Seasonal variation and biogeochemical cycling of dimethylsulfide (DMS) and dimethylsulfoniopropionate (DMSP) in the Yellow Sea and Bohai Sea
Seasonal variation and biogeochemical cycling of dimethylsulfide (DMS) and dimethylsulfoniopropionate (DMSP) in the Yellow Sea and Bohai Sea
复制标题
黄海和渤海二甲硫醚（DMS）和二甲磺基丙酸酯（DMSP）的季节变化和生物地球化学循环
DOI：
10.1002/2014jc010373
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发表时间：
2014-12
期刊：
影响因子：
--
通讯作者：
Gui-Peng Yang, Yi-Zhu Song, Hong-Hai Zhang, Chengxuan Li
中科院分区：
文献类型：
--
作者：
Gui-Peng Yang, Yi-Zhu Song, Hong-Hai Zhang, Chengxuan Li
测定了2012年11月1日至20日和2013年6月21日至7月11日两次航行期间黄海（YS）和渤海（BS）海域二甲硫醚（DMS）、二甲基磺酰丙酸（DMSP）和叶绿素a （Chl-a）的浓度以及DMSP颗粒（DMSPp）的大小分布。测定了DMS的生物产耗率和溶解DMSP （DMSPd）的降解率。DMS和DMSP浓度呈显著的季节变化，夏季较高，与研究区Chl-a的季节变化吻合较好。DMS和DMSPp浓度均与Chl-a水平呈显著相关，表明浮游植物生物量可能对研究区DMS和DMSP的分布起重要控制作用。粒径分异研究表明，在秋季和夏季，纳米浮游植物（5 ~ 20 μm）对Chl-a和DMSPp的贡献最大。夏季DMS的平均生物产量和消耗速率分别为13.35和9.80 nmol L−1 d−1，远高于秋季。夏季DMSPd的降解速率为7.10 ~ 21.70 nmol L−1 d−1，平均为14.71 nmol L−1 d−1，与DMS的平均生物产率（13.35 nmol L−1 d−1）基本一致。秋季和夏季，YS和BS中DMS的平均海气通量分别为12.06和20.81 μmol m−2 d−1，远高于海洋中报告的值。
The concentrations of dimethylsulfide (DMS), dimethylsulfoniopropionate (DMSP) and chlorophyll a (Chl-a) as well as the size distribution of particulate DMSP (DMSPp) were determined in the Yellow Sea (YS) and Bohai Sea (BS) during two cruises from 1 to 20 November 2012 and from 21 June to 11 July 2013. Besides, the biological production and consumption rates of DMS and the degradation rates of dissolved DMSP (DMSPd) were also measured. The concentrations of DMS and DMSP showed a significant seasonal variation with higher values in summer, which corresponded well with the seasonal change of Chl-a in the study area. Both DMS and DMSPp concentrations were significantly correlated with Chl-a levels, implying that phytoplankton biomass might play an important role in controlling the distributions of DMS and DMSP in the study area. The size-fractionation research showed that nanophytoplankton (5–20 μm) contributed to most of Chl-a and DMSPp in autumn and summer. The average biological production and consumption rates of DMS during summer were 13.35 and 9.80 nmol L−1 d−1, respectively, which were much higher than those during autumn. The degradation rates of DMSPd during summer ranged from 7.10 to 21.70 nmol L−1 d−1, with an average of 14.71 nmol L−1 d−1, which was nearly equal to the average biological production rate (13.35 nmol L−1 d−1) of DMS. The average sea-to-air flux of DMS in the YS and BS were 12.06 and 20.81 μmol m−2 d−1 in autumn and in summer, respectively, which were much higher than the values reported in the ocean.
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影响因子：
2.8
作者：
S. Michaud;M. Levasseur;G. Cantin
通讯作者：
S. Michaud;M. Levasseur;G. Cantin
影响因子：
5.2
作者：
R. Simó;C. Pedrós-Alió
通讯作者：
R. Simó;C. Pedrós-Alió
影响因子：
3.3
作者：
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通讯作者：
Guipeng Yang;Wei-Wen Jing;Z. Kang;Hong‐Hai Zhang;Guisheng Song
DOI：
10.1016/j.dsr2.2010.02.010
发表时间：
2010-06
影响因子：
3
作者：
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通讯作者：
X. Ning;Chuanlan Lin;Jilan Su;Cheng-gang Liu;Q. Hao;F. Le;Q. Tang
影响因子：
3
作者：
Guipeng Yang;M. Levasseur;S. Michaud;M. Scarratt
通讯作者：
Guipeng Yang;M. Levasseur;S. Michaud;M. Scarratt