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Disturbances of plankton and benthic ecosystems in the coastal area of the Japan Sea with the coastal jets

Research Project

Project/Area Number 16K07831
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Aquatic bioproduction science
Research InstitutionFisheries Research and Education Agency

Principal Investigator

Kodama Taketoshi  国立研究開発法人水産研究・教育機構, 日本海区水産研究所, 研究員 (20735899)

Co-Investigator(Kenkyū-buntansha) 和川 拓  国立研究開発法人水産研究・教育機構, 日本海区水産研究所, 任期付研究員 (10601916)
井桁 庸介  国立研究開発法人水産研究・教育機構, 日本海区水産研究所, グループ長 (50444138)
木暮 陽一  国立研究開発法人水産研究・教育機構, 日本海区水産研究所, グループ長 (90371905)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords日本海 / 対馬暖流 / 富山湾 / プランクトン / ベントス / 動物プランクトン / 能登半島 / 海洋物理 / 海洋物理・陸水学 / 海洋科学 / 海洋生態 / 気象学
Outline of Final Research Achievements

We studied on the physical, chemical and biological processes in the coastal area in the Japan Sea along Honshu. We found that 1)coastal branch of Tsushima Warm Current (CBTWC) shifts from the coastal mode to the offshore mode in and around Toyama Bay in summer, 2) the shift is achieved by warm-water eddy generation by the CBTWC and 3) such eddies are generated in almost every year,4) the cold-water zooplankton is dominant in the Toyama Bay in every spring when and where CBTWC does not flow into the Toyama Bay, and 5) the sediments at the seafloor are fine under the warm-water eddy generated area, the eastern part of the Noto Peninsula. Hence, we can say that the CBTWC changes the spatiotemporal distributions of plankton and benthic biota.

Academic Significance and Societal Importance of the Research Achievements

対馬暖流域は日本海側の漁業の主漁場である.我々の研究はその中でも最も生活と密接している,対馬暖流の沿岸分枝に着目し,まず,その流路の変動が生じる要因やその過程で生じる現象を解明した.また,動物プランクトンについても対馬暖流の沿岸分枝によって大きく群集が変化することが示された.さらに,流路遷移の過程で高気圧性渦が生じること,その発生域で粒度の小さい堆積物が多いことが示され,沿岸分枝の挙動が底生生態系まで影響する可能性が示された.我々の成果は論文発表による学術的な貢献だけでなく,流路遷移の予測や,日本海沿岸域の生態系の評価を通じて,社会的な貢献が将来的に可能になると考えられる.

Report

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

Research Products

(24 results)

All 2018 2017 2016

All Journal Article (10 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 9 results,  Open Access: 3 results,  Acknowledgement Compliant: 1 results) Presentation (14 results) (of which Int'l Joint Research: 5 results,  Invited: 2 results)

  • [Journal Article] 日本近海産ヒトデ類(棘皮動物門ヒトデ綱)種名目録2018

    • Author(s)
      木暮 陽一
    • Journal Title

      日本生物地理学会会報

      Volume: 73 Pages: 70-86

    • NAID

      40021766813

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Appendicularians in the southwestern Sea of Japan during the summer: abundance and role as secondary producers2018

    • Author(s)
      Kodama Taketoshi、Iguchi Naoki、Tomita Mika、Morimoto Haruyuki、Ota Tomoko、Ohshimo Seiji
    • Journal Title

      Journal of Plankton Research

      Volume: 40 Pages: 269-283

    • DOI

      10.1093/plankt/fby015

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spatial variations in zooplankton community structure along the Japanese coastline in the Japan Sea: influence of the coastal current2018

    • Author(s)
      Kodama Taketoshi、Wagawa Taku、Iguchi Naoki、Takada Yoshitake、Takahashi Takashi、Fukudome Ken-Ichi、Morimoto Haruyuki、Goto Tsuneo
    • Journal Title

      Ocean Science

      Volume: 14 Pages: 355-369

    • DOI

      10.5194/os-14-355-2018

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Improvement in recruitment of Japanese sardine with delays of the spring phytoplankton bloom in the Sea of Japan2018

    • Author(s)
      Kodama Taketoshi、Wagawa Taku、Ohshimo Seiji、Morimoto Haruyuki、Iguchi Naoki、Fukudome Ken-Ichi、Goto Tsuneo、Takahashi Motomitsu、Yasuda Tohya
    • Journal Title

      Fisheries Oceanography

      Volume: 27 Pages: 289-301

    • DOI

      10.1111/fog.12252

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 高解像度海洋モデルで表現された富山湾周辺海域における近慣性内部波・沿岸捕捉波の発生・伝播過程,2018

    • Author(s)
      久賀 みづき, 井桁 庸介, 広瀬 直毅, 渡邊 達郎
    • Journal Title

      La Mar

      Volume: 56 Pages: 95-111

    • NAID

      130008039314

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 炭素・窒素安定同位体比による日本海南部沿岸域における食物網構造の解析2018

    • Author(s)
      木暮 陽一
    • Journal Title

      日本生物地理学会会報

      Volume: 72 Pages: 11-17

    • NAID

      40021483615

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Presence of high nitrate to phosphate ratio subsurface water in the Tsushima Strait during summer2017

    • Author(s)
      Kodama Taketoshi、Morimoto Akihiko、Takikawa Tetsutaro、Ito Masashi、Igeta Yosuke、Abe Shoko、Fukudome Ken-Ichi、Honda Naoto、Katoh Osamu
    • Journal Title

