2021 年 5 月至 7 月拉尼娜事件后，中国边缘海和西北太平洋海域表层海水中高浓度二甲基亚砜。
High dimethylsulfoniopropionate concentrations in the surface seawater over the marginal seas of China and the Northwest Pacific Ocean during May-July of 2021 following La Niña.
机构信息
Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China; College of Fishery, Tianjin Agricultural University, Tianjin 300392, China.
Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China.
出版信息
Mar Pollut Bull. 2023 Sep;194(Pt A):115335. doi: 10.1016/j.marpolbul.2023.115335. Epub 2023 Jul 26.
The total dimethylsulfoniopropionate (DMSPt) concentrations over the surface seawater of China's marginal seas and the northwest Pacific Ocean (NWPO) in May-July 2021 (during the recessional period of La Niña) were analysed. The results showed that the DMSPt concentrations in the marginal seas of China varied from 4.73 to 775.96 nmol L, with an average value of 111.42 ± 129.30 nmol L (average ± standard deviation). It was 2-12 times higher than those previously measured in the same seas and in the NWPO in this study. Significant positive correlations between DMSPt, chlorophyll-a and surface seawater temperature (SST) were observed in the SYS, the ECS and the NWPO. Moreover, their abnormally high SST was related to La Niña. These results suggested that high phytoplankton abundance was caused by abnormally high SST following La Niña, which further promoted DMSPt concentration increases. However, the increase of DMSPt was also related to other factors such as nutrients.
对 2021 年 5-7 月（拉尼娜衰退期）中国近海和西北太平洋（NWPO）表层海水中的总二甲基巯基丙酸酯（DMSPt）浓度进行了分析。结果表明，中国近海的 DMSPt 浓度范围为 4.73-775.96 nmol/L，平均值为 111.42±129.30 nmol/L（平均值±标准差）。这比本研究中同一海域和 NWPO 之前测量的值高 2-12 倍。在 SYS、ECS 和 NWPO 中，DMSPt 与叶绿素-a 和表层海水温度（SST）之间存在显著的正相关关系。此外，它们异常高的 SST 与拉尼娜现象有关。这些结果表明，拉尼娜现象后异常高的 SST 导致了浮游植物丰度的增加，从而进一步促进了 DMSPt 浓度的增加。然而，DMSPt 的增加也与营养物质等其他因素有关。
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