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Nanomolar phosphate supply and its recycling drive net community production in the subtropical North Pacific

Author

Listed:
  • Fuminori Hashihama

    (Tokyo University of Marine Science and Technology
    University of Tasmania)

  • Ichiro Yasuda

    (The University of Tokyo)

  • Aki Kumabe

    (Tokyo University of Marine Science and Technology)

  • Mitsuhide Sato

    (The University of Tokyo
    Nagasaki University)

  • Hiroshi Sasaoka

    (Tokyo University of Marine Science and Technology)

  • Yosuke Iida

    (Japan Meteorological Agency)

  • Takuhei Shiozaki

    (The University of Tokyo)

  • Hiroaki Saito

    (The University of Tokyo)

  • Jota Kanda

    (Tokyo University of Marine Science and Technology)

  • Ken Furuya

    (The University of Tokyo
    Soka University)

  • Philip W. Boyd

    (University of Tasmania)

  • Masao Ishii

    (Japan Meteorological Agency)

Abstract

Seasonal drawdown of dissolved inorganic carbon (DIC) in the subtropical upper ocean makes a significant contribution to net community production (NCP) globally. Although NCP requires macronutrient supply, surface macronutrients are chronically depleted, and their supply has been unable to balance the NCP demand. Here, we report nanomolar increases in surface nitrate plus nitrite (N+N, ~20 nM) and phosphate (PO4, ~15 nM) from summer to winter in the western subtropical North Pacific. Molar ratios of upward fluxes of DIC:N+N:PO4 to the euphotic zone (

Suggested Citation

  • Fuminori Hashihama & Ichiro Yasuda & Aki Kumabe & Mitsuhide Sato & Hiroshi Sasaoka & Yosuke Iida & Takuhei Shiozaki & Hiroaki Saito & Jota Kanda & Ken Furuya & Philip W. Boyd & Masao Ishii, 2021. "Nanomolar phosphate supply and its recycling drive net community production in the subtropical North Pacific," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23837-y
    DOI: 10.1038/s41467-021-23837-y
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