Characteristics of the microzooplankton community in Jiaozhou Bay,Qingdao,China  

作　　者：陈应华 杨宇峰 

机构地区：[1]Institute of Hydrobiology,Jinan University and Key Laboratory of Eutrophication and Red Tide Control,Education Department of Guangdong Province [2]Guangdong Ocean and Fishery Environment Monitoring Center [3]Institute of Oceanology,Chinese Academy of Sciences

出　　处：《Chinese Journal of Oceanology and Limnology》2009年第3期435-442,共8页中国海洋湖沼学报（英文版）

基　　金：Supported by the Knowledge Innovation Project of Chinese Academy of Sciences (No KZCX2-403);a Joint Project of the Natural Science Foundation of China and Guangdong Province (No U0633006)

摘　　要：The species composition and abundance of microzooplankton at 10 marine and five coastal stations （Hongdao, Daguhe, Haibohe, Huangdao and Hangxiao） in the Jiaozhou Bay （Qingdao, China） were studied in 2001. The microzooplankton community was found to be dominated by Tintinnopsis beroidea, Tintinnopsis urnula, Tintinnopsis brevicoUis and Codonellopsis sp. The average abundance of microzooplankton was highly variable among stations. Specifically, the abundance of microzooplankton was higher at inshore stations and lower in the center of the bay （St. 5）, bay mouth （St. 9） and outside the bay （St. 10）. The highest average annual densities （346 ind./L） was observed at St. 3, while the lowest （55 ind./L） was at St. 10. Two abundance peaks were recorded in May （324 ind./L） and February （300 ind./L）. The distribution of microzooplankton in three sampling layers at the 10 stations was relatively homogenous and the abundance decreased slightly as the water depth increased. At coastal stations, the highest average annual density was recorded at Hongdao Station （677 ind./L）, followed by Daguhe Station （616 ind./L）, Haibohe Station （400 ind./L ）, Huangdao Station （275 ind./L） and Hangxiao Station （73 ind./L）. Furthermore, a 24-h sampling analysis conducted at Hangxiao Station revealed that the microzooplankton assemblages were characterized by a bimodal diel vertical migration pattem, with the highest densities occurring at dusk （154 ind./L）, followed by dawn （146 ind./L）, noon （93 ind./L） and midnight （77 ind./L）. The density of microzooplankton in the Jiaozhou Bay was in the middle range of the densities of temperate coastal waters worldwide.The species composition and abundance of microzooplankton at 10 marine and five coastal stations(Hongdao,Daguhe,Haibohe,Huangdao and Hangxiao) in the Jiaozhou Bay(Qingdao,China) were studied in 2001.The microzooplankton community was found to be dominated by Tintinnopsis beroidea,Tintinnopsis urnula,Tintinnopsis brevicollis and Codonellopsis sp.The average abundance of microzooplankton was highly variable among stations.Specifically,the abundance of microzooplankton was higher at inshore stations and lower in the center of the bay(St.5),bay mouth(St.9) and outside the bay(St.10).The highest average annual densities(346 ind./L) was observed at St.3,while the lowest(55 ind./L) was at St.10.Two abundance peaks were recorded in May(324 ind./L) and February(300 ind./L).The distribution of microzooplankton in three sampling layers at the 10 stations was relatively homogenous and the abundance decreased slightly as the water depth increased.At coastal stations,the highest average annual density was recorded at Hongdao Station(677 ind./L),followed by Daguhe Station(616 ind./L),Haibohe Station(400 ind./L),Huangdao Station(275 ind./L) and Hangxiao Station(73 ind./L).Furthermore,a 24-h sampling analysis conducted at Hangxiao Station revealed that the microzooplankton assemblages were characterized by a bimodal diel vertical migration pattern,with the highest densities occurring at dusk(154 ind./L),followed by dawn(146 ind./L),noon(93 ind./L) and midnight(77 ind./L).The density of microzooplankton in the Jiaozhou Bay was in the middle range of the densities of temperate coastal waters worldwide.

关 键 词：Jiaozhou Bay MICROZOOPLANKTON species composition abundance distribution 

分 类 号：Q958.8[生物学—动物学]