Composition of algal pigments in surface freshen layer after ice melt in the central Arctic

查看全文 作　　者：ZHUANG [1]Yanpei;JIN [1,2]Haiyan;GU [1]Fan;ZHANG [1]Yang;BAI [1]Youcheng;JI [1]Zhongqiang;LU [1]Yong;CHEN [1,2]lianfang

机构地区：[1]Laboratory of Marine Ecosystem and Biogeochemistry,Second Institute of Oceanography,State Oceanic Administration,Hangzhou 310012,China;[2]State Key Laboratory of Satellite Ocean Environment Dynamics,Second Institute of Oceanography,State Oceanic Administration,Hangzhou 310012,China

出　　处：《Acta Oceanologica Sinica》索引2017年第36卷第8期,共9页

基　　金：The National Natural Science Foundation of China under contract Nos 41276198 and 41506222;Chinese Polar Environment Comprehensive Investigation&Assessment Programs under contract Nos Chinare-03-04 and Chinare-04-03;Scientific Research Fund of Second Institute of Oceanography,SOA under contract No.JG1323 摘　　要：Seasonal meltwater input creates a thin freshen layer in surface seawater under ice,which largely shifts the algae assemblages.Our recent observation of photosynthetic pigments in the high Arctic showed that ice bottom and 5m of seawater under ice contained relatively high concentration of fucoxanthin,while chlorophyll b and lutein were the major diagnostic pigments in ice-water interface and 0 m of seawater under ice.Additionally,a notable change of dominant phytoplankton occurred in the top 5 m of seawater under ice,from chlorophytes-dominated at surface to diatoms-dominated at 5 m depth,which might attribute to the sharp salinity gradient(salinity from12.5 to 28.1) in the surface seawater under ice.Our results imply that phytoplankton community in surface layer under ice would become more chlorophytes in the future warming Arctic Ocean. 关键词：藻类组合色素成分表面层融冰北极浮游植物群落表层海水中央

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Composition of algal pigments in surface freshen layer after ice melt in the central Arctic

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