长江口2005年4个航次中大型砂壳纤毛虫的水平分布  

Horizontal distribution of large tintinnids in Yangtze River estuary in four cruises in 2005

作　　者：张武昌[1] 王克[1] 肖天[1] 

机构地区：[1]中国科学院海洋研究所海洋生态与环境科学重点实验室,山东青岛266071

出　　处：《海洋科学》2009年第7期6-9,56,共5页Marine Sciences

基　　金：国家自然科学基金项目(40876085);国家重点基础研究规划项目(2006CB400604);国家基金委创新研究群体科学基金项目(40821004)

摘　　要：研究了2005年4个季度用浅海III型网在长江口40个站位采集的浮游生物样品,发现砂壳纤毛虫11种:Codonellopsis ostenfeldi,C.parva,Eutintinnus tenuis,Favella panamensis,Leprotintinnus nordqvisti,Leprotintinnus sp.,Tintinnopsis japonica,T.karajacensis,T.mortensenii,T.radix,T.schotti。Leprotintinnus sp.,最大丰度可达32400个/m3,有的种的最大丰度不足200个/m3,如Codonellopsis parva,E.tenuis和T.mortensenii。冬季T.japonica主要分布于长江口外,Leprotintinnus sp.在春、夏、秋季都主要分布于长江口外,其他种的分布没有明显规律。在4个季度长江口内都没有发现砂壳纤毛虫。Species composition and abundance of large tintinnids （〉76 μm） in the Yangtze River estuary were studied in four seasonal cruises in 2005. Samples were taken by vertically towing a Shallow Water Ⅲ plankton net from bottom to surface. Totally 11 tintinnid species were found： Codonellopsis ostenfeldi, C. parva, Eutintinnus tenuis , Favella panamensis , Leprotintinnus nordqvisti , Leprotintinnus sp., Tintinnopsis japonica , T. karajacensis , T. mortensenii, T. radix, and T. schotti. Maximum abundance of Leprotintinnus sp. was 32400 ind./m^3 while maximum abundance of some species was lower than 200 ind./m^3 （C. parva, E. tenuis and T. mortensenii） o And T. japonica mainly distributed in the area out of Yangtze River mouth in winter. Leprotintinnus sp. occurred in the area out of Yangtze River mouth in spring, summer and autumn. No tintinnid was found inside the Yangtze River in the four cruises.

关 键 词：砂壳纤毛虫 丰度 长江口 

分 类 号：Q958.3[生物学—动物学] Q958.8