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中国农学通报 ›› 2021, Vol. 37 ›› Issue (30): 139-146.doi: 10.11924/j.issn.1000-6850.casb2020-0554

所属专题: 水产渔业

• 水产·渔业 • 上一篇    下一篇

长江镇江和畅洲水域鱼类群落组成及环境影响因子

王召根1(), 曹过2, 潘杰1, 田佳丽3, 王媛3, 刘凯3()   

  1. 1江苏镇江长江豚类省级自然保护区管理处,江苏镇江 212000
    2上海海洋大学 水产与生命学院,上海 201306
    3农业农村部长江下游渔业资源环境科学观测实验站,中国水产科学研究院淡水渔业研究中心,江苏无锡 214081
  • 收稿日期:2020-10-15 修回日期:2021-02-08 出版日期:2021-10-25 发布日期:2021-12-08
  • 通讯作者: 刘凯
  • 作者简介:王召根,男,1987年出生,江苏大丰人,工程师,硕士,主要从事自然生态及渔业资源保护研究。通信地址:212000 江苏省镇江市南徐大道699号镇江市自然资源和规划局南楼306室;E-mail: scwzg163@163.com
  • 基金资助:
    农业财政专项“长江渔业资源与环境调查”(CJDC-2017-22);财政拨款政府性基金项目“三峡工程运行安全综合监测系统水生生物与渔业资源监测站(下游站)”(2019-10-160)

The Fish Community Structure and Its Relationship with Environmental Factors in Zhenjiang Hechang Section of the Yangtze River

Wang Zhaogen1(), Cao Guo2, Pan Jie1, Tian Jiali3, Wang Yuan3, Liu Kai3()   

  1. 1Zhenjiang Administrative Office of Yangtze Dolphin Provincial Nature Reserve, Zhenjiang Jiangsu 212000
    2Collage of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306
    3Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Yangtze River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi Jiangsu 214081
  • Received:2020-10-15 Revised:2021-02-08 Online:2021-10-25 Published:2021-12-08
  • Contact: Liu Kai

摘要:

为了解长江镇江段和畅洲鱼类群落组成现状及其与水环境因子的相关性,本研究于2016年11月—2017年10月在长江镇江和畅洲水域进行周年调查,运用冗余分析法(RDA)分析鱼类群落组成与环境因子的相关关系。结果显示,共采集鉴定鱼类79种,隶属于9目17科57属,其中鲤形目鱼类占据绝对优势。部分水环境因子如正磷酸盐、水温、水深对鱼类群落组成具有显著影响(P<0.05),草鱼、鲫与正磷酸盐浓度相关性最大,鳡、贝氏䱗与水深的相关性最大,蒙古鲌、青鱼与水温的相关性最大。潮汐也是影响鱼类群落组成的关键因子,总体上表现为大潮期的渔获物种数和渔获尾数较多,但差异不显著。研究结果补充了长江下游段鱼类的基础数据,对该流域渔业资源评估与保护提供了科学依据。

关键词: 长江镇江段, 和畅洲, 鱼类群落, 水环境因子, 潮汐作用

Abstract:

To study the fish community structure and their correlation with environmental factors in Zhenjiang Hechang section of the Yangtze River, the fishery-annual survey was conducted in November of 2016 to October of 2017. The Redundancy analysis (RDA) was used to study the correlation between fish community and environmental factors in this section. A total of 79 species were collected, which belongs to 57 genera, 17 families and 9 orders. The Cypriniformes had the maximum ratio. The results show that orthophosphate, water temperature and water depth have significant influence on the composition of fish community (P<0.05). Ctenopharyngodon idellus and Carassius auratus have the biggest correlation with the concentration of orthophosphate, Elopichthys bambusa and Hemiculter bleekeri have the biggest correlation with the water depth, Culter alburnus and Mylopharyngodon piceus have the biggest correlation with the water temperature. The tide is also a key factor affecting the composition of fish community, which is generally manifested as a large number of fish species and quantity in the spring tide period, but the difference is not significant. The research could supplement the basic data of fish and provide a scientific basis for the assessment and protection of fishery resources in the Yangtze River basin.

Key words: Zhenjiang section of the Yangtze River, Hechang islet, fish community structure, water environmental factor, tidal process

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