文章摘要
王雪辉,邱永松,杜飞雁,林昭进,孙典荣,黄硕琳.北部湾鱼类群落格局及其与环境因子的关系[J].水产学报,2010,34(10):1579~1586
北部湾鱼类群落格局及其与环境因子的关系
Fish community pattern and its relation to environmental factors in the Beibu Gulf
投稿时间:2010-01-29  修订日期:2010-03-25
DOI:10.3724/SP.J.1231.2010.06827
中文关键词: 鱼类种类组成  群落格局  环境因子  北部湾
英文关键词: fish species composition  community pattern  environmental factor  Beibu Gulf
基金项目:中央级公益性科研院所基本科研业务费专项(2010YD10、2009TS08);农业部近海渔业资源调查项目(070404);我国近海海洋综合调查与评价专项(908-01-ST09);广东省“九○八”专项(GD9080205)
作者单位E-mail
王雪辉 中国水产科学研究院南海水产研究所 wxhscs@163.com 
邱永松 中国水产科学研究院南海水产研究所  
杜飞雁 中国水产科学研究院南海水产研究所  
林昭进 中国水产科学研究院南海水产研究所  
孙典荣 中国水产科学研究院南海水产研究所  
黄硕琳 上海海洋大学海洋科学学院  
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中文摘要:
      根据2007年在北部湾海域进行的4航次底拖网调查数据,对北部湾鱼类的种类组成和群落格局进行分析。该调查共采获鱼类323种,隶属于18目101科。以冬季出现种类数最多,为231种;秋季和夏季次之,分别为217种和214种;春季最少,为186种。运用聚类分析和非度量多维标度(NMDS)方法分析了北部湾鱼类群落结构的空间分布,研究表明,该海域鱼类可划分为5个群落,为较为稳定的东北部沿岸群落(群落Ⅰ)、海南岛西岸群落(群落Ⅱ)、北部湾中南部群落(群落Ⅲ)、白龙尾岛附近海域群落(群落Ⅳ)和季节波动较大的琼州海峡西侧群落(群落Ⅴ)。ANOSIN检验表明,各群落间鱼类组成的差异极为显著(R=0.896~0.956,P<0.001)。对不同季节鱼类群落格局与环境因子(水深、底层水温、底层盐度)的相关性分析表明,鱼类群落组成的变化与水深的相关性最好(春季R=0.491,夏季R=0.578,秋季R=0.594,冬季R=0.514),与温度和盐度的相关性较差。
英文摘要:
      Based on data collected by quarterly otter trawl surveys in the Beibu Gulf in 2007,fish species compositions and community pattern were analyzed.A total number of 323 fish species belonging to 101 families and 18 orders were collected during the surveys.The largest number of species was recorded in winter (231 species),followed by those in autumn and summer (217 and 214 species,respectively),and the number of fish species was the smallest in spring(186 species).The spatial pattern of fish community was analyzed using hierarchical clustering and non metric multidimensional scaling.Five station groups based on fish assemblages were indentified.The Group Ⅰ was located in the coastal waters of northeast Beibu Gulf and showed less seasonal variation in distribution.The Group Ⅱ was located in the coastal waters west off Hainan Island.The Group Ⅲ covered a large area of the central and southern waters of the Beibu Gulf,while the Group Ⅳ located near the Bailongwei Island covered the least stations,and the Group Ⅴ can only be identified in spring season to the west Qiongzhou Strait.The ANOSIN tests showed highly significant differences (R=0.896-0.956,P<0.001) in fish assemblages between the station groups.The relationships between changes in fish community pattern and environmental factors (depth,bottom temperature and bottom salinity) were examined.The correlation analysis showed that the water depth was the major environmental factor dominating the fish community pattern,while bottom temperature and salinity contributed less to determining the community pattern.
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