Reconstructing Kuroshio transport during last 100 years using geochemical proxies on coral skeletons

• Project/Area Number: 24310001
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: Hokkaido University
• Principal Investigator: WATANABE Tsuyoshi 北海道大学, 理学(系)研究科(研究院), 講師 (80396283)
• Co-Investigator(Renkei-kenkyūsha): IKEDA Masataka 北海道大学, 高等教育機能開発総合センター, 技術専門職員 (00621517) ; MIYAJI Tuzumi 北海道大学, 大学院理学研究院, 博士研究員 (40623062)
• Research Collaborator: YAMAZAKI Atuko 東京大学, 大気海洋研究所, 特別研究員 (40723820)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000); Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2012: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
• Keywords: サンゴ骨格 / 栄養塩 / 黒潮

Outline of Final Research Achievements

We have reconstructed the change in Kuroshio transport during last 100 years using the coral skeletons from four different areas in north Pacific of Kuroshio regions (Luetao island, Taiwan, Koshiki island, Kagoshima, Tatsukushi, Kouchi, Kushimoto, Wakayama). We applied the oxygen isotopes, strontium/calcium ratio, nitrogen isotopes on coral skeletons to estimate the past changes of salinity, temperature, and nutrient with weekly to monthly temporal resolution and discussed the relationship during last 100 among the Kuroshio behavior, global warming, and regional climate systems, including ENSO and PDO.

Research Products

• [Journal Article] The coral δ15N record of terrestrial nitrate loading varies with river catchment land use (2015)
  • Author(s): Yamazaki, A., T. Watanabe, U. Tsunogai, H. Hasegawa, and H. Yamano
  • Journal Title: Coral Reefs Volume: 34 Issue: 1 Pages: 353-362
  • DOI: 10.1007/s00338-014-1235-1
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Middle Holocene daily light cycle reconstructed from the strontium/calcium ratios of a fossil giant clam shell. (2015)
  • Author(s): M. Hori, Y. Sano, A. Ishida, N. Takahata, K. Shirai, T. Watanabe
  • Journal Title: Scientific Reports Volume: 5 Issue: 1 Pages: 1-5
  • DOI: 10.1038/srep08734
  • NAID: 120005602517
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [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
• [Journal Article] Influence of Land Development on Holocene Porites Coral Calcification at Nagura Bay, Ishigaki Island, Japan. (2014)
  • Author(s): Sowa K, Watanabe T, Kan H, Yamano H
  • Journal Title: PLoS ONE Volume: 9(2) Issue: 2 Pages: e88790-e88790
  • DOI: 10.1371/journal.pone.0088790
  • NAID: 120005425370
  • Peer Reviewed / Open Access
• [Journal Article] A skeletal Sr/Ca record preserved in Favia speciosa and implications for coral Sr/Ca thermometry in mid-latitude regions (2013)
  • Author(s): Seo, I., Lee, Y.I., Watanabe, T., Yamano, H., Shimamura, M. Yoo, C.M. Hyeong, K.
  • Journal Title: Geochemistry Geophysics Geosystems Volume: 14(8) Issue: 8 Pages: 2873-2885
  • DOI: 10.1002/ggge.20195
  • Peer Reviewed
• [Journal Article] Nitrogen isotopes in intra-crystal coralline aragonites (2013)
  • Author(s): Atsuko Yamazaki, Tsuyoshi Watanabe, Naoto Takahata, Yuji Sane, Urumu Tsunogai
  • Journal Title: Chemical Geology Volume: 351 Pages: 276-280
  • DOI: 10.1016/j.chemgeo.2013.05.024
  • Peer Reviewed
• [Presentation] Coral evidence for winter PDO variability triggered by the East Asian summer monsoon during the last 100 years,Asia Oceania Geosciences Society (2014)
  • Author(s): Watanabe, T., Kawamura, T., Yamazaki A., Murayama, M., Yamano,H.
  • Organizer: Asia Oceania Geosciences Society, 11th Annual Meeting
  • Place of Presentation: ロイトン札幌（北海道, 札幌市）
  • Year and Date: 2014-07-28 – 2014-08-01
• [Presentation] Variation of the Kuroshio transport over the 20th century (2014)
  • Author(s): Yamazaki A., Watanabe, T.,Tsunogai, U., Iwase,F., Yamano,H.
  • Organizer: Asia Oceania Geosciences Society, 11th Annual Meeting
  • Place of Presentation: ロイトン札幌（北海道, 札幌市）
  • Year and Date: 2014-07-28 – 2014-08-01
• [Presentation] Multidecadal climate reconstruction using sclerochronological and geochemical approaches on freshwater peal mussels in Hokkaido, Japan (Best Poster Award) (2014)
  • Author(s): Suzuki, M., Watanabe, T., Yamazaki A., Miyaji,T., Ohmori K., ShiraI, K.
