| 东亚边缘海区浮游植物春华的纬向与年际变化 |
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| 引用本文： | 陈诚,毛志华,韩国奇,朱乾坤,龚芳,王天愚.东亚边缘海区浮游植物春华的纬向与年际变化[J].海洋学报(英文版),2016,35(12):81-88. |
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| 作者姓名： | 陈诚 毛志华 韩国奇 朱乾坤 龚芳 王天愚 |
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| 作者单位： | 国家海洋局第二海洋研究所卫星海洋环境动力学国家重点实验室,国家海洋局第二海洋研究所卫星海洋环境动力学国家重点实验室,加拿大渔业海洋部北大西洋渔业研究中心,国家海洋局第二海洋研究所卫星海洋环境动力学国家重点实验室,国家海洋局第二海洋研究所卫星海洋环境动力学国家重点实验室,国家海洋局第二海洋研究所卫星海洋环境动力学国家重点实验室 |
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| 摘 要： | Combined studies of latitudinal and interannual variations of annual phytoplankton bloom peak in East Asian marginal seas(17°–58°N, including the northern South China Sea(SCS), Kuroshio waters, the Sea of Japan and the Okhotsk Sea) are rarely. Based on satellite-retrieved ten-year(2003–2012) median timing of the annual Chlorophyll a concentration(Chl a) climax, here we report that this annual spring bloom peak generally delays from the SCS in January to the Okhotsk Sea in June at a rate of(21.20±2.86) km/d(decadal median±SD). Spring bloom is dominant feature of the phytoplankton annual cycle over these regions, except for the SCS which features winter bloom. The fluctuation of the annual peak timing is mainly within ±48 d departured from the decadal median peak date, therefore this period(the decadal median peak date ±48 d) is defined as annual spring bloom period. As sea surface temperature rises, earlier spring bloom peak timing but decreasing averaged Chl a biomass in the spring bloom period due to insufficient light is evident in the Okhotsk Sea from 2003 to 2012. For the rest of three study domains, there are no significant interannual variance trend of the peak timing and the averaged Chl a biomass. Furthermore this change of spring phytoplankton bloom timing and magnitude in the Okhotsk Sea challenges previous prediction that ocean warming would enhance algal productivity at high latitudes.
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| 关 键 词： | 纬向变化与年际变化 春华峰期 浮游植物物候 东亚边缘海 气候变化 |
| 收稿时间： | 2015/11/16 0:00:00 |
| 修稿时间： | 5/3/2016 12:00:00 AM |
Latitudinal and interannual variations of the spring phytoplankton bloom peak in the East Asian marginal seas |
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| CHEN Cheng,MAO Zhihu,HAN Guoqi,ZHU Qiankun,GONG Fang and WANG Tianyu.Latitudinal and interannual variations of the spring phytoplankton bloom peak in the East Asian marginal seas[J].Acta Oceanologica Sinica,2016,35(12):81-88. |
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| Authors: | CHEN Cheng MAO Zhihu HAN Guoqi ZHU Qiankun GONG Fang and WANG Tianyu |
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| Institution: | 1.State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China2.Biological and Physical Oceanography Section, Fisheries and Oceans Canada, Northwest Atlantic Fisheries Centre, Newfoundland and Labrador, Canada |
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| Abstract: | Combined studies of latitudinal and interannual variations of annual phytoplankton bloom peak in East Asian marginal seas (17°-58°N, including the northern South China Sea (SCS), Kuroshio waters, the Sea of Japan and the Okhotsk Sea) are rarely. Based on satellite-retrieved ten-year (2003-2012) median timing of the annual Chlorophyll a concentration (Chl a) climax, here we report that this annual spring bloom peak generally delays from the SCS in January to the Okhotsk Sea in June at a rate of (21.20±2.86) km/d (decadal median±SD). Spring bloom is dominant feature of the phytoplankton annual cycle over these regions, except for the SCS which features winter bloom. The fluctuation of the annual peak timing is mainly within ±48 d departured from the decadal median peak date, therefore this period (the decadal median peak date ±48 d) is defined as annual spring bloom period. As sea surface temperature rises, earlier spring bloom peak timing but decreasing averaged Chl a biomass in the spring bloom period due to insufficient light is evident in the Okhotsk Sea from 2003 to 2012. For the rest of three study domains, there are no significant interannual variance trend of the peak timing and the averaged Chl a biomass. Furthermore this change of spring phytoplankton bloom timing and magnitude in the Okhotsk Sea challenges previous prediction that ocean warming would enhance algal productivity at high latitudes. |
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| Keywords: | latitudinal and interannual variation spring bloom peak phytoplankton phenology East Asian marginal seas climate change |
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