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High-precision observations of biological responses of Thecosomata for the ocean acidification

Research Project

Project/Area Number 16H04961
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Aquatic bioproduction science
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

KIMOTO katsunori  国立研究開発法人海洋研究開発機構, Yokosuka, 主任技術研究員 (40359162)

Co-Investigator(Kenkyū-buntansha) 佐々木 洋  石巻専修大学, 理工学部, 教授 (10183378)
清水 啓介  国立研究開発法人海洋研究開発機構, 海洋生命理工学研究開発センター, ポストドクトラル研究員 (00757776)
Research Collaborator SHIMIZU Keisuke  国立研究開発法人海洋研究開発機構, 海洋生命理工学研究開発センター, ポストドクトラル研究員 (00757776)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2016: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
Keywords海洋酸性化 / 有殻翼足類 / ミジンウキマイマイ / マイクロフォーカスX線CT / 殻密度 / 遺伝的多様性 / 空間分布 / 地球温暖化 / 較正基準試料の制作 / 殻密度計測 / 群集動態 / 3D形態情報 / 北太平洋 / 高精度pH観測 / 北西部北太平洋 / マイクロX線CT / 骨格密度計測
Outline of Final Research Achievements

Thecosomatous pteropod is one of the gastropods which has free-floating habitat in the open ocean. Their aragonite shell is rapidly dissolved under the ocean acidification (OA) condition. In this study, we performed the integrated observation for thecosomatous pteropod Limacina helicina to understand their distribution, ecology, phylogeny, and biological impact to OA. According to our study, their habitat is surface (shallower than 100m water depth)and they are widely distributing in the western North Pacific. The POI gene of L. helicina presented two Haprotypes between North Pacific and North Atlantic, and their gene were clearly separated. Bulk shell density (BSD) of L. helicina measured by Micro focus X-ray CT (MXCT) reached at 0.5g/cm3 and 1.7g/cm3 during winter and summer, respectively. It was realized that their BSD changed through the year, and it decreased under low pH (low omega) conditions. It indicates that large biological impact will be occurred under the OA conditions.

Academic Significance and Societal Importance of the Research Achievements

人類活動に伴う大気中の二酸化炭素の増大は、海洋の炭酸系、すなわち炭素を中心とした化学平衡に深刻な影響をもたらし、海洋酸性化を引き起こすと同時に海洋生態系にも影響を及ぼす。持続可能な社会を確立するために、海洋生態系サービスの維持と継続観測は必須である。本研究では、有用魚種の餌でもある本種の殻密度が海洋酸性化によって最大37パーセントも著しく低下することを観測で初めて示した。北太平洋では本種が有殻翼足類の最優先種であることに加え、遺伝的分化も北大西洋と比べて乏しいため、環境変化の影響をより受けやすいことを強くサポートする結果となった。一刻も早くより一層の国際的な海洋酸性化対策が必要であるといえる。

Report

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

    (26 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (17 results) (of which Int'l Joint Research: 12 results,  Invited: 3 results) Book (1 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] SC Coastal Water Research Project(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] KIOST(韓国)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Insights into the evolution of shells and love darts of land snails revealed from their matrix proteins.2019

    • Author(s)
      Shimizu, K., Kimura, K., Isowa, Y., Oshima, K., Ishikawa, M., Kagi, H., Kito, K., Hattori, M., Chiba, S., Endo, K.
    • Journal Title

      Genome Biol. Evol.

      Volume: 11 Issue: 2 Pages: 380-397

    • DOI

      10.1093/gbe/evy242

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 海洋酸性化と生物影響2018

    • Author(s)
      木元克典
    • Journal Title

      日本機械学会誌

      Volume: 121 Pages: 18-21

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Phylogeography of the pelagic snail Limacina helicina (Gastropoda: Thecosomata) in the subarctic western North Pacific2018

    • Author(s)
      Shimizu Keisuke、Kimoto Katsunori、Noshita Koji、Wakita Masahide、Fujiki Tetsuichi、Sasaki Takenori
    • Journal Title

      Journal of Molluscan Studies

      Volume: 84 Issue: 1 Pages: 30-37

    • DOI

      10.1093/mollus/eyx040

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Shell morphology/density variations of thecosomatous pteropod Limacina helicina recovered from off Mombetsu, Sea of Okhotsk: A result from 2017 to 20182019

    • Author(s)
      Katsunori Kimoto, Keisuke Shimizu, Erina Shima, Hiroshi Sasaki, Hiromi Kasai, Seiji Katakura
    • Organizer
      34th International Symposium on the Okhotsk Sea & Polar Oceans
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ocean acidification driven biological vulnerability in the high latitudes: comparison between the Gulf of Alaska, Bering Sea and Beaufort Sea2019

    • Author(s)
      Bednarsek N., Kimoto, K., Feely, R., Naish, K., Carter, B., Hauser, L., Hermann, A., Hauri, C., Jimenez, I., Niemi, A., Stabeno, P.
    • Organizer
      34th International Symposium on the Okhotsk Sea & Polar Oceans
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Technical development of Micro X-ray Computed Tomography (MXCT) and research activity on ocean acidification in the western Arctic Ocean2019

