中国海洋大学学报（自然科学版）2024，Vol.54Issue(1)：86-94,9.DOI:10.16441/j.cnki.hdxb.20220395
扇贝养殖季烟台近海CH4和DMS的时空分布及影响因素
Tempo-Spatial Distributions and Influencing Factors of CH4 and DMS During Scallop Farming in Yantai Offshore
摘要
Abstract
Methane(CH4)and dimethylsulfide(DMS)are important volatile biogenic active gases,which play important roles in regulating climate change.In order to explore the impact of raft culture of scallop on CH4 and DMS,field investigations were conducted in Yantai offshore during May,June,July,August,September and November in 2019,respectively.The results showed that scallop filter feeding could indirectly input organic matter into sediment,and resulting in an 25.64％higher average CH4 concentration in the bottom layer of scallop farming area compared with that in non-culture area.Meanwhile,scallop filter feeding could also repackage the phytoplanktonic DMSP into fecal DMSP,and then degrade DMSP into DMS by attracting attached bacteria.Compared with the non-farming area,the DMS concentration in the surface layer of the farming area increased by 24.13％.In addition,the CH4 concentrations in surface seawater were supersaturated,and DMSP may be an important potential source of CH4 in the surface seawater.Yantai offshore is an important source of atmospheric CH4 and DMS.During the whole scallop breeding cycle,the sea-air fluxes of CH4 and in the investigated sea area was about 9.69X106 and 3.33X107 g,respectively.关键词
CH4/DMS/DMSP/扇贝养殖Key words
CH4/DMS/DMSP/shellfish farming分类
海洋科学引用本文复制引用
张升辉,孙婧,赵淼,胡晓珂..扇贝养殖季烟台近海CH4和DMS的时空分布及影响因素[J].中国海洋大学学报（自然科学版）,2024,54(1):86-94,9.基金项目
国家自然科学基金项目(42006047) （42006047）
国家自然基金委重大研究计划项目(92051119) （92051119）
泰山学者攀登计划项目(tspd20210317)资助 Supported by the National Natural Science Foundation of China(42006047) （tspd20210317）
the Major Research Program of National Natural Science Foundation of China(92051119) （92051119）
the Taishan Scholars Climbing Program(tspd20210317) （tspd20210317）
