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Effects of coastal shellfish farming on dimethylsulfide production

文献类型: 外文期刊

作者: Zhang, Shenghui 1 ; Sun, Jing 2 ; Zhao, Miao 3 ; Liu, Yongliang 1 ; Hu, Qingjing 5 ; Zhao, Jianmin 1 ; Hu, Xiaoke 1 ;

作者机构: 1.Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China

2.Shandong Marine Resource & Environm Res Inst, Key Lab Marine Ecol Restorat, Yantai 264006, Shandong, Peoples R China

3.Jiangsu Ocean Univ, Jiangsu Key Lab Marine Bioresources & Environm, Lianyungang, Peoples R China

4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Muping Coastal Environm Res Stn, Yantai 264003, Shandong, Peoples R China

5.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Sustainable Dev Marine Fisheries, Minist Agr & Rural Affairs, Qingdao, Peoples R China

6.Shandong Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China

关键词: Dimethylsulfide; Dimethylsulfoniopropionate; Shellfish farming; Flux

期刊名称:ESTUARINE COASTAL AND SHELF SCIENCE ( 影响因子:2.8; 五年影响因子:3.0 )

ISSN: 0272-7714

年卷期: 2023 年 292 卷

页码:

收录情况: SCI

摘要: Dimethylsulfide (DMS) plays an important role in the sulfur biogeochemical cycle and cloud formation on Earth. In the past few decades, coastal shellfish breeding facilities have developed rapidly in shallow coastal regions. However, the effects of coastal shellfish farming on DMS production remain controversial at present. The Yantai offshore is an important shellfish farming region in northern China and the effect of shellfish farming on DMS production was explored combining field investigation and laboratory cultivation in this study. The results showed that coastal shellfish farming can promote the conversion of DMSP to DMS, especially in the shellfish rapid growth period and harvest period. However, different from the zooplankton "sloppy feeding", the shellfish "filter-feeding" first repackages the phytoplanktonic DMSP into fecal DMSP, and then degrades DMSPp into DMS by attracting attached bacteria. Throughout the entire shellfish farming period, average DMS flux in shellfish region was 1.37 mu mol m(-2) d(-1) higher than that in non-shellfish region. Based on the investigation results Yantai coastal shellfish farming region, it can be estimated that the increment of DMS caused by Chinese coastal shellfish farming can reach 2.96 x 10(6) mol per year.

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