温州南麂列岛海域硅藻、甲藻群落变化与环境因子的关系  

Relationship between diatoms,dinoflagellates assemblages changes and environmental factors in Nanji Islands Sea Area,Wenzhou

作　　者：萧云朴 李扬[2] 李欢[2] 吕颂辉[2,3] 江天久[2,3] 陈舜 

机构地区：[1]浙江省平阳县海洋与渔业局,浙江平阳325400 [2]华南师范大学生命科学学院,广东省高等学校生态与环境科学重点实验室,广东广州510631 [3]暨南大学赤潮与水环境研究中心,广东广州510632

出　　处：《海洋环境科学》2009年第2期167-169,201,共4页Marine Environmental Science

基　　金：国家自然科学基金重点项目(U0733006);国家重点基础研究发展规划项目(2001CB409709);国家高技术发展项目(2006AA09Z178);温州市科技计划项目(S2006A007)

摘　　要：于2006～2007年之间采集浙江省温州南麂列岛海域水样，研究了硅藻和甲藻群落变化与环境因子的关系。硅藻集群的高峰区主要集中在水温较高的夏季，调查期间共发生赤潮2起，分别出现在2006年8月和10月。甲藻赤潮仅在春季发生，优势种类为原甲藻种类。硅藻赤潮对N的消耗较大，甲藻赤潮对P的消耗较大。南麂海域合适的温度、盐度、丰富的N、P营养盐以及营养盐的及时补充是该海域浮游植物丰度较高和赤潮频繁发生的主要原因。An investigation was carried out from Apr. 2006 to Mar. 2007 at four sampling stations in Nanji Islands Sea Area. The water samples, ambient chemical, physical and meteorological data were examined. The highest and higher cell abundance of diatoms almost are in the summer （ from Aug. to Dee. ）. Two blooms of diatoms were found, arising in Aug. and Dec. respectively. The dinoflagellates blooms just occurred in the spring. Nutrient elements needed by diatoms and dinoflagellates are different. They were higher prior to the blooms and large amounts of nutrients were assimilated as cell abundance increased. DIN nearly reached to the minimum at the maximum cell abundance of diatoms. High DIP promoted the blooms of dinoflagellates and almost fully used by the dinoflagellates blooms. The results shown that favorable water temperature and nutrient elements are the major causes of high cell abundance of phytoplankton and frequent outbreaks of blooms in Nanji islands sea area. Moreover, high cell abundance brought by the physical factors such as wind and current from Zhejiang Province coast to Nanji Islands Sea Area, play an important role in the occurrence of blooms.

关 键 词：硅藻 甲藻 南麂列岛海域 环境因子 

分 类 号：Q178.53[生物学—水生生物学] X55[生物学—普通生物学]