  • Organizer: Asia Oceania Geosciences Society, 11th Annual Meeting
  • Place of Presentation: ロイトン札幌（北海道, 札幌市）
  • Year and Date: 2014-07-28 – 2014-08-01
• [Presentation] Strong typhoon in 2005 recorded in the shell growth lines and geochemical signals of Tridacna maxima from Okinotori island,Japan (2014)
  • Author(s): Komagoe,T., Watanabe, T., Miyaji,T., Shirai, K., Yamazaki A.
  • Organizer: Asia Oceania Geosciences Society, 11th Annual Meeting
  • Place of Presentation: ロイトン札幌（北海道, 札幌市）
  • Year and Date: 2014-07-28 – 2014-08-01
• [Presentation] Seasonal to decadal climate signals in skeletal growth and trace elements of the Pacific sclerosponges (2014)
  • Author(s): Ohmori K., Watanabe, T.
  • Organizer: Asia Oceania Geosciences Society, 11th Annual Meeting,
  • Place of Presentation: ロイトン札幌（北海道, 札幌市）
  • Year and Date: 2014-07-28 – 2014-08-01
• [Presentation] High-resolution isotopic records in Oman corals: Indian Monsoon climate reconstruction (2014)
  • Author(s): Watanabe, T., Watanabe, T., Yamazaki A., Claereboudt,M.Garbe-Schonberg, D., Pfeiffer,M.
  • Organizer: Asia Oceania Geosciences Society, 11th Annual Meeting
  • Place of Presentation: ロイトン札幌（北海道, 札幌市）
  • Year and Date: 2014-07-28 – 2014-08-01
• [Presentation] Reconstruction of anthropogenic 236U input to the Japan Sea (2014)
  • Author(s): Sakaguchi, A., Nomura,T., Steier,P., Watanabe, T., Sasaki, K., Takahashi, Y., Yamano,H.
  • Organizer: Asia Oceania Geosciences Society, 11th Annual Meeting,
  • Place of Presentation: ロイトン札幌（北海道, 札幌市）
  • Year and Date: 2014-07-28 – 2014-08-01
• [Presentation] Multiple approaches for understanding earth environmental changes using biogenetic carbonates (2014)
  • Author(s): Watanabe, T.
  • Organizer: International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: 北海道大学（北海道,札幌市）
  • Year and Date: 2014-05-25 – 2014-05-27
• [Presentation] Perplexing effects of Porites coral calcification on annual interval trace elements and boron isotope in northern habitable limits of Japan (2014)
  • Author(s): Sowa,K., Watanabe, T., Tanaka, K., Zinke,J., McCulloch, M.
  • Organizer: International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: 北海道大学（北海道,札幌市）
  • Year and Date: 2014-05-25 – 2014-05-27
• [Presentation] Seasonal to decadal climate signals in skeletal growth and trace elements of the Pacific sclerosponges (2014)
  • Author(s): Ohmori K., Watanabe, T.
  • Organizer: International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: 北海道大学（北海道,札幌市）
  • Year and Date: 2014-05-25 – 2014-05-27
• [Presentation] Strong typhoon in 2005 recorded in the shell growth lines and geochemical signals of Tridacna maxima from Okinotori island (2014)
  • Author(s): Komagoe,T., Watanabe, T., Miyaji,T., Shirai,K., Yamazaki A
  • Organizer: International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: 北海道大学（北海道,札幌市）
  • Year and Date: 2014-05-25 – 2014-05-27
• [Presentation] High-resolution isotopic records in Oman corals: Indian Monsoon climate reconstruction (2014)
  • Author(s): Watanabe,T., Watanabe, T., Yamazaki A.,Claereboudt, M., Pfeiffer,M.
  • Organizer: International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: 北海道大学（北海道,札幌市）
  • Year and Date: 2014-05-25 – 2014-05-27
• [Presentation] Multidecadal climatate reconstruction using sclerochronological and geochemical approaches on freshwater peal mussels in Hokkaido, Japan, (2014)
  • Author(s): Suzuki,M., Watanabe, T.,Yamazaki A., Miyaji,T., Ohmori K., Shirai,K.
  • Organizer: International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: 北海道大学（北海道,札幌市）
  • Year and Date: 2014-05-25 – 2014-05-27
• [Presentation] New evidence for halite co-precipitation during coral calcification (2014)
  • Author(s): Motai, S., Nagai,T., Kawano, J., Watanabe, T.
