ZHUANG Yanpei, JIN Haiyan, GU Fan, ZHANG Yang, BAI Youcheng, JI Zhongqiang, LU Yong, CHEN Jianfang. Composition of algal pigments in surface freshen layer after ice melt in the central Arctic[J]. Acta Oceanologica Sinica, 2017, 36(8): 122-130. doi: 10.1007/s13131-017-1024-0
Citation: ZHUANG Yanpei, JIN Haiyan, GU Fan, ZHANG Yang, BAI Youcheng, JI Zhongqiang, LU Yong, CHEN Jianfang. Composition of algal pigments in surface freshen layer after ice melt in the central Arctic[J]. Acta Oceanologica Sinica, 2017, 36(8): 122-130. doi: 10.1007/s13131-017-1024-0

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

doi: 10.1007/s13131-017-1024-0
  • Received Date: 2016-03-29
  • 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 5 m 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 from 12.5 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.
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