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Examining the effects of ocean acidification on foraminiferal calcification using microCT analysis

Research Project

Project/Area Number 19K04053
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 17050:Biogeosciences-related
Research InstitutionTohoku University

Principal Investigator

KUROYANAGI Azumi  東北大学, 学術資源研究公開センター, 准教授 (20536510)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords海洋酸性化 / 大型底生有孔虫 / 飼育実験 / 海洋石灰化生物 / マイクロX線CT / 有孔虫 / 石灰化生物 / pH / 浮遊性有孔虫 / 石灰質(炭酸塩)殻プランクトン
Outline of Research at the Start

近年の急激な二酸化炭素濃度上昇に起因する海洋酸性化に伴い,石灰質(炭酸塩)の殻・骨格を形成する海洋生物への多大な影響が懸念されている.しかし,海洋表層における主要な石灰化生物・プランクトンである浮遊性有孔虫が,海洋酸性化をどう反映するのかについては定性的な議論にとどまっている.本研究では,マイクロX線CT装置を使用して,有孔虫試料(現生飼育,現生トラップ,コア堆積物)の炭酸塩殻を精密測定し,環境因子(水温,炭酸イオン等)と炭酸塩殻の密度・体積との定量的関係を明らかにすることを目的とする.

Outline of Final Research Achievements

Rapid increases in anthropogenic atmospheric CO2 partial pressure have led to a decrease in the pH of seawater. Foraminifera are one of the major carbonate producers in the ocean; however, whether calcification reduction by ocean acidification affects either foraminiferal shell volume or density, or both, has yet to be investigated.
Our results suggest that changes in seawater pH would affect not only the quantity (i.e., shell volume) but also the quality (i.e., shell density) of foraminiferal calcification. Our findings also suggest that, under the IPCC RCP8.5 scenario (pCO2 = 1250 ppm and global mean temperature +3.7°C in 2100), ocean acidification and warming will have a significant impact on reef foraminiferal carbonate production by the end of this century, even in the tropics.

Academic Significance and Societal Importance of the Research Achievements

近年の急激な二酸化炭素濃度上昇に起因する海洋酸性化に伴い,石灰質(炭酸塩)の殻・骨格を形成する海洋生物への多大な影響が懸念されている.本研究の結果,低緯度域において重要な海洋石灰化生物である,大型底生有孔虫の炭酸塩殻において,将来の海洋酸性化による海水のpH低下は,量的(体積)減少のみならず質的(殻密度)な減少にも影響をおよぼすことが示唆された.

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (35 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (11 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 10 results,  Open Access: 7 results) Presentation (21 results) (of which Int'l Joint Research: 12 results,  Invited: 7 results) Book (1 results)

  • [Int'l Joint Research] FRB-CESAB/CEREGE(フランス)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] FRB-CESAB/CEREGE(フランス)

    • Related Report
      2022 Research-status Report
  • [Journal Article] The FORCIS database: A global census of planktonic Foraminifera from ocean waters2023

    • Author(s)
      Chaabane Sonia、de Garidel-Thoron Thibault、Giraud Xavier、Schiebel Ralf、Beaugrand Gregory、Brummer Geert-Jan、Casajus Nicolas、Greco Mattia、Grigoratou Maria、Howa Helene、Jonkers Lukas、Kucera Michal、Kuroyanagi Azumi、and other 34
    • Journal Title

      Scientific Data

      Volume: 10 Issue: 1 Pages: 1-16

    • DOI

      10.1038/s41597-023-02264-2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Constant shell density of hyaline large benthic foraminifers under thermal stress2023

    • Author(s)
      Kinoshita, S., Kuroyanagi, A., Kawahata, H., Fujita, K., Ishimura, T., Suzuki, A., Kano, H., Kubota, Y. and Nishi, H.
    • Journal Title

      Marine Micropaleontology

      Volume: 181 Pages: 102232-102232

    • DOI

      10.1016/j.marmicro.2023.102232

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 微化石から読み解く海洋環境――過去・現在,そして未来2022

    • Author(s)
      黒柳あずみ
    • Journal Title

      岩波科学

      Volume: 10月号 Pages: 910-914

    • Related Report
      2022 Research-status Report
  • [Journal Article] Response of Planktic Foraminiferal Shells to Ocean Acidification and Global Warming Assessed Using Micro-X-Ray Computed Tomography2022

    • Author(s)
      Kinoshita Shunichi、Wang Quan、Kuroyanagi Azumi、Murayama Masafumi、Ujiie Yurika、Kawahata Hodaka
    • Journal Title

      Paleontological Research

      Volume: 26 Issue: 4 Pages: 390-404

    • DOI

      10.2517/pr200043

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Foraminiferal Response to Climate Stressors Project: Tracking the Community Response of Planktonic Foraminifera to Historical Climate Change2022