      Journal of Oceanography

      Volume: 73 Pages: 759-769

    • DOI

      10.1007/s10872-017-0430-4

    • NAID

      40021382522

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Transition of the Tsushima Warm Current Path Observed over Toyama Trough, Japan2017

    • Author(s)
      Igeta Yosuke、Yankovsky Alexander、Fukudome Ken-ichi、Ikeda Satoshi、Okei Noriyuki、Ayukawa Kota、Kaneda Atsushi、Watanabe Tatsuro
    • Journal Title

      Journal of Physical Oceanograpghy

      Volume: 47 Pages: 2721-2739

    • DOI

      10.1175/jpo-d-17-0027.1

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Spatial variations in zooplankton community structure along the Japanese coastline in the Japan Sea: influence of the coastal current2017

    • Author(s)
      Kodama Taketoshi、Wagawa Taku、Iguchi Naoki、Takada Yoshitake、Takahashi Takashi、Fukudome Ken-Ichi、Morimoto Haruyuki、Goto Tsuneo
    • Journal Title

      Ocean Science Discussions

      Volume: on-line Pages: 1-24

    • DOI

      10.5194/os-2017-91

    • Related Report
      2017 Research-status Report
    • Open Access
  • [Journal Article] Long-term decrease in phosphate concentrations in the surface layer of the southern Japan Sea2016

    • Author(s)
      Taketoshi Kodama, Yosuke Igeta, Mizuki Kuga, Shoko Abe
    • Journal Title

      Journal of Geophysical Research: Oceans

      Volume: 121 Pages: 7845-7856

    • DOI

      10.1002/2016jc012168

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 水産海洋研究における栄養塩標準の活用例:日本近海域の栄養塩動態解明への取り組み2018

    • Author(s)
      児玉 武稔
    • Organizer
      海水標準物質開発25周年記念シンポジウム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Propagating and scattering processes of near-inertial internal waves calculated by high-resolution ocean model around Toyama Bay2018

    • Author(s)
      井桁 庸介、久賀 みづき、広瀬 直毅、渡邊 達郎
    • Organizer
      Physics of Estuaries and Coastal Seas Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 富山トラフにおける対馬暖流沿岸分枝の流路遷移現象について2018

    • Author(s)
      井桁 庸介
    • Organizer
      第73回日本海海洋調査技術連絡会総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] OREASTERID SEA STARS FROM JAPAN WITH REFERENCE TO THE TAXONOMIC STATUS OF Bothriaster primigenius D_derlein, 19162018

    • Author(s)
      木暮 陽一、大森昭仁
    • Organizer
      第16回国際棘皮動物学会議
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 若狭湾還流発生前に丹後半島北方で観測された対馬暖流の離接岸2018

    • Author(s)
      井桁 庸介、兼田淳史、伊藤 雅、福留研一、熊木豊、鮎川航太
    • Organizer
      2018年度海洋学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 若狭湾環流形成と丹後半島への対馬暖流接岸との関係2018

    • Author(s)
      井桁 庸介、兼田淳史、伊藤 雅、福留研一、熊木豊、鮎川航太
    • Organizer
      モデリング及びメカニズム解明に関する研究集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 富山トラフにおける対馬暖流流路の季節変動2018

    • Author(s)
      井桁 庸介、久賀 みづき、広瀬 直毅
    • Organizer
      2018年度九州沖縄地区合同シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 台風が対馬海峡へ連行してきた高潮位に起因する山陰沿岸の急潮2018

    • Author(s)
      伊藤 雅、井桁 庸介
    • Organizer
      モデリング及びメカニズム解明に関する研究集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 日本海中層に出現する数十 km スケールの栄養塩濃度の擾乱2018

    • Author(s)
      児玉 武稔
    • Organizer
      2018年度海洋学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Variation in zooplankton community in the coastal area of the Sea of Japan since 19992018

    • Author(s)
      児玉 武稔、高田 宜武、井口 直樹、森本 晴之、後藤 常夫
    • Organizer
      2018 ASLO Summer Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 富山トラフ上での対馬暖流沿岸分枝の流路遷移と、沿岸捕捉波によるその加速2018

    • Author(s)
      井桁 庸介、Alexander Yankovsky、福留 研一、池田 怜、大慶 則之、鮎川 航太、兼田 淳史、渡邊 達郎
    • Organizer
      宗谷暖流を始めとした対馬暖流系の変動メカニズム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 日本海の春季ブルームは対馬暖流系のマイワシにとって重要か?2018

    • Author(s)
      児玉 武稔、和川 拓、大下 誠二、安田 十也
    • Organizer
      東京大学大気海洋研究所 共同利用集会 変化拡大するマイワシ資源
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Current paths of the coastal and offshore branch of Tsushima Warm Current and their interactions over the submarine canyon in the Sea of Japan2017

    • Author(s)
      井桁 庸介,Alexander Yankovsky,和川 拓,伊藤 雅,福留研一
    • Organizer
      2017 Coastal Ocean Dynamics Conference GRC
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Comparison of warm- and cold-waters in the Sea of Japan based on physical, chemical and biological aspects2017

    • Author(s)
      児玉 武稔,和川 拓,久賀 みづき,田村 沙織,伊藤 雅,井桁 庸介,小埜 恒夫,佐藤 拓也,田和 篤史,大下 誠二
    • Organizer
      2018 JpGU-AGU Joint Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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

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