  • Organizer: Japan Geoscience Union Meeting 2014
  • Place of Presentation: パシフィコ横浜（神奈川県,横浜市）
  • Year and Date: 2014-05-01
• [Presentation] Variation of North Atlantic nitrogen fixation in Caribbean coral skeletons (2014)
  • Author(s): Yamazaki A., Hetzinger, S., Reumont, J., V., Manfrino, C., Tsunogai, U., Watanabe, T
  • Organizer: Japan Geoscience Union Meeting 2014
  • Place of Presentation: パシフィコ横浜（神奈川県,横浜市）
  • Year and Date: 2014-05-01
• [Presentation] Corals at marine volcano of Satsuma iwo-jima: Implication for a new proxy of hydrothermal events and biological adaptati (2014)
  • Author(s): Watanabe, T., Kamimura, K., Yamazaki A., Ohmori K., Le Guern F., Kiyokawa S.
  • Organizer: Japan Geoscience Union Meeting 2014
  • Place of Presentation: パシフィコ横浜（神奈川県,横浜市）
  • Year and Date: 2014-05-01
• [Presentation] Multiple approaches for understanding earth environmental changes using biogenetic carbonates. (2014)
  • Author(s): Tsuyoshi Watanabe
  • Organizer: International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: 北海道大学（札幌市）
• [Presentation] Perplexing effects of Porites coral calcification on annual interval trace elements and boron isotope in northern habitable limits of Japan (2014)
  • Author(s): Kohki Sowa, Tsuyoshi Watanabe, Kentaro Tanaka, Jens Zinke, Malcolm McCulloch
  • Organizer: International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: 北海道大学（札幌市）
• [Presentation] Seasonal to decadal climate signals in skeletal growth and trace elements of the Pacific sclerosponges, International Joint workshop on coral reef environmental earth sciences (2014)
  • Author(s): Kazuto Ohmori, Tsuyoshi Watanabe
  • Organizer: International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: 北海道大学（札幌市）
• [Presentation] Strong typhoon in 2005 recorded in the shell growth lines and geochemical signals of Tridacna maxima from Okinotori island, Japan (2014)
  • Author(s): Taro Komagoe ,Tsuyoshi Watanabe ,Tsuzumi Miyaji,Kotaro Shirai ,Atsuko Yamazaki
  • Organizer: International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: 北海道大学（札幌市）
• [Presentation] High-resolution isotopic records in Oman corals: Indian Monsoon climate reconstruction (2014)
  • Author(s): Takaaki Watanabe, Tsuyoshi Watanabe, Atsuko Yamazaki, Michel R Claereboudt, Miriam Pfeiffer
  • Organizer: International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: 北海道大学（札幌市）
• [Presentation] Multidecadal climatate reconstruction using sclerochronological and geochemical approaches on freshwater peal mussels in Hokkaido, Japan (2014)
  • Author(s): Mayumi Suzuki, Tsuyoshi Watanabe, Atsuko Yamazaki, Tsuzumi Miyaji, Kazuto Omori, Kotaro Shirai
  • Organizer: International Joint workshop on coral reef environmental earth sciences
  • Place of Presentation: 北海道大学（札幌市）
• [Presentation] Corals at volcanic island of Satsuma iwo-jima: Implication for a new proxy of hydrothermal events and biological adaptation (2013)
  • Author(s): Watanabe, T.,Kamimura, K., Yamazaki, A.,K. Omori, Le Guern, F., Kiyokawa, S.
  • Organizer: Goldschmidt Conference
  • Place of Presentation: Firenze Fiera, Congress & Exhibition Center(Italy)
• [Presentation] A 150-year variation of Kuroshio transport detected by the nitrate δ15N records in coral skeletons (2013)
  • Author(s): Yamazaki, A. Watanabe, T. , Tsunogai, U., Iwase, F., Yamano, H.
  • Organizer: Goldschmidt Conference
  • Place of Presentation: Firenze Fiera, Congress & Exhibition Center(Italy)
• [Presentation] Effect of environmental change on Porites growth during the last 100 years (2012)
  • Author(s): T. Watanabe, A. Yamazaki, T. Kawamura, J. Isasa, T.
  • Organizer: 国際サンゴ礁学会
  • Place of Presentation: ケアンズコンベンションセンター (オーストラリア)
  • Year and Date: 2012-07-13
• [Presentation] Nitrogen isotope of coral skeletons as a proxy for marine nitrate sources in coral reefs (2012)
  • Author(s): A. Yamazaki, T. Watanabe, U. Tsunogai
  • Organizer: 国際サンゴ礁学会
  • Place of Presentation: ケアンズコンベンションセンター (オーストラリア)
  • Year and Date: 2012-07-11
• [Presentation] Application of coral 15N proxy : interannual variability of water mass in Tatsukushi Bay due to Kuroshio volume changes (2012)
  • Author(s): A. Yamazaki, T. Watanabe, U. Tsunogai
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ(千葉県)
  • Year and Date: 2012-05-25
• [Presentation] nitrogen isotopes in caribbean coral skeletons: decadal variability in north atlantic nitrogen fixation
  • Author(s): Yamazaki A., Hetzinger S., Reumont J. v., Tsunogai U., Watanabe T.
