DOI: 10.1016/j.ecss.2020.106628
论文题名: Assessment of Ba/Ca in Arctica islandica shells as a proxy for phytoplankton dynamics in the Northwestern Atlantic Ocean
作者: Doré J. ; Chaillou G. ; Poitevin P. ; Lazure P. ; Poirier A. ; Chauvaud L. ; Archambault P. ; Thébault J.
刊名: Estuarine, Coastal and Shelf Science
ISSN: 2727714
出版年: 2020
卷: 237 语种: 英语
英文关键词: A. islandica
; Ba/Ca
; Chlorophyll a
; Cross-dating
; Master chronology
; Northwestern Atlantic
Scopus关键词: assessment method
; beryllium
; bivalve
; calcium
; chlorophyll a
; chronology
; global climate
; instrumentation
; phytoplankton
; reconstruction
; shell
; spatiotemporal analysis
; Atlantic Ocean
; Atlantic Ocean (Northwest)
; Mascarene Islands
; Reunion
; Saint Pierre
; Arctica islandica
; Bivalvia
英文摘要: Despite its major role as a global climate regulator, little is known about the recent evolution of the North Atlantic Ocean, especially prior to the fifties, principally because of the lack of long-term instrumental data. Moreover, the North Atlantic Ocean is undergoing rapid changes at the physical scale leading to modifications at the biological scale increasing interest to monitor the environment. The phytoplankton is the base of the ocean life and its perturbation can lead to further changes in the food chain. Recording its dynamics implies to observe both its spatial and temporal variations. This study brings forward the use of the Ba/Ca ratio from shells of the long-living bivalve Arctica islandica collected in the Northwestern Atlantic Ocean near Saint-Pierre and Miquelon (SPM) as a recorder of the past and present phytoplankton dynamics. A high inter and intra-reproducibility and synchrony between Ba/Cashell profiles were demonstrated allowing the reconstruction of a 124 years annually-resolved Ba/Cashell master chronology (from 1893 to 2016). This master chronology was positively correlated to the surface chlorophyll a measured by satellite sensor at regional (around SPM) and global scales (Northwestern Atlantic). © 2020 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158170
Appears in Collections: 气候变化与战略
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作者单位: Univ Brest, CNRS, IRD, Ifremer, LEMAR, Plouzané, France; Canada Research Chair in Geochemistry of Coastal Hydrogeosystems, Québec-Océan, ISMER, UQAR, Rimouski, Canada; Ifremer, Univ Brest, CNRS, IRD, LEMAR, Plouzané, France; GEOTOP and Département des Sciences de la Terre et de l'atmosphère, UQAM, Montréal, Canada; Québec Océan, Département de Biologie, Université Laval, Québec, QC, Canada
Recommended Citation:
Doré J.,Chaillou G.,Poitevin P.,et al. Assessment of Ba/Ca in Arctica islandica shells as a proxy for phytoplankton dynamics in the Northwestern Atlantic Ocean[J]. Estuarine, Coastal and Shelf Science,2020-01-01,237