    • Author(s)
      Katsunori Kimoto, Jonaotaro Onodera, Koji Sugie, Naomi Harada
    • Organizer
      ArCS Workshop for Promoting Arctic Collaboration between IARC/UAF and Japan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 微化石試料の自動X線形態計測2019

    • Author(s)
      木元克典、佐々木理、岩下智洋
    • Organizer
      MRC微化石研究集会2019
    • Related Report
      2018 Annual Research Report
  • [Presentation] Shell density measurements of thecosomatous pteropods in the Arctic Ocean2018

    • Author(s)
      Shima Erina, Kimoto Katsunori, Sasaki Hiroshi
    • Organizer
      The 33rd International Symposium on the Okhotsk Sea and Polar Oceans
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 北極海における有殻翼足類の殻密度の計測2018

    • Author(s)
      島瑛里奈、木元克典、佐々木洋
    • Organizer
      MRC微化石研究集会
    • Related Report
      2017 Annual Research Report
  • [Presentation] JAMSTECのマイクロX線CT装置の紹介と微化石のスキャンノウハウ2017

    • Author(s)
      木元克典
    • Organizer
      日本古生物学会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Recent activities on ocean acidification study in JAMSTEC2017

    • Author(s)
      Katsunori Kimoto
    • Organizer
      Meeting of Korea Institute of Science and Technology
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] A new approach to the partition of the biogenic silica production using Microfocus X-ray CT: radiolarian silica flux in the Chukchi Borderland2017

    • Author(s)
      Ikenoue, T., K. Kimoto, J. Onodera, K. R. Bjorklund, E. Watanabe, M. C. Honda, N. Harada, M. Itoh, S. Nishino, and T. Kikuchi
    • Organizer
      Interrad XV
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 西部北太平洋時系列観測点K2におけるpHの高頻度連続観測2017

    • Author(s)
      中野善之、 藤木徹一、脇田昌英、木元克典
    • Organizer
      日本海洋学会2017年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] High resolution morphometry of shelled pteropods by the X-ray microtomography: a new perspective of ocean acidification study2017

    • Author(s)
      Kimoto Katsunori, Shimizu Keisuke, Shima Erina, Wakita Masahide, Sasaki Hiroshi, Sasaki Osamu
    • Organizer
      The 33rd International Symposium on the Okhotsk Sea and Polar Oceans, 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Diurnal and seasonal variations of pH for a year in the western subarctic North Pacific observed by using a hybrid pH sensor2017

    • Author(s)
      Yoshiyuki Nakano, Tetsuichi Fujiki, Katsunori Kimoto, Tetsuya Miwa
    • Organizer
      EGU General Assembly 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Vulnerability of Pteropod Shell In The Arctic Ocean: A Result of Culture Experiment Under Natural Seawater.2016

    • Author(s)
      Katsunori Kimoto, Jonaotaro Onodera, Naomi Harada, Kohei Matsuno, Takahito Ikenoue, Osamu Sasaki.
    • Organizer
      International Conference on High CO2 World
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Shell density of Planktic Foraminifera in the North Pacific: Seasonal acidification and its ecological impacts2016

    • Author(s)
      Katsunori Kimoto, Osamu Sasaki, Masahide Wakita Makio Honda, Naomi Harada. Shell density of Planktic Foraminifera in the North Pacific
    • Organizer
      GOA-ON Conference
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Marine calcareous plankton as the recorder of past and present ocean acidification: How do they respond?2016

    • Author(s)
      Katsunori Kimoto
    • Organizer
      3rd JAMBIO International Symposium
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 北極海における有殻翼足類の脆弱性と頑健性:天然海水を用いた船上飼育実験の結果2016

    • Author(s)
      木元克典・小野寺丈尚太郎・西野茂人・原田尚美・池上隆仁・松野孝平・佐々木理
    • Organizer
      日本プランクトン学会
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 海洋酸性化の影響評価のための浮遊性有孔虫の個体別密度測定法2016

    • Author(s)
      木元克典・中村由里子・脇田昌英・原田尚美・佐々木理
    • Organizer
      日本海洋学会年会
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Book] 深海――極限の世界 生命と地球の謎に迫る2019

    • Author(s)
      藤倉 克則、木村 純一、海洋研究開発機構
    • Total Pages
      296
    • Publisher
      講談社
    • ISBN
      4065160421
    • Related Report
      2018 Annual Research Report
  • [Remarks] 無料ツールOden

    • URL

      https://white-rabbit.jp/product/oden/

    • Related Report
      2018 Annual Research Report
  • [Remarks] 3D標本展示用ソフトウェア Odenについて

    • URL

      http://www.jamstec.go.jp/res/ress/kimopy/oden/

    • Related Report
      2017 Annual Research Report
  • [Patent(Industrial Property Rights)] 密度測定方法および較正基準試料並びにその作製方法2018

    • Inventor(s)
      木元克典、菊池一夫、岩下智洋、佐々木理
    • Industrial Property Rights Holder
      JAMSTEC,コムスキャンテクノ,ホワイトラビット
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2018-128758
    • Filing Date
      2018
    • Related Report
      2018 Annual Research Report

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Published: 2016-04-21   Modified: 2022-07-19  

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