    • Author(s)
      de Garidel-Thoron Thibault、Chaabane Sonia、Giraud Xavier、Meilland Julie、Jonkers Lukas、Kucera Michal、Brummer Geert-Jan A.、Grigoratou Maria、Monteiro Fanny M.、Greco Mattia、Mortyn P. Graham、Kuroyanagi Azumi、Howa Helene、Beaugrand Gregory、Schiebel Ralf
    • Journal Title

      Frontiers in Marine Science

      Volume: 9 Pages: 1-6

    • DOI

      10.3389/fmars.2022.827962

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Seasonal variation of fluxes of planktic foraminiferal tests collected by a time-series sediment trap in the central Bay of Bengal during three different years2022

    • Author(s)
      Maeda Ayumi、Kuroyanagi Azumi、Iguchi Akira、Gaye Birgit、Rixen Tim、Nishi Hiroshi、Kawahata Hodaka
    • Journal Title

      Deep Sea Research Part I: Oceanographic Research Papers

      Volume: 183 Pages: 103718-103718

    • DOI

      10.1016/j.dsr.2022.103718

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Decrease in volume and density of foraminiferal shells with progressing ocean acidification2021

    • Author(s)
      Kuroyanagi Azumi、Irie Takahiro、Kinoshita Shunichi、Kawahata Hodaka、Suzuki Atsushi、Nishi Hiroshi、Sasaki Osamu、Takashima Reishi、Fujita Kazuhiko
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 1-7

    • DOI

      10.1038/s41598-021-99427-1

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Temperature effects on the shell growth of a larger benthic foraminifer (Sorites orbiculus): Results from culture experiments and micro X-ray computed tomography2021

    • Author(s)
      Kinoshita, S., Kuroyanagi, A., Kawahata, H., Fujita, K., Ishimura, T., Suzuki, A., Sasaki, S., Nishi, H.
    • Journal Title

      Marine Micropaleontology

      Volume: 163 Pages: 101960-101960

    • DOI

      10.1016/j.marmicro.2021.101960

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] What drove the evolutionary trend of planktic foraminifers during the Cretaceous: Oceanic Anoxic Events (OAEs) directly affected it?2020

    • Author(s)
      Kuroyanagi Azumi、Kawahata Hodaka、Ozaki Kazumi、Suzuki Atsushi、Nishi Hiroshi、Takashima Reishi
    • Journal Title

      Marine Micropaleontology

      Volume: 161 Pages: 101924-101924

    • DOI

      10.1016/j.marmicro.2020.101924

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Changes in upper ocean hydrography and productivity across the Middle Eocene Climatic Optimum: Local insights and global implications from the Northwest Atlantic2020

    • Author(s)
      Arimoto Jun、Nishi Hiroshi、Kuroyanagi Azumi、Takashima Reishi、Matsui Hiroki、Ikehara Minoru
    • Journal Title

      Global and Planetary Change

      Volume: 193 Pages: 103258-103258

    • DOI

      10.1016/j.gloplacha.2020.103258

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Perspective on the response of marine calcifiers to global warming and ocean acidification?Behavior of corals and foraminifera in a high CO2 world “hot house”2019

    • Author(s)
      Kawahata Hodaka、Fujita Kazuhiko、Iguchi Akira、Inoue Mayuri、Iwasaki Shinya、Kuroyanagi Azumi、Maeda Ayumi、Manaka Takuya、Moriya Kazuyoshi、Takagi Haruka、Toyofuku Takashi、Yoshimura Toshihiro、Suzuki Atsushi
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 6 Issue: 1 Pages: 1-37

    • DOI

      10.1186/s40645-018-0239-9

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 高pCO2環境下での全アルカリ度変化による大型底生有孔虫の 石灰化量の変動2024

    • Author(s)
      木下峻一,橋本優里,黒柳あずみ,鈴木淳
    • Organizer
      日本古生物学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Three-dimensional parameters (volume and density) of planktonic foraminiferal fossils in the core as potential paleoenvironmental proxies2023

    • Author(s)
      木下 峻一、王 権、黒柳 あずみ、村山 雅史、氏家 由利香、川幡 穂高
    • Organizer
      Japan Geoscience Union Meeting 2023(国際学会)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seasonal variation in planktic foraminifera from sediment trap samples in the North Pacific Subtropical Gyre2023

    • Author(s)
      黒柳 あずみ、鈴木 淳、山岡 香子、橋本 優里、藤井 武史、近藤 俊祐、湊谷 純平
    • Organizer
      Japan Geoscience Union Meeting 2023(国際学会)
    • Related Report
      2023 Annual Research Report
  • [Presentation] 白亜紀海水の炭酸系と海洋の石灰化生物への影響2023

    • Author(s)
      鈴木 淳, 木下 峻一, 井口 亮, 飯島 真理子, 大野 良和, 安元 剛, 保高 徹生, 酒井 一彦, 黒柳 あずみ, 川幡 穂高
    • Organizer
      日本地球化学会 第70回年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 海洋アルカリ化による大型底生有孔虫の石灰化量の変化2023

    • Author(s)
      木下 峻一、鈴木 淳、黒柳 あずみ
    • Organizer
      地球環境史学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 北西太平洋亜熱帯域のセジメントトラップ試料から得られた浮遊性有孔虫の季節変化2023

