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首页> 外文期刊>Journal of oceanography >The summer distribution of coccolithophores and its relationship to water masses in the East China Sea
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The summer distribution of coccolithophores and its relationship to water masses in the East China Sea

机译：东海球藻体的夏季分布及其与水团的关系。

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Coccolithophores are calcifying phytoplankton belonging to the phylum Haptophyta, and are thought to play an important role in the marine carbon cycle through the production and export of organic carbon and calcite. A quantitative scanning electron microscope study of coccolithophores was conducted to survey the spatial distribution of coccolithophore communities in surface water covering the continental shelf of the East China Sea (ECS) during the summer of 2014. The abundance of haptophytes was also revealed by fluorescence in situ hybridization with an 18S rRNA-specific probe. The abundance of coccolithophores in the surface-water ranged from 3.7 to 82.8 cells mL?1, contributing a mean 7.0?% to haptophyte abundance. Four distinct coccolithophore groups (A, B, C, and D) were categorized based on similarities of the coccolithophore communities among the stations. Group A was located in the north of the ECS in the Yellow Sea Mixed Water area, where coccolithophore abundance was low. Group B was dominated by Gephyrocapsa oceanica and was located in the south of the ECS in the Taiwan Warm Current. Group C represented the inner shelf assemblages, with Emiliania huxleyi as the major dominant species, and was influenced by the Changjiang discharges. Group D represented the Kuroshio assemblages, with communities dominated by E. huxleyi and Umbellosphaera tenuis in the outer shelf region. These results suggest that coccolithophores tend to migrate with the water masses in the ECS during the summer.
机译：球墨珊瑚是钙化浮游植物的钙化浮游植物，被认为在通过有机碳和方解石的生产和出口在海洋碳循环中发挥重要作用。在2014年夏季，对鳞茎球菌科进行了定量扫描电子显微镜研究，以调查覆盖东中国海大陆架（ECS）的地表水中球囊石藻群落的空间分布。还通过原位荧光揭示了丰富的触藻植物与18S rRNA特异性探针杂交。地表水中的球藻营养体的丰度范围为3.7至82.8个细胞mL？1，对触藻类植物的丰度贡献平均为7.0？％。根据站间球石藻群落的相似性，将四个不同的球石藻群体（A，B，C和D）分类。 A组位于黄海混合水区ECS的北部，那里的球石藻富集度较低。 B组以大洋藻为主导，位于台湾暖流ECS的南部。 C组代表内层架组合，以虎耳草为主要优势种，并受到长江排放的影响。 D组代表黑潮族，在外层架区域，以E. huxleyi和Umbellosphaera tenuis为主的社区。这些结果表明，在夏季，球墨镜在水中容易随水团迁移。

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