Deep-sea coral evidence for dissolved mercury evolution in the deep North Pacific Ocean over the last 700 years
文献类型：CNKI期刊论文
| 作者 | Yang QU; Kuidong XU ; Tao LI; Maoyu WANG; Huan ZHONG; Tianyu CHEN
|
| 发表日期 | 2021-09-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | deep-sea coral mercury deep water particulate organic matter anthropogenic perturbation |
| 英文摘要 | The ocean is an important inventory of anthropogenic mercury(Hg),yet the history of anthropogenic Hg accumulation in the ocean remains largely unexplored.Deep-sea corals are an emerging archive of past ocean chemistry,which take in sinking or suspended particulate organic matter as their food sources.Such organic matter would exchange Hg with the local seawater before being consumed by the deepsea corals.As such,the organics preserved in the coral skeleton may record the Hg evolution of the ambient seawater during the time of coral growth.Here,we report the first data on Hg concentrations variability of a deep-sea proteinaceous coral in the oligotrophic North Pacific at the water depth of 1 249 m,in attempt to understand the transfer of anthropogenic Hg into the deep Pacific ocean over the last seven centuries.We find that the Hg concentrations of different coral growth layers have remained relatively constant albeit with considerable short-term variability through time.The overall stable Hg concentration of the last seven centuries recorded in our sample suggests that anthropogenic pollution is not yet a clearly resolvable component in the deep oligotrophic North Pacific waters,in agreement with rece nt estimation from modelling works and observational studies of modern seawater profiles.As there is hardly an unambiguous way to separate anthropogenic Hg from the natural background based on recent seawater profiles,our historical data provide valuable information helping to understand the oceanic cycle of Hg through time. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Natural Science Foundation of China (Nos.41822603,41991325,41930533) ; the Strategic Priority Research Program of Chinese Academy of Sciences (No.XDB40010200) ; the Fundamental Research Funds for the Central Universities (No.0206-14380125) ; the Frontiers Science Center for Critical Earth Material Cycling Fund (No.DLTD2102) |
| 卷 | v.39期:05页:40-51 |
| 语种 | 英文; |
| 分类号 | X55 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187647]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.StateKeyLaboratoryofPollutionControlandResourcesReuse,SchooloftheEnvironment,NanjingUniversity 2.EnvironmentalandLifeSciencesProgram(EnLS),TrentUniversity 3.StateKeyLaboratoryforMineralDepositsResearch,SchoolofEarthSciencesandEngineeringandFrontiersScienceCenterforCriticalEarthMaterialCycling,NanjingUniversity 4.LaboratoryofMarineOrganismTaxonomyandPhylogeny,InstituteofOceanology,CenterforOceanMega-Science,ChineseAcademyofSciences 5.CenterofDeepSeaResearch,InstituteofOceanology,CenterforOceanMega-Science,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Yang QU,Kuidong XU,Tao LI,et al. Deep-sea coral evidence for dissolved mercury evolution in the deep North Pacific Ocean over the last 700 years. 2021. |
入库方式： OAI收割
来源：海洋研究所
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