东海毛颚类种类组成和多样性  

Study on species composition and diversity of Chaetognatha in the East China Sea

作　　者：徐兆礼[1] 戴一帆[2] 陈亚瞿[1] 

机构地区：[1]中国水产科学研究院东海水产研究所农业部海洋与河口渔业重点开放实验室,上海200090 [2]复旦大学生命科学学院,上海200433

出　　处：《上海水产大学学报》2004年第4期304-309,共6页Journal of Shanghai Fisheries University

基　　金：国家重点基础研究发展规划(973)项目(G1999043707)海洋生物资源补充调查(HY-126-02)

摘　　要：根据1997～2000年东海23°30′～33°N、118°30′～128°E海域4个季节海洋调查资料,对东海毛颚类种类组成、多样性分布特征及与环境关系进行分析。结果表明:春、夏季毛颚类种类最丰富(25种),冬季次之(23种),秋季种数最低(21种);冬、春季毛颚类种数仅与表层温度相关,夏季与表层温度、表层盐度二元线性相关,秋季与表层盐度相关;冬、春季毛颚类多样性和丰富度指数值由北向南,由近海向外海逐渐增高,夏季近海和外海差异缩小,秋季多样性指数值为4季最低。Based on the data of four seasonal investigation in the East China Sea (23°30′-33°N、118°30′-128°E)in 1997-2000, this paper dealt with the approach for species number and diversity of Chaetognatha. Results showed that number of specie of Chaetognatha was the highest in spring and summer (25 species), the second in winter (23 species) and the lowest in autumn (21 species). Regression analysis result showed that species number of Chaetognatha was positively related to temperature only in winter and spring, to temperature and salinity in summer, to salinity only in autumn. The diversity degree H′and abundance degree d value of Chaetognatha which was the lowest in autumn were raised gradually from northern of the East China Sea to southern and from offshore to outside sea in spring and winter. The H′difference of Chaetognatha between offshore and outside sea was approached in summer.

关 键 词：东海 浮游动物 毛颚动物 多样性 种类组成 

分 类 号：S932.8[农业科学—渔业资源]