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Atlantic-origin water extension into the Pacific Arctic induced an anomalous biogeochemical event

Author

Listed:
  • Shigeto Nishino

    (Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

  • Jinyoung Jung

    (Korea Polar Research Institute)

  • Kyoung-Ho Cho

    (Korea Polar Research Institute)

  • William J. Williams

    (Fisheries and Oceans Canada)

  • Amane Fujiwara

    (Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

  • Akihiko Murata

    (Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

  • Motoyo Itoh

    (Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

  • Eiji Watanabe

    (Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

  • Michio Aoyama

    (Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
    University of Tsukuba)

  • Michiyo Yamamoto-Kawai

    (Tokyo University of Marine Science and Technology)

  • Takashi Kikuchi

    (Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

  • Eun Jin Yang

    (Korea Polar Research Institute)

  • Sung-Ho Kang

    (Korea Polar Research Institute)

Abstract

The Arctic Ocean is facing dramatic environmental and ecosystem changes. In this context, an international multiship survey project was undertaken in 2020 to obtain current baseline data. During the survey, unusually low dissolved oxygen and acidified water were found in a high-seas fishable area of the western (Pacific-side) Arctic Ocean. Herein, we show that the Beaufort Gyre shrinks to the east of an ocean ridge and forms a front between the water within the gyre and the water from the eastern (Atlantic-side) Arctic. That phenomenon triggers a frontal northward flow along the ocean ridge. This flow likely transports the low oxygen and acidified water toward the high-seas fishable area; similar biogeochemical properties had previously been observed only on the shelf-slope north of the East Siberian Sea.

Suggested Citation

  • Shigeto Nishino & Jinyoung Jung & Kyoung-Ho Cho & William J. Williams & Amane Fujiwara & Akihiko Murata & Motoyo Itoh & Eiji Watanabe & Michio Aoyama & Michiyo Yamamoto-Kawai & Takashi Kikuchi & Eun J, 2023. "Atlantic-origin water extension into the Pacific Arctic induced an anomalous biogeochemical event," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-41960-w
    DOI: 10.1038/s41467-023-41960-w
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    References listed on IDEAS

    as
    1. Curtis Deutsch & Justin L. Penn & Brad Seibel, 2020. "Metabolic trait diversity shapes marine biogeography," Nature, Nature, vol. 585(7826), pages 557-562, September.
    2. Eiji Watanabe & Jonaotaro Onodera & Naomi Harada & Makio C. Honda & Katsunori Kimoto & Takashi Kikuchi & Shigeto Nishino & Kohei Matsuno & Atsushi Yamaguchi & Akio Ishida & Michio J. Kishi, 2014. "Enhanced role of eddies in the Arctic marine biological pump," Nature Communications, Nature, vol. 5(1), pages 1-12, September.
    3. L. Oziel & A. Baudena & M. Ardyna & P. Massicotte & A. Randelhoff & J.-B. Sallée & R. B. Ingvaldsen & E. Devred & M. Babin, 2020. "Faster Atlantic currents drive poleward expansion of temperate phytoplankton in the Arctic Ocean," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
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