  • Organizer: Ocean Sciences Meeting 2014
  • Place of Presentation: Hawaii Convention Center(USA)
• [Presentation] middle holocene daily light cycle recorded in the sr/ca ratios of a fossil giant clam shell
  • Author(s): Sano Y., Hori M., Takahata N., Shirai K., Watanabe T.
  • Organizer: Ocean Sciences Meeting 2014
  • Place of Presentation: Hawaii Convention Center(USA)
• [Presentation] coral multiple proxy approach to evaluate the impact of coastal land use on reef environments and coral growth
  • Author(s): Watanabe T., Miyaji T., Yamazaki A., Inoue M., Sowa K.
  • Organizer: Ocean Sciences Meeting 2014
  • Place of Presentation: Hawaii Convention Center(USA)
• [Presentation] seasonal to decadal climate signals in skeletal growth and trace elements of the pacific sclerosponges
  • Author(s): Ohmori K., Watanabe T.
  • Organizer: Ocean Sciences Meeting 2014
  • Place of Presentation: Hawaii Convention Center(USA)
• [Presentation] coral sr/ca records from enggano island (indonesia): proxy records of iod-induced upwelling and mean sst in the eastern indian ocean
  • Author(s): Pfeiffer M., Takayanagi H., Cahyarini S. Y., Watanabe T., Garbe-Schoenberg
  • Organizer: Ocean Sciences Meeting 2014
  • Place of Presentation: Hawaii Convention Center(USA)
• [Presentation] Coral evidence of El Nino variability during the Pliocene warm period
  • Author(s): Tsuyoshi Watanabe, Atsushi Suzuki, Shoshiro Minobe, Tatsunori Kawashima, Koji Kameo, Kayo Minoshima, Yolanda M. Aguilar,c Ryoji Wani, Hodaka Kawahata, Kohki Sowa, Takaya Nagai, and Tomoki Kase
  • Organizer: International Joint Workshop‘‘Recent developments in Paleoenvironmental studies’’
  • Place of Presentation: 北海道大学（札幌市）
• [Presentation] Seasonal to decadal climate signals in skeletal growth and trace elements of the Pacific clerosponge
  • Author(s): Ohmori, K. Watanabe, T
  • Organizer: International Joint Workshop‘‘Recent developments in Paleoenvironmental studies’’
  • Place of Presentation: 北海道大学（札幌市）
• [Presentation] A 150-year coral record reveals intensification of oligotrophic Kuroshio transport to temperate North Pacific
  • Author(s): Yamazaki, A. Watanabe, T. , Tsunogai, U., Iwase, F., Yamano, H.
  • Organizer: 3rd International Sclerochronology Conference
  • Place of Presentation: Galeri(UK)
• [Presentation] High latitude coral records in Japan: Implication for climate changes and coral adaptation
  • Author(s): Watanabe, T., *Yamazaki,A., *Kawamura, T., *Jumpei, I., *Nakamura, T., *Sowa, K., *Iwase, F., Nomura, K., Sugihara, K., Abe, O., Sakamoto, T., Murayama, M., and Yamano, H.
  • Organizer: 3rd International Sclerochronology Conference
  • Place of Presentation: Galeri(UK)
• [Presentation] Daily light cycle reconstructed by Sr/Ca in a fossil giant clam, Tridacna gigas, lived in 4.6 ka, southern Japan
  • Author(s): M. Hori, K. Shirai, N. Takahata, Y. Sano, N. Kobayashi, K. Okamoto, T. Watanabe
  • Organizer: Japan Geoscience Union annual meeting
  • Place of Presentation: 幕張メッセ（千葉市）
• [Presentation] サンゴ骨格に記録される 炭素同位体比のvital effectの理解に向けたサンゴポリプモデルの開発
  • Author(s): 中村隆志, 灘岡和夫, 渡邉 敦, 宮島利宏, 渡邊 剛
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ（千葉市）
• [Remarks] 北海道大学大学学術コレクション
  • URL: http://eprints.lib.hokudai.ac.jp/dspace/index.jsp
• [Remarks] CREES サンゴ礁地球環境学 渡邊研究室
  • URL: https://www.sci.hokudai.ac.jp/grp/crees/CREES-web/index.html
• [Remarks] IL-CREES
  • URL: http://il-crees.sci.hokudai.ac.jp/IL-CREES_top.html