High-resolution climate records in shallow marine bivalve shells of the tropical western Pacific ocean

• Project/Area Number: 24740345
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Stratigraphy/Paleontology
• Research Institution: Hokkaido University
• Principal Investigator: MIYAJI TSUZUMI 北海道大学, 理学(系)研究科(研究院), 研究員 (40623062)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2012: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
• Keywords: 気候・環境変動 / 貝殻成長線 / 生物地球化学 / 高時間精度 / 二枚貝類 / 微細成長縞 / 層位・古生物 / 高時間精度復元

Research Abstract

The low-latitute area of the western Pacific assumes an important role in Earth's climate system. Intertidal bivalves record various environmental and ecological changes. In this study, sclerochronological and bio-geochemistry measurements in shell portions of several species of tropical bivalve shells collected from various sites were analyzed. Shell growth and oxygen isotope patterns of these species are controlled by seasurface temperature and salinity. Furthermore, it will be possible to reconstruct daily level events such as typhoon.

Research Products

• [Journal Article] Evaluation of Mn and Fe in coral skeletons (Porites spp.) as proxies for sediment loading and reconstruction of fifty years of land use on Ishigaki Island, Japan (2014)
  • Author(s): Inoue, M., Ishikawa, D., Miyaji, T., Yamazaki, A., Suzuki, A., Yamano, H., Kawahata, H. and Watanabe, T.
  • Journal Title: Coral Reefs Volume: 33 Pages: 363-373
  • Peer Reviewed
• [Journal Article] Assessment of the mechanism of elemental incorporation into bivalve shells (Arctica islandica) based on elemental distribution at the microstructural scale (2014)
  • Author(s): Shirai, K., Schöne, B.R., Miyaji, T., Radarmacher, P., Krause, R.A. Jr., and Tanabe, K.
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 126 Pages: 307-320
  • Peer Reviewed
• [Journal Article] Assessment of the mechanism of elemental incorporation into bivalve shells (Arctica islandica) based on elemental distribution at the microstructural scale (2014)
  • Author(s): Shirai, K., Schöne, B.R., Miyaji, T., Radarmacher, P., Krause Jr., R.A. and Tanabe, K.
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 126 Pages: 307-320
  • DOI: 10.1016/j.gca.2013.10.050
  • Peer Reviewed / Open Access
• [Journal Article] Inoue, M., D. Ishikawa, T. Miyaji, A. Yamazaki, A. Suzuki, H. Yamano, H. Kawahata, T. Watanabe (2014) Evaluation of Mn and Fe in coral skeletons (Porites Spp.) as proxies for sediment loading and reconstruction of 50 yrs of land use on Ishigaki Island, Japan, Coral Reefs, 1-11, doi : 10.1007/s00338-014-l128-3. (2014)
  • Author(s): Mayuri Inoue, Daisaku Ishikawa, Tsyzumi Miyaji, Atsuko Yamazaki, Atsushi Suzuki, Hiroya Yamano, Hodaka Kawahata, Tsuyoshi Watanabe
  • Journal Title: Coral Reefs Volume: 1 Issue: 2 Pages: 1-11
  • DOI: 10.1007/s00338-014-1128-3
  • Peer Reviewed / Open Access
• [Presentation] サンゴ骨格中のBa/Ca比変動に記録される石垣島の土地利用変遷 (2014)
  • Author(s): 宮地鼓, 大森一人, 渡邊剛, 山野博哉
  • Organizer: 日本古生物学会2014年年会
  • Place of Presentation: 九州大学
  • Year and Date: 2014-06-29
• [Presentation] Coral Ba/Ca records of anthropogenic land-use history in Ishigaki Island, Okinawa (2014)
  • Author(s): Miyaji, T.
  • Organizer: southwest Japan International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: Hokkado University, Sapporo, Japan
  • Year and Date: 2014-03-25
• [Presentation] Coral Ba/Ca records of anthropogenic land-use history in Ishigaki Island, Okinawa, southwest Japan (2014)
  • Author(s): Tsuzumi Miyaji
  • Organizer: International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: Hokkaido University, Sapporo
• [Presentation] 成長縞編年学と貝殻酸素同位体比解析に基づく北海道オホーツク海沿岸産エゾタマキガイの殻成長と生息環境との関係 (2012)
  • Author(s): 宮地鼓, 三村俊弘, 棚部一成, Schöne, B.R.
  • Organizer: 日本古生物学会2012年年会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2012-07-01
• [Presentation] 成長縞編年学と貝殻酸素同位体比解析に基づく北海道オホーツク海沿岸産エゾタマキガイの殻成長と生息環境との関係 (2012)
  • Author(s): 宮地鼓，三村俊弘，棚部一成，Schoene, B. R.
  • Organizer: 日本古生物学会2012年年会
  • Place of Presentation: 名古屋大学（名古屋市）
• [Book] 東大古生物学,16章二枚貝成長線 (2012)
  • Author(s): 宮地鼓, 佐々木猛智・伊藤泰弘編
  • Publisher: 東海大学出版会
• [Book] 東大古生物学-化石からみる生命史 (2012)
  • Author(s): 宮地鼓
  • Total Pages: 390
  • Publisher: 東海大学出版会