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当前位置: 首页 > 文章 > 胶州湾叶绿素a浓度及浮游植物的粒级组成 应用生态学报 2009,20 (10) 2468-2474
Position: Home > Articles > Chlorophyll-a concentration and phytoplankton size-fractionated composition in Jiaozhou Bay Chinese Journal of Applied Ecology 2009,20 (10) 2468-2474

胶州湾叶绿素a浓度及浮游植物的粒级组成

作  者：
潘胜军;沈志良
单  位：
中国科学院海洋研究所海洋生态与环境科学重点实验室;中国科学院研究生院
关键词：
叶绿素a;浮游植物;粒级组成;胶州湾
摘  要：
2008年2、5、8和11月对胶州湾及邻近水域中表层叶绿素a浓度和浮游植物粒级组成进行了调查.结果表明:胶州湾内和湾外表层叶绿素a年平均浓度分别为4.90和2.03mg·m-3;叶绿素a浓度的平面分布呈现自东北部及近岸向中部、南部及湾外递减的趋势;叶绿素a浓度季节变化明显,冬季和夏季浓度较高,春季次之,呈现温带海域双峰型的变化趋势.胶州湾浮游植物粒级组成以微型浮游植物为主,平均占叶绿素a总量的60.9%,其次是小型浮游植物,超微型浮游植物所占比例最低,与我国近海浮游植物粒级组成基本一致.与历史资料相比,微型浮游植物所占比例有所增加,超微型浮游植物所占比例降低.
译  名：
Chlorophyll-a concentration and phytoplankton size-fractionated composition in Jiaozhou Bay
作  者：
PAN Sheng-jun1,2,SHEN Zhi-liang1(1Key Laboratory of Marine Ecology and Environmental Sciences,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,Shandong,China;2Graduate University of Chinese Academy of Sciences,Beijing 100049,China)
关键词：
Chla;phytoplankton;size-fractionated composition;Jiaozhou Bay
摘  要：
An investigation was made on the chlorophyll-a(Chla)concentration and phytoplankton size-fractionated composition in Jiaozhou Bay and its adjacent waters in February,May,August,and November 2008.The average annual Chla concentrations inside and outside the Bay was 4.90 mg·m-3 and 2.03 mg·m-3,respectively.The Chla concentration presented a decreasing trend from the northeast and near-shore to the central,south,and outside of the Bay,and had an obvious double-peak seasonal variation,being higher in summer and winter.The phytoplankton in the Bay was dominated by nanophytoplankton,accounting for 60.9% of the total Chla concentration,followed by microphytoplankton,and picophytoplankton,which was consistent with the phytoplankton size-fractionated composition in coastal waters of China.Comparing with historical data,the proportion of nanophytoplankton in the Bay had some increase,while that of picophytoplankton decreased to some extent.

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