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

作　　者：Limin Zhou Min Wang Honghai Zhang Guipeng Yang Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education/Institute for Advanced Ocean 

机构地区：[1]Study,Ocean University of China,Qingdao 266100,China [2]Laboratory for Marine Ecology and Environmental Science,Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China [3]Institute of Marine Chemistry,Ocean University of China,Qingdao 266100,China

出　　处：《Acta Oceanologica Sinica》2020年第2期1-11,共11页海洋学报（英文版）

基　　金：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

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.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.

关 键 词：dimethylsulfoxide(DMSO) distribution VARIATION East China Sea Yellow Sea 

分 类 号：Q948[生物学—植物学]