最多,占总物种数的62.96%;研究区域内的优势物种为宽鳍鱲Zacco platypus、中华沙塘鳢Odontobutis sinensis,分别占总个体数的25.76%和18.57%。鱼类个体数无显著季节变化,但鱼类物种数存在显著季节变化:如夏季和秋季鱼类多样性高,物种比较丰富,而春季和冬季的多样性相对较低,鱼类物种相对少;春季优势度指数相对较高,秋季优势种较明显。此外,鱼类群落无度量多维排序图(NMDS)结果显示,湘江上游区桂北江段鱼类群落结构空间变化显著,但季节性差异不大。

关键词: 鱼类组成, 物种多样性, 湘江

Abstract: Fish Species diversity of the upper Xiangjiang river in north Guangxi Province were investigated seasonally from April 2014 to January 2015. A total of 81 freshwater fish species belonging to 5 orders, 16 families and 55 genera have been recorded. Fish from the Cypriniformes was the main component of fish fauna in north Guangxi province of the upper Xiangjiang river and consisting of 62.96% of all species. The most dominant species were Zacco platypus, and Odontobutis sinensis, accounting for 25.76%, 18.57% of total individuals, respectively. No significant difference was found in the months among the number of individuals but significant difference was observed among the species. For example, the fish diversity was high and species was abundant in the summer and autumn, while the fish diversity and species were relatively lower in the spring and winter. Simpson index (λ) was relatively larger in spring, while dominant species was the most obvious in the autumn. Besides Non-metric Multidimensional Scalings ordination of fish assemblage from upper Xiangjiang river in the north of Guangxi Province. The results showed that fish communities of spatial variation were significantly different, but there was little apparent change associated with the seasons.

Key words: fish composition, species diversity, Xiangjiang river

中图分类号: 

  • Q959.4
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