海洋学研究 ›› 2013, Vol. 31 ›› Issue (3): 76-82.

• 研究论文 • 上一篇    下一篇

春季东海近岸表层浮游植物群落结构及其与环境因子的关系

肖武鹏1,2, 柳欣1,2, 黄邦钦*1,2   

  1. 1.福建省海陆界面生态环境重点实验室,福建 厦门 361102;
    2.厦门大学 环境与生态学院,福建 厦门 361102
  • 收稿日期:2013-03-18 修回日期:2013-05-20 出版日期:2013-09-15 发布日期:2022-11-29
  • 通讯作者: *黄邦钦,教授,E-mail:bqhuang@xmu.edu.cn
  • 作者简介:肖武鹏(1987-),男,湖南邵阳市人,硕士研究生,主要从事海洋生态学研究。E-mail: xiaowupeng1@163.com
  • 基金资助:
    国家重点基础研究发展计划项目资助(2011CB403603);国家自然科学基金项目资助(41176112);国家海洋公益性行业科研专项经费项目资助(201105021-03)

Phytoplankton community structure and its environmental controlling in the nearshore surface water of the East China Sea in spring

XIAO Wu-peng1,2, LIU Xin1,2, HUANG Bang-qin*1,2   

  1. 1. Fujian Provincial Key Laboratory of Coastal Ecology and Environmental Studies, Xiamen 361102, China;
    2. College of the Environment and Ecology, Xiamen University, Xiamen 361102, China
  • Received:2013-03-18 Revised:2013-05-20 Online:2013-09-15 Published:2022-11-29

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摘要： 采用HPLC-CHEMTAX方法分析了2008年春季东海近岸海域的表层浮游植物群落结构及其与环境因子的关系。结果表明,调查区表层浮游植物优势类群为硅藻和甲藻,对叶绿素a的平均贡献率分别为42%和32%。硅藻和甲藻均适于生长在低温、低盐和高氮磷比的环境,但硅藻水华发生在温度较低、盐度较高、氮磷比较高的长江冲淡水与外海水交汇的盐度锋面上,而甲藻水华发生在温度较高、盐度较低、氮磷比较低的冲淡水与台湾暖流交汇的温度锋面上。LOWESS回归表明,叶绿素a和甲藻分别随温度和盐度升高呈先增后降的趋势,硅藻随温度和盐度变化波动较大。叶绿素a和硅藻随氮磷比升高而递增,甲藻随氮磷比的变化波动较大。

关键词: 浮游植物群落结构, 叶绿素a, 春季水华, 环境因子, 东海近岸

Abstract: Using HPLC-CHEMTAX method, pigments data collected from the nearshore surface water of the East China Sea in spring of 2008 were analyzed for understanding phytoplankton community structure and relationships with environmental factors. Results showed that the dominant groups are diatoms and dinoflagellates, which averagely contributed to chlorophyll a (Chl a) up to 42% and 32%, respectively. Both diatoms and dinoflagellates preferred in the environment with lower temperature, lower salinity, and higher N/P ratio, but the diatoms bloom occurred in the salinity front formed by the interaction of the Changjiang diluted water and the open ocean water which is higher in salinity and lower in temperature and N/P ratio, while the dinoflagellates bloom occurred in the temperature front formed by the interaction of the Changjiang diluted water and the Taiwan Warm Water which is higher in temperature, lower in salinity and N/P ratio. LOWESS results revealed that both Chl a and dinoflagellates increased incipiently and then decreased as temperature or salinity increasing, while relationships between diatoms and temperature or salinity showed a larger fluctuation. Both Chl a and diatoms increased as N/P ratio increasing, while the relationship between dinoflagellates and N/P ratio displayed a larger fluctuation.

Key words: phytoplankton community, chlorophyll a, spring bloom, environmental factor, nearshore of the East China Sea

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