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Zhou Limin,Wang Min,Zhang Honghai,Yang Guipeng. 2020. Seasonal and spatial variations of dimethylsulfoxide (DMSO) in the East China Sea and the Yellow Sea. Acta Oceanologica Sinica, 39(2):1-11
Seasonal and spatial variations of dimethylsulfoxide (DMSO) in the East China Sea and the Yellow Sea
东海和黄海二甲基亚砜(DMSO)的季节和空间变化
Received:May 14, 2019  
DOI:10.1007/s13131-020-1549-5
Key words:dimethylsulfoxide (DMSO)  distribution  variation  East China Sea  Yellow Sea
中文关键词:  二甲基亚砜  分布  变化  东海  黄海
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.
Author NameAffiliationE-mail
Zhou Limin Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China  
Wang Min Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China  
Zhang Honghai Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China
Institute of Marine Chemistry, Ocean University of China, Qingdao 266100, China 
 
Yang Guipeng Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China, Qingdao 266100, China
Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
Institute of Marine Chemistry, Ocean University of China, Qingdao 266100, China 
gpyang@mail.ouc.edu.cn 
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Abstract:
      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.
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。
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