东海和黄海二甲基亚砜（DMSO）的季节和空间变化

周立敏; 王敏; 张洪海; 杨桂朋

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Zhou Limin,Wang Min,Zhang Honghai,Yang Guipeng.Seasonal and spatial variations of dimethylsulfoxide (DMSO) in the East China Sea and the Yellow Sea[J].Acta Oceanologica Sinica,2020,39(2):1-11

东海和黄海二甲基亚砜（DMSO）的季节和空间变化

Seasonal and spatial variations of dimethylsulfoxide (DMSO) in the East China Sea and the Yellow Sea

投稿时间：2019-05-14

DOI：10.1007/s13131-020-1549-5

中文关键词: 二甲基亚砜分布变化东海黄海

英文关键词:dimethylsulfoxide (DMSO) distribution variation East China Sea Yellow Sea

基金项目:The National Natural Science Foundation of China under contract Nos 41576073, 41306069 and 41320104008; the National Key Research and Development Program of China under contract No. 2016YFA0601301.

作者	单位	E-mail
周立敏	教育部海洋化学理论与技术重点实验室/中国海洋大学海洋高等研究院
王敏	教育部海洋化学理论与技术重点实验室/中国海洋大学海洋高等研究院
张洪海	教育部海洋化学理论与技术重点实验室/中国海洋大学海洋高等研究院中国海洋大学海洋化学研究所
杨桂朋	教育部海洋化学理论与技术重点实验室/中国海洋大学海洋高等研究院青岛海洋科学与技术国家实验室海洋生态与环境科学功能实验室中国海洋大学海洋化学研究所	gpyang@mail.ouc.edu.cn

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中文摘要:

于2011年3-4月、10-11月对东海和黄海溶解态和颗粒物二甲基亚砜（DMSOd，DMSOp）的季节和空间分布进行了研究。结果表明：春季表层海水中DMSOd和DMSOp的浓度分别为20.6（5.13~73.8）和8.90（3.75~29.6）nmol/L，秋季分别13.4（4.17~42.7）和8.18（3.44~22.6）nmol/L。DMSOd和DMSOp浓度季节变化相似，春季较高，主要原因是春季浮游植物生物量较高。此外，DMSOp/叶绿素a比值也呈现明显的季节变化，秋季较高（35.7mmol/g），春季较低（23.4mmol/g），与浮游植物群落中DMSO生产者比例在春秋两季季节变化相对应。此外，表层海水中DMSOd和DMSOp浓度具有明显的日变化，最大值出现在下午。

英文摘要:

Seasonal and spatial distributions of dissolved and particulate dimethylsulfoxide (DMSOd, DMSOp) were measured in the East China Sea and the Yellow Sea during March-April 2011 and October-November 2011. The concentrations of DMSOd and DMSOp in the surface water were 20.6 (5.13-73.8) and 8.90 (3.75-29.6) nmol/L in spring, and 13.4 (4.17-42.7) and 8.18 (3.44-22.6) nmol/L in autumn, respectively. Both DMSOd and DMSOp concentrations revealed similar seasonal changes with higher values occurring in spring, mainly because of the higher phytoplankton biomass observed in spring. Moreover, the ratios of DMSOp/chlorophyll a also exhibited an apparent seasonal change with higher values in autumn (35.7 mmol/g) and lower values in spring (23.4 mmol/g), thereby corresponding with the seasonal variation in the proportion of DMSO producers in the phytoplankton community between spring and autumn. In addition, DMSOd and DMSOp concentrations in the surface seawater revealed obvious diurnal variations with the maxima appearing in the afternoon.

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