Study on the distribution of dimethylsulfoxide and its influencing factors in the East China Sea during autumn

Gao Nan; Zhang Honghai; Yang Guipeng

doi:10.3969/j.issn.0253-4193.2014.04.011

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Gao Nan, Zhang Honghai, Yang Guipeng. Study on the distribution of dimethylsulfoxide and its influencing factors in the East China Sea during autumn[J]. Haiyang Xuebao, 2014, 36(4): 110-117. doi: 10.3969/j.issn.0253-4193.2014.04.011

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Gao Nan, Zhang Honghai, Yang Guipeng. Study on the distribution of dimethylsulfoxide and its influencing factors in the East China Sea during autumn[J]. Haiyang Xuebao, 2014, 36(4): 110-117. doi: 10.3969/j.issn.0253-4193.2014.04.011

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Study on the distribution of dimethylsulfoxide and its influencing factors in the East China Sea during autumn

doi: 10.3969/j.issn.0253-4193.2014.04.011

College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China

Received Date: 2013-05-29
Rev Recd Date: 2013-09-13

Abstract

Abstract

The spatial distributions of particulate and dissolved dimethylsulfoxide (DMSOp and DMSOd) and factors influencing them were investigated in the surface water and vertical transect PN of the East China Sea (ECS) in November 2010. The concentrations of DMSOp and DMSOd in the surface water ranged from 2.49 to 85.5 nmol/L and from 2.27 to 86.6 nmol/L, respectively, with average values of (17.2±1.40)nmol/L and (15.3±1.29)nmol/L. The horizontal distribution of DMSOp decreased offshore, with the same pattern as chlorophyll a (Chl a), while higher level of DMSOd appeared in the upwelling region of the southwest ECS. The vertical distribution of DMSOd along transect PN revealed higher concentrations in the surface water, whereas higher values of DMSOp appeared in the coastal bottom water. Significant correlations were observed between DMSOp and particulate dimethylsulfoniopropionate (DMSPp) as well as between DMSOp/Chl a ratio and salinity, suggesting the similar sources and functions between DMSOp and DMSPp. In addition, the positive relationship between DMSOd and dimethylsulfide (DMS) indicated that the oxidation of DMS was an important source of DMSOd in the ECS.
- Dimethylsulfoxide,
- Distribution,
- Influencing factors,
- East China Sea

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References(41)

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