洋山深水港工程对附近海域浮游动物多样性的影响  

Effects of the Yangshan deepwater port project on zooplankton diversity in adjacent waters of Hangzhou Bay

作　　者：毕亚梅[1,2] 徐兆礼[1] 陈华 

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]上海海洋大学海洋科学学院,上海201306 [3]上海东海海洋工程勘察设计研究院,上海200137

出　　处：《生态学杂志》2010年第5期933-938,共6页Chinese Journal of Ecology

基　　金：上海市908专项资助项目(PJ1-1)

摘　　要：根据2001、2003—2007年5月和8月在杭州湾附近水域(30°32′N—30°50′N、121°53′E—122°17′E)2个季节12个航次的海洋调查资料,研究了洋山岛附近水域浮游动物的种类组成变化、多样性以及工程对浮游动物群落结构的影响。结果表明:2003—2007年5月种类数变化不明显,8月种类数高峰期出现在2003年,随后逐年下降,糠虾类总体呈上升的趋势,毛颚动物变化不大,2003年受暖流影响,出现多种外海种和热带种;2003—2007年春季Shannon-Wiener物种多样性指数(H′)变化不明显,夏季逐年降低,丰富度(d)下降,均匀度(J′)下降;夏季不同年间的变化主要是个别年份出现了较多的外海种所致,可能与外海暖水势力变化有关;洋山工程对海域浮游动物的多样性变化影响不显著,洋山岛附近海域浮游动物种类组成的变化受外海暖流影响较明显,与洋山工程的开展及进程的关系不明显。Based on the data from two seasonal oceanographic surveys in the adjacent waters of Hangzhou Bay （30°32′N-30°50′N, 121°53′E-122°17′E） in the spring （May） and summer （August） of 2001 and 2003-2007, this paper studied the inter-annual variation of species composition and diversity of zooplankton in the waters, and the effects of the Yangshan deepwater port project on the community structure of the zooplankton. In 2003-2007, less change was observed in the species number in May. The species number was the largest in August 2003, and decreased after then. The species number of Mysidaces had an overall increase, but that of Chaetognatha didn’t change significantly. In 2003, owing to the effects of warm current, many offshore and tropical species appeared. From 2003 to 2007, the Shannon-Wiener index （H′） changed less in spring, but the species richness （d） and species evenness （J′） were in decline in summer. The variation of species diversity in summer was mainly attributed to the appearance of offshore species in certain years, which might be closely associated with the warm water current. In short, there was no significant difference in the zooplankton diversity before and after the construction of Yangshan project, but warm water current had evident effects on the species composition and diversity of the zooplankton.

关 键 词：杭州湾 洋山深水港工程 浮游动物 种类组成 多样性 

分 类 号：Q958.8[生物学—动物学]