Development of a scheme to reproduce a migration history of Japanese sardine using otolith d18O and a data assimilation model

• Project/Area Number: 15H04541
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Aquatic bioproduction science
• Research Institution: The University of Tokyo
• Principal Investigator: Komatsu Kosei 東京大学, 大学院新領域創成科学研究科, 准教授 (30371834)
• Co-Investigator(Kenkyū-buntansha): 瀬藤 聡 国立研究開発法人水産研究・教育機構, 中央水産研究所, グループ長 (10463100) ; 白井 厚太朗 東京大学, 大気海洋研究所, 助教 (70463908) ; 渡邊 千夏子 国立研究開発法人水産研究・教育機構, 中央水産研究所, グループ長 (30371818) ; 銭谷 弘 国立研究開発法人水産研究・教育機構, 中央水産研究所, センター長 (80371954)
• Research Collaborator: SAKAMOTO Tatsuya 東京大学, 大学院新領域創成科学研究科, 日本学術振興会特別研究員(DC2)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000); Fiscal Year 2017: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2016: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000); Fiscal Year 2015: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
• Keywords: マイワシ / 耳石 / 酸素安定同位体比 / 経験水温 / 回遊履歴 / 輸送・回遊履歴 / 水産学 / 耳石酸素安定同位体比 / 海洋データ同化モデル / 成長速度 / 環境因子

Outline of Final Research Achievements

A scheme reproducing a migration history of Japanese sardine (Sardinops melanostictus) was developed using the stable oxygen isotope (δ18O) in the otolith and a data assimilation model for contributing to clarification of the fluctuation mechanism of the stock-biomass. Juveniles were reared in three different water temperatures over the course of a month. Analysis of otolith δ18O was conducted by extracting the portions formed during the rearing period using a micromill, and it derived a linear relationship between otolith δ18O and ambient water temperature. Coupling of the relationship and a data-assimilative model enabled to reproduce a detailed movement of Japanese sardine with a temporal resolution of 10 days from their spawned region around the Kuroshio to the feeding ground in the subarctic area.

