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Algorithm development for the identification of Phytoplankton Functional Types (PFTs) with optical hyperspectral data in the coastal waters

Research Project

Project/Area Number 16K16182
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Environmental dynamic analysis
Research InstitutionHokkaido University

Principal Investigator

ISADA Tomonori  北海道大学, 北方生物圏フィールド科学センター, 准教授 (80725359)

Research Collaborator TANIUCHI Yukiko  
SUZUKI Koji  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords植物プランクトン / ハイパースペクトル / 沿岸域 / 植物プランクトン機能分類 / リモートセンシング / 光吸収係数 / 海洋科学 / 地球観測 / 環境変動 / アルゴリズム
Outline of Final Research Achievements

We developed the algorithm for identification of Phytoplankton Functional Types (PFTs) with optical hyperspectral data of phytoplankton absorption to better understand marine biogeochemical cycles and to accelerate its implications for ocean color remote sensing applications. We selected four PFTs (diatoms, cyanobacteria, green algae, and dinoflagellates) as target PFTs. Our results indicate that an optical hyperspectral data with a derivative spectroscopy/similarity index (SI) method is a promising approach to identify the dominance of each PFT in the ocean. Additionally, we found that derivative spectra of phytoplankton absorption coefficients could be a useful indicator of bio-optical provinces.

Academic Significance and Societal Importance of the Research Achievements

植物プランクトンの光吸収係数のハイパースペクトルデータを用いることで,植物プランクトン色素濃度から計算される全体の植物プランクトン群集組成の推定精度が向上するだけでなく,衛星を含めたリモートセンシング技術からのPFTs高精度推定が可能となった.本研究によって開発されたモデルは,今後,海洋の生物地球化学的循環の更なる理解,および適切な沿岸管理システムへ向けた水産業分野へ大きく貢献できると考えられる.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (11 results)

All 2019 2018 2017 2016

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Responses of phytoplankton assemblages to iron availability and mixing water masses during the spring bloom in the Oyashio region, NW Pacific2019

    • Author(s)
      Isada, T., A. Hattori‐Saito, H. Saito, Y Kondo, J. Nishioka, K. Kuma, H. Hattori, R.M.L. McKay, K. Suzuki
    • Journal Title

      Limnology and Oceanography

      Volume: 64 (1) Issue: 1 Pages: 197-216

    • DOI

      10.1002/lno.11031

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Community composition and photophysiology of phytoplankton assemblages in coastal Oyashio waters of the western North Pacific during early spring2018

    • Author(s)
      Yoshida Kazuhiro、Endo Hisashi、Lawrenz Evelyn、Isada Tomonori、Hooker Stanford B.、Prasil Ondrej、Suzuki Koji
    • Journal Title

      Estuarine, Coastal and Shelf Science

      Volume: 212 Pages: 80-94

    • DOI

      10.1016/j.ecss.2018.06.018

    • NAID

      120006941679

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Influence of hydrography on the spatiotemporal variability ofphytoplankton assemblages and primary productivity in Funka Bay and the Tsugaru Strait2017

    • Author(s)
      Isada, T., T. Hirawake, S. Nakada, T. Kobayashi, K. Sasaki, Y. Tanaka, S. Watanabe, K. Suzuki, and S.-I. Saitoh
    • Journal Title

      Estuarine Coastal Shelf. Science

      Volume: 188 Pages: 199-217

    • DOI

      10.1016/j.ecss.2017.02.019

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] 湿原河川由来の有色溶存有機物(CDOM)が 厚岸湖・厚岸湾の光環境へ与える影響2019

    • Author(s)
      伊佐田智規,阿部博哉,葛西広海,仲岡雅裕
    • Organizer
      日本海洋学会海洋生物シンポジウム2019
    • Related Report
      2018 Annual Research Report
  • [Presentation] 春季親潮・黒潮・混合域の海洋表面マイクロ層における透明細胞外重合体粒子の蓄積2019

    • Author(s)
      野坂裕一,鈴木光次,伊佐田智規,土屋健司,渡邊裕,南秀樹
    • Organizer
      日本海洋学会海洋生物シンポジウム2019
    • Related Report
      2018 Annual Research Report
  • [Presentation] 海の植物プランクトンと鉄の関係2018

    • Author(s)
      伊佐田智規
    • Organizer
      第2回道東森里海連環シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 植物プランクトン群集組成をトレーサーとした秋の道東沿岸海域の水塊分布2018

    • Author(s)
      谷内由貴子,黒田寛,伊佐田智規,芳村毅,葛西広海
    • Organizer
      2018年度水産海洋学会研究
    • Related Report
      2018 Annual Research Report
  • [Presentation] Responses of phytoplankton photophysiology to iron stress and mixing water masses during the spring bloom in the Oyashio region, NW Pacific2018

    • Author(s)
      Tomonori Isada, Ai Hattori-Saito, Hiroaki Saito, Yoshiko Kondo, Jun Nishioka, Kenshi Kuma, Hiroshi Hattori, R. Michael L. McKay and Koji Suzuki
    • Organizer
      2018 Ocean Science Meeting (AGU, ASLO, TOS)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 親潮域春季ブルームにおける水塊変化に伴う植物プランクトン群集組成および光合成生理特性の変化2018

    • Author(s)
      伊佐田智規・齋藤(服部)愛・齊藤宏明・近藤能子・西岡純・久万健志・服部寛・R. Michael L. McKay・鈴木光次
    • Organizer
      日本海洋学会 海洋生物シンポジウム2018
    • Related Report
      2017 Research-status Report
  • [Presentation] 噴火湾・津軽海峡東部における水塊交換に伴う植物プランクトン群集組成と基礎生産力の時空間変化2017

    • Author(s)
      伊佐田智規・平譯享・中田聡史・小林創・佐々木建一・田中義幸・渡邉修一・鈴木光次・齊藤誠一
    • Organizer
      日本海洋学会生物海洋研究会第1回シンポジウム
    • Place of Presentation
      東京海洋大学品川キャンパス(東京都港区)
    • Year and Date
      2017-03-21
    • Related Report
      2016 Research-status Report
  • [Presentation] 2015年の厚岸沖における海洋環境と植物プランクトン群集組成の季節変化2016

    • Author(s)
      伊佐田智規・平譯享・鈴木光次・西岡純・葛西広海・阿部博哉
    • Organizer
      オホーツク海氷融解水が春季親潮域の植物プランクトンブルームと生物地球化学過程に与える影響に関する研究:研究航海データ検討WS(北海道大学低温科学研究所共同研究シンポジウム)
    • Place of Presentation
      北海道大学低温科学研究所(北海道札幌市)
    • Year and Date
      2016-07-27
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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