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Enhanced role of eddies in the Arctic marine biological pump

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Title: Enhanced role of eddies in the Arctic marine biological pump
Authors: Watanabe, Eiji Browse this author
Onodera, Jonaotaro Browse this author
Harada, Naomi Browse this author →KAKEN DB
Honda, Makio C. Browse this author →KAKEN DB
Kimoto, Katsunori Browse this author →KAKEN DB
Kikuchi, Takashi Browse this author
Nishino, Shigeto Browse this author
Matsuno, Kohei Browse this author →KAKEN DB
Yamaguchi, Atsushi Browse this author →KAKEN DB
Ishida, Akio Browse this author →KAKEN DB
Kishi, Michio J. Browse this author →KAKEN DB
Issue Date: 27-May-2014
Journal Title: Nature Communications
Volume: 5
Start Page: 3950
Publisher DOI: 10.1038/ncomms4950
Abstract: The future conditions of Arctic sea ice and marine ecosystems are of interest not only to climate scientists, but also to economic and governmental bodies. However, the lack of widespread, year-long biogeochemical observations remains an obstacle to understanding the complicated variability of the Arctic marine biological pump. Here we show an early winter maximum of sinking biogenic flux in the western Arctic Ocean and illustrate the importance of shelf-break eddies to biological pumping from wide shelves to adjacent deep basins using a combination of year-long mooring observations and three-dimensional numerical modelling. The sinking flux trapped in the present study included considerable fresh organic material with soft tissues and was an order of magnitude larger than previous estimates. We predict that further reductions in sea ice will promote the entry of Pacific-origin biological species into the Arctic basin and accelerate biogeochemical cycles connecting the Arctic and subarctic oceans.
Type: article
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 山口 篤

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