Research Products

• [Int'l Joint Research] ケープタウン大学(南アフリカ)
• [Int'l Joint Research] スクリプス海洋研究所(米国)
• [Journal Article] Temperature dependence of δ 18 O in otolith of juvenile Japanese sardine: Laboratory rearing experiment with micro-scale analysis (2017)
  • Author(s): Sakamoto Tatsuya、Komatsu Kosei、Yoneda Michio、Ishimura Toyoho、Higuchi Tomihiko、Shirai Kotaro、Kamimura Yasuhiro、Watanabe Chikako、Kawabata Atsushi
  • Journal Title: Fisheries Research Volume: 194 Pages: 55-59
  • DOI: 10.1016/j.fishres.2017.05.004
  • Peer Reviewed / Open Access
• [Journal Article] Swell-dominant surface waves observed by a moored buoy with a GPS wave sensor in Otsuchi Bay, a ria in Sanriku, Japan (2017)
  • Author(s): Komatsu K, Tanaka K
  • Journal Title: Journal of Oceanography Volume: 73 Issue: 1 Pages: 87-101
  • DOI: 10.1007/s10872-016-0362-4
  • Peer Reviewed
• [Journal Article] Baroclinic circulation and its high frequency variability in Otsuchi Bay on the Sanriku ria coast, Japan (2017)
  • Author(s): Tanaka,K., K. Komatsu, S. Itoh, D.Yanagimoto, M.Ishizu, H.Hasumi, T.T. Sakamoto, S. Urakawa, Y. Michida
  • Journal Title: Journal of Oceanography Volume: 73 Issue: 1 Pages: 25-38
  • DOI: 10.1007/s10872-015-0338-9
  • Peer Reviewed
• [Journal Article] Influence of the Oyashio Current and Tsugaru Warm Current on the circulation and water properties of Otsuchi Bay, Japan (2017)
  • Author(s): Ishizu, M, S. Itoh, K. Tanaka and K.Komatsu
  • Journal Title: Journal of Oceanography Volume: 73 Issue: 1 Pages: 115-131
  • DOI: 10.1007/s10872-016-0383-z
  • Peer Reviewed / Open Access
• [Journal Article] Collection of spawning-condition eels of Ariosoma meeki in the Kuroshio Current in the East China Sea (2016)
  • Author(s): Watanabe Shun, Seishi Hagihara, Michael J. Miller, Masamichi Machida, Kosei Komatsu, Syuhei Nishida and Katsumi Tsukamoto
  • Journal Title: Journal of the Marine Biological Association of the United Kingdom Volume: 96 Issue: 8 Pages: 1701-1707
  • DOI: 10.1017/s002531541500209x
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Subsurface hydrographic structures and the temporal variations of Aleutian eddies (2016)
  • Author(s): Saito, R., I. Yasuda, K. Komatstu, H. Ishiyama, H. Ueno, H. Onishi, T. Setou and M. Shimizu
  • Journal Title: Ocean Dynamics Volume: - Issue: 5 Pages: 605-621
  • DOI: 10.1007/s10236-016-0936-0
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Short–term changes in abundance and population structure of dominant pelagic amphipod species in the Oyashio region during the spring phytoplankton bloom (2015)
  • Author(s): Abe Y, Yamada Y, Saito R, Matsuno K, Yamaguchi A, Komatsu K, Imai I
  • Journal Title: Regional Studies in Marine Science Volume: 3 Pages: 154-162
  • DOI: 10.1016/j.rsma.2015.07.005
  • Peer Reviewed
• [Journal Article] Mixed layer depth and chlorophyll a: Profiling float observations in the Kuroshio-Oyashio Extension region (2015)
  • Author(s): Itoh, S., I. Yasuda, H. Saito, A. Tsuda and K. Komatsu
  • Journal Title: J. Mar. Sys Volume: 151 Pages: 1-14
  • DOI: 10.1016/j.jmarsys.2015.06.004
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] A scheme to reproduce migration history of the Japanese sardine;combination use of otolith d18O and an individual-based migration model (2018)
  • Author(s): Sakamoto T, Komatsu K, Shirai K, Higuchi T, Ishimura T, Setou T, Kamimura Y, Watanabe C, Kawabata A
  • Organizer: JPGU-AGU Joint Meeting 2018
  • Int'l Joint Research
• [Presentation] Reproducing migration history of Japanese sardine using otolith δ18O and a data assimilation model (2018)
  • Author(s): Sakamoto T, Komatsu K, Shirai K, Kamimura Y, Watanabe C, Kawabata A, Yoneda M, Ishimura T, Higuchi T, Setou T, Shimizu M
  • Organizer: 2018 Pacific Transitional Area Symposium (PICES)
  • Int'l Joint Research
• [Presentation] Reproducing migration history of Japanese sardine using otolith δ18O and a data assimilation model (2018)
  • Author(s): Sakamoto T, Komatsu K, Shirai K, Kamimura Y, Watanabe C, Kawabata A, Yoneda M, Ishimura T, Higuchi T, Setou T, Shimizu M
  • Organizer: 6th International Otolith Symposium in Taiwan 2018
  • Int'l Joint Research
• [Presentation] カリフォルニアマイワシの仔稚魚期の回遊と水温-成長関係 (2017)
  • Author(s): 坂本達也, 小松幸生, 高橋素光, 樋口富彦, 白井厚太朗, 石村豊穂
  • Organizer: 水産海洋学会2017年度研究発表大会
• [Presentation] 黒潮による黒潮続流域表層への水塊輸送について (2017)
  • Author(s): 峯俊介, 小松幸生
  • Organizer: 水産海洋学会2017年度研究発表大会
• [Presentation] 黒潮・黒潮続流域における表層への栄養塩輸送量の見積もり(I) (2017)
  • Author(s): 峯俊介, 小松幸生
  • Organizer: 日本海洋学会2017年度秋季大会
• [Presentation] 黒潮域における水平拡散係数のスケール依存性 (2017)
  • Author(s): 小松幸生, 廣江豊
  • Organizer: 日本海洋学会2017年度秋季大会
• [Presentation] Reproducing migration history of Japanese sardine using otolith δ18O and a data assimilation model (2017)
  • Author(s): Sakamoto T, Komatsu K, Shirai K, Kamimura Y, Watanabe C, Kawabata A, Yoneda M, Ishimura T, Higuchi T, Setou T, Shimizu M
  • Organizer: JPGU-AGU Joint Meeting 2017
  • Int'l Joint Research
• [Presentation] Biogeochemical impacts of isopycnal nitrate transport along the Kuroshio (2017)
  • Author(s): Komatsu K, Hiroe Y, Yasuda I
  • Organizer: JPGU-AGU Joint Meeting 2017
  • Int'l Joint Research
• [Presentation] Reproducing migration history of Japanese sardine using otolith δ18O and a data assimilation model (2017)
  • Author(s): Sakamoto T, Komatsu K, Shirai K, Kamimura Y, Watanabe C, Kawabata A, Yoneda M, Ishimura T, Higuchi T, Setou T, Shimizu M
  • Organizer: ICES/PICES Symposium of “Drivers of dynamics of small pelagic fish resources”
  • Place of Presentation: Victoria, BC, Canada
  • Int'l Joint Research
• [Presentation] 黒潮 Nutrient Stream： 源流から続流域の構造・硝酸塩輸送・変動と生物生産へのインパクト (2017)
  • Author(s): 小松幸生, 廣江豊, 安田一郎
  • Organizer: 東京大学