H
Hiroaki Saito
Researcher at University of Tokyo
Publications - 182
Citations - 7536
Hiroaki Saito is an academic researcher from University of Tokyo. The author has contributed to research in topics: Phytoplankton & Bloom. The author has an hindex of 42, co-authored 171 publications receiving 6940 citations. Previous affiliations of Hiroaki Saito include National Agriculture and Food Research Organization & Japanese Ministry of Agriculture, Forestry and Fisheries.
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Journal ArticleDOI
Synthesis of iron fertilization experiments: From the iron age in the age of enlightenment
Hein J W de Baar,Philip W. Boyd,Kenneth H. Coale,Michael R. Landry,Atsushi Tsuda,Philipp Assmy,Dorothee C. E. Bakker,Yann Bozec,Richard T. Barber,Mark A. Brzezinski,Ken O. Buesseler,Marie Boye,Marie Boye,Peter Croot,Frank Gervais,Maxim Y. Gorbunov,Paul Harrison,William T. Hiscock,Patrick Laan,Christiane Lancelot,Cliff S. Law,Maurice Levasseur,Adrian Marchetti,Frank J. Millero,Jun Nishioka,Yukihiro Nojiri,Tim van Oijen,Ulf Riebesell,Micha J. A. Rijkenberg,Hiroaki Saito,Shingenobu Takeda,Klaas R. Timmermans,Marcel J.W. Veldhuis,Anya M. Waite,Chi Shing Wong +34 more
TL;DR: In this paper, a comparison of eight iron experiments shows that maximum Chl a, the maximum DIC removal, and the overall DIC/Fe efficiency all scale inversely with depth of the wind mixed layer (WML) defining the light environment.
Journal ArticleDOI
A mesoscale iron enrichment in the western subarctic Pacific induces a large centric diatom bloom.
Atsushi Tsuda,Shigenobu Takeda,Hiroaki Saito,Jun Nishioka,Yukihiro Nojiri,Isao Kudo,Hiroshi Kiyosawa,Akihiro Shiomoto,Keiri Imai,Tsuneo Ono,Akifumi Shimamoto,Daisuke Tsumune,Takeshi Yoshimura,Tatsuo Aono,Akira Hinuma,Masatoshi Kinugasa,Koji Suzuki,Yoshiki Sohrin,Yoshifumi Noiri,Heihachiro Tani,Yuji Deguchi,Nobuo Tsurushima,Hiroshi Ogawa,Kimio Fukami,Kenshi Kuma,Toshiro Saino +25 more
TL;DR: The in situ test of the iron limitation hypothesis in the subarctic North Pacific Ocean concludes that the bioavailability of iron regulates the magnitude of the phytoplankton biomass and the key phy Topolankton species that determine the biogeochemical sensitivity to iron supply of high-nitrate, low-chlorophyll waters.
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The decline and fate of an iron-induced subarctic phytoplankton bloom
Philip W. Boyd,Cliff S. Law,Chi Shing Wong,Yukihiro Nojiri,Atsushi Tsuda,Maurice Levasseur,Shigenobu Takeda,Richard B. Rivkin,Paul Harrison,Paul Harrison,Robert F. Strzepek,Jim Gower,R. Mike McKay,Edward R. Abraham,Mike Arychuk,J. Barwell-Clarke,William R. Crawford,David W. Crawford,Michelle S. Hale,Koh Harada,Keith Johnson,Hiroshi Kiyosawa,Isao Kudo,Adrian Marchetti,William L. Miller,Joseph A. Needoba,Jun Nishioka,Hiroshi Ogawa,J.S. Page,Marie Robert,Hiroaki Saito,Akash R. Sastri,Nelson D. Sherry,Tim Soutar,Nes Sutherland,Yosuke Taira,Frank A. Whitney,Shau-King Emmy Wong,Takeshi Yoshimura +38 more
TL;DR: The depletion of silicic acid and the inefficient transfer of iron-increased POC below the permanent thermocline have major implications both for the biogeochemical interpretation of times of greater iron supply in the geological past, and also for proposed geo-engineering schemes to increase oceanic carbon sequestration.
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Iron supply to the western subarctic Pacific: Importance of iron export from the Sea of Okhotsk
Jun Nishioka,Jun Nishioka,Tsuneo Ono,Hiroaki Saito,Takeshi Nakatsuka,Shigenobu Takeda,Takeshi Yoshimura,Koji Suzuki,Kenshi Kuma,Shigeto Nakabayashi,Daisuke Tsumune,Humio Mitsudera,W. Keith Johnson,Atsushi Tsuda +13 more
TL;DR: This article found extremely high concentrations of dissolved and particulate iron in the Okhotsk Sea Intermediate Water and the North Pacific Intermediate Water (NPIW) and showed that water ventilation processes in this region probably control the transport of iron through the intermediate water layer from the continental shelf of the Sea of Ohotsk to wide areas of the western subarctic Pacific (WSP).
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Docosahexaenoic acid suppresses nitric oxide production and inducible nitric oxide synthase expression in interferon-γ plus lipopolysaccharide-stimulated murine macrophages by inhibiting the oxidative stress
TL;DR: It is demonstrated that DHA inhibits NO production in macrophages and this inhibition is, in part, mediated by upregulation of GSH, which is thought to mediate the activity of DHA.