中国南海西部浮游植物对中尺度涡的响应  

The Response of Phytoplankton to Mesoscale Eddies in Western South China Sea

作　　者：钟超[1,2] 肖武鹏[1,2] 黄邦钦[1,2] 

机构地区：[1]福建省海陆界面生态环境重点实验室,福建厦门361005 [2]厦门大学环境与生态学院,福建厦门361005

出　　处：《海洋科学进展》2013年第2期213-220,共8页Advances in Marine Science

基　　金：国家自然科学基金项目--典型海区基于功能群的浮游植物群落结构及其与颗粒有机碳输出的耦合(40925018)

摘　　要：2011-09应用高效液相色谱分离技术并结合CHEMTAX软件研究了中国南海西部冷涡和暖涡区浮游植物的群落结构组成。结果表明,南海西部优势类群为定鞭金藻、聚球藻和原绿球藻。中尺度涡影响了总叶绿素a(Chl-a)的垂直分布和浮游植物群落组成,暖涡使叶绿素最大层下移,但冷涡并未使叶绿素最大层上移;同时,暖涡区定鞭金藻贡献量减少,原绿球藻和聚球藻贡献量增加,而冷涡区硅藻贡献量增加,聚球藻贡献量减少。中尺度涡并未显著影响南海西部浮游植物优势类群的优势地位,但其对水柱积分生物量的影响不同,暖涡区总叶绿素a显著增加,而冷涡区总叶绿素a无显著变化。High-performance liquid chromatography was used to quantify the pigments and CHEMTAX cal- culation program was applied to estimate the contribution of the phytoplankton groups in cold eddy and warm eddy in western South China Sea （SCS） during September, 2011. The results showed that the domi- nant groups in western SCS were Haptophytes, Synechococcus and Prochlorococcus. Mesoscale eddies in- fluenced the vertical distribution of total chlorophyll a and phytoplankton community structure. The depth of chlorophyll maximum deepened in warm eddy, but did not shallowed in cold eddy. In the meantime, the contribution of Haptophytes decreased but the Synechococcus and Prochlorococcus increased in warm eedy, while the contribution of Synechococcus decreased but Diatoms increased in cold eddy. Mesoscale eddies did not significantly influence the dominance of the dominant groups. Total chlorophyll a significantly in- creased at warm eddy, ＇while it did not change much at cold eddy.

关 键 词：浮游植物群落结构 总叶绿素a 冷涡 暖涡 南海西部 

分 类 号：Q178.53[生物学—水生生物学] X834[生物学—普通生物学]