    • Author(s)
      橋本 優里,黒柳 あずみ ,鈴木 淳,山岡 香子,藤井 武史,近藤 俊祐 ,鴨志田 紘子
    • Organizer
      地球環境史学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 有孔虫から読み解く過去の環境変遷ー 古環境研究が拓く未来2022

    • Author(s)
      黒柳あずみ
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Effects on shell quality of large benthic foraminifers under different temperature conditions ★Invited Papers2022

    • Author(s)
      木下 峻一・黒柳 あずみ・西 弘嗣・藤田 和彦・鈴木 淳・川幡 穂高
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Seasonal changes of planktic foraminifera in the subtropical Northwest Pacific based on sediment trap samples2022

    • Author(s)
      黒柳 あずみ・鈴木 淳・山岡 香子・橋本 優里・藤井 武史・近藤 俊祐・湊谷 純平
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 白亜紀の海洋無酸素事変(OAE)が浮遊性有孔虫の進化傾向に及ぼす影響の検証2022

    • Author(s)
      黒柳あずみ・川幡穂高・尾崎和海・鈴木 淳・西 弘嗣・高嶋礼詩
    • Organizer
      日本古生物学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 過去・現在・未来の海洋環境と有孔虫2022

    • Author(s)
      黒柳あずみ
    • Organizer
      2022年度海洋若手研究集会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 地質学が担う将来の地球環境:海洋酸性化と有孔虫2022

    • Author(s)
      黒柳あずみ
    • Organizer
      日本地質学会第129年学術大会シンポジウム
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Effects of environmental changes on planktic foraminiferal shells assessed by the investigation of micro-X-ray CT2021

    • Author(s)
      木下 峻一、王 権、黒柳 あずみ、村山 雅史、氏家 由利香、川幡 穂高
    • Organizer
      日本地球惑星科学連合2021年大会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 海洋リソスフェアと地球表層環境 ~海洋プレート生成史が地球表層環境に与えた影響~2021

    • Author(s)
      黒田 潤一郎, 後藤 孝介, 石川 晃, 黒柳 あずみ
    • Organizer
      日本地球惑星科学連合2021年大会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Calcification depths of planktic foraminifers constrained using geochemical signatures in the sediment trap samples collected from the Bay of Bengal2021

    • Author(s)
      前田 歩、黒柳 あずみ、吉村 寿紘、Gaye Birgit、Rixen Tim、鈴木 淳、川幡 穂高
    • Organizer
      日本地球惑星科学連合2021年大会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Sub-surface water mass exchanges around the eastern equatorial Indian Ocean during the last 50,000 years2021

    • Author(s)
      高柳 栄子、若公 良太、木本 ゆうな、若木 重行、黒柳 あずみ、石輪 健樹、横山 祐典、若木 仁美、石川 剛志、井龍 康文
    • Organizer
      日本地球惑星科学連合2021年大会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] マイクロX線CT計測による浮遊性有孔虫コア記録を用いた海洋環境が石灰化生物に及ぼす影響の検証2021

    • Author(s)
      木下峻一・王 権・黒柳あずみ・村山雅史・氏家由利香・川幡穂高
    • Organizer
      日本古生物学会 第170回例会
    • Related Report
      2020 Research-status Report
  • [Presentation] Effect of euxinic conditions on planktic foraminifers: results from laboratory culture experiments and implications for oceanic anoxic events2020

    • Author(s)
      黒柳 あずみ、豊福 高志、長井 裕季子、木元 克典、西 弘嗣、高嶋 礼詩、川幡 穂高
    • Organizer
      JpGU-AGU joint Meeting 2020 Virtual
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effects of larger benthic foraminifers from global warming analysed by Micro-X-ray CT2020

    • Author(s)
      木下 峻一、黒柳 あずみ、西 弘嗣、佐々木 理、藤田 和彦、鈴木 淳、川幡 穂高
    • Organizer
      JpGU-AGU joint Meeting 2020 Virtual
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Seasonal variation in assemblage of planktic foraminifera from the sediment trap samples in the Bay of Bengal2020

    • Author(s)
      前田 歩、黒柳 あずみ、西 弘嗣、Gaye Birgit、川幡 穂高
    • Organizer
      JpGU-AGU joint Meeting 2020 Virtual
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effects on larger benthic foraminiferal shell density under global warming2019

    • Author(s)
      Shunichi Kinoshita, Azumi Kuroyanagi, Hiroshi Nishi, Osamu Sasaki, Kazuhiko Fujita, Atsushi Suzuki, Hodaka Kawahata
    • Organizer
      Japan Geoscience Union Meeting 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] 古生物学の百科事典2023

    • Author(s)
      日本古生物学会、西 弘嗣
    • Total Pages
      790
    • Publisher
      丸善出版
    • ISBN
      9784621307588
    • Related Report
      2022 Research-status Report

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Published: 2019-04-18   Modified: 2025-01-30  

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