Causal analysis of the diversity of medusae in East China Sea

作     者：Zhaoli XU Mao LIN Qian GAO 

作者机构：Key and Open Laboratory of Marine and Estuary FisheriesMinistry of Agriculture of ChinaEast China Sea Fisheries Research InstituteChinese Academy of Fisheries SciencesShanghai 200090China The Third Institute of OceanographyState Oceanic AdministrationXiamen 361005China 

出 版 物：《Frontiers in Biology》 (生物学前沿（英文版）)

年 卷 期：2008年第3卷第3期

页      面：300-307页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 

基　　金：This study was funded by theMajor Research Plan of the National Natural Science Foundation of China(No.90511005) the National Basic Research Program(No.G2001CB409700).We thank Wang Yunlong,Chen Yuanquan,Yuan Qi,Jiang Mei,He Dehua,Yang Guanmin,Yang Yuanli,Hong Bo and Hang Jindi for sampling,in-door sample processing and data processing.Special thanks to Prof.Zhang Jinbiao for his great work in identification of the species.We also thank Prof.Shen Xiaomin for his insightful suggestion and great efforts in the preparation of the manuscript 

主　　题：East China Sea zooplankton medusae diversity causal analysis 

摘      要：Based on the maritime data collected from 23°30′-33°00′N and 118°30′-128°00′E of the East China Sea(ECS)in four seasons during 1997-2000,the dynamics of medusae diversity and their causes were analyzed.A total of 103 medusae species were identified,and these species mainly distributed in the southern and north-ern offshore areas of the *** diversity index(H′)of medusae was higher in the south than those in the north,higher in summer and winter than in spring and autumn,and higher in offshore than in the nearshore *** species number was closely correlated with H′value,whereas the abundance of species had no significant rela-tionship with the diversity *** lower H′value of the nearshore in spring and autumn resulted from the aggregation of Muggiaea atlantica in the south nearshore and Diphyes chamissonis in the north *** addition,water temperature,followed by salinity,is the main environmental factor influencing the distribution of species *** H′value was related to the water temperature at the 10 m layer in winter and spring,and it was associated with the surface water temperature in summer and with the 10 m-salinity-layer in *** spring and summer,the isoline distribution of H′value reflected the direction of the Taiwan Warm Current and the variation of the water masses in the *** winter,the isoline of the H′value indicated the incursion of Kuroshio *** conclusion,the H′isoline is an good indicator for water masses in ECS.