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首页> 外文期刊>Journal of oceanography >Sixteen-year phytoplankton biomass trends in the northwestern Pacific Ocean observed by the SeaWiFS and MODIS ocean color sensors
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Sixteen-year phytoplankton biomass trends in the northwestern Pacific Ocean observed by the SeaWiFS and MODIS ocean color sensors

机译：通过SeaWiFS和MODIS海洋颜色传感器观测到的西北太平洋16年浮游植物生物量趋势

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摘要

Using multisensor/platform biophysical data collected from 1997 to 2013, we investigated trends of the concentrations of phytoplankton biomass (Chl) in the northwestern Pacific Ocean (NWPO) and the probable responsible factors. The trend of rising sea surface temperature (SST) was the main factor maintaining phytoplankton positive net growth and resulted in a trend of increasing Chl at high latitudes in all seasons. At latitudes of 36-46A degrees N, east of 160A degrees E, the trend of rising SST was accompanied by a trend of declining Chl, markedly in spring and fall, which could be ascribed to strengthened stratification. The trends of environmental variables in the Oyashio area have modified conditions in a way detrimental to phytoplankton growth, the result being a trend of declining Chl from spring to fall. Chl south of roughly 36A degrees N exhibited different trends in different seasons because of the different trends of vertical stratification. Whereas the observed 16-year Chl trends were not primarily influenced by interannual climate variability, to some degree they were likely modified by decadal variability associated with a weakened Aleutian Low pressure. This work prompts further comprehensive studies to investigate the probable ecological consequences of the observed Chl trend for high-trophic-level marine organisms in the NWPO.
机译：利用1997年至2013年收集的多传感器/平台生物物理数据，我们调查了西北太平洋（NWPO）中浮游植物生物量（Chl）的浓度趋势以及可能的影响因素。海面温度（SST）上升的趋势是维持浮游植物正净生长的主要因素，并导致所有季节高纬度Chl都有增加的趋势。在北纬36-46A度，东经160A度以东，海温上升的趋势伴随着Chl下降的趋势，在春季和秋季尤为明显，这可以归因于分层的加强。 Oyashio地区环境变量的趋势已经改变了条件，从而不利于浮游植物的生长，其结果是Chl从春季到秋季都有下降的趋势。由于垂直分层趋势的不同，大约36A度以南的Chl在不同季节显示出不同的趋势。尽管观察到的16年Chl趋势主要不受年际气候变化的影响，但是在一定程度上，它们可能被与阿留申低压减弱有关的年代际变化所改变。这项工作促使开展进一步的综合研究，以调查观察到的Chl趋势对NWPO中高营养水平海洋生物可能造成的生态后果。

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  • 来源
    《Journal of oceanography》 |2016年第3期|479-489|共11页
  • 作者

    Siswanto Eko; Honda Makio C.; Matsumoto Kazuhiko; Sasai Yoshikazu; Fujiki Tetsuichi; Sasaoka Kosei; Saino Toshiro;

  • 作者单位

    Japan Agcy Marine Earth Sci & Technol, Dept Environm Geochem Cycle Res, Kanazawa Ku, 3173-25 Showa Machi, Yokohama, Kanagawa 2360001, Japan|Japan Agcy Marine Earth Sci & Technol, Res & Dev Ctr Global Change, Kanazawa Ku, 3173-25 Showa Machi, Yokohama, Kanagawa 2360001, Japan;

    Japan Agcy Marine Earth Sci & Technol, Dept Environm Geochem Cycle Res, 2-15 Natsushima Cho, Yokosuka, Kanagawa 2370061, Japan;

    Japan Agcy Marine Earth Sci & Technol, Dept Environm Geochem Cycle Res, 2-15 Natsushima Cho, Yokosuka, Kanagawa 2370061, Japan;

    Japan Agcy Marine Earth Sci & Technol, Res & Dev Ctr Global Change, Kanazawa Ku, 3173-25 Showa Machi, Yokohama, Kanagawa 2360001, Japan;

    Japan Agcy Marine Earth Sci & Technol, Res & Dev Ctr Global Change, 2-15 Natsushima Cho, Yokosuka, Kanagawa 2370061, Japan;

    Japan Agcy Marine Earth Sci & Technol, Res & Dev Ctr Global Change, 2-15 Natsushima Cho, Yokosuka, Kanagawa 2370061, Japan;

    Japan Agcy Marine Earth Sci & Technol, 2-15 Natsushima Cho, Yokosuka, Kanagawa 2370061, Japan;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Remote sensing; Ocean color; Chlorophyll-a; Phytoplankton growth; Lightutrient limitation; Climate change;

    机译：遥感;海洋颜色;叶绿素a;浮游植物生长;光/营养限制;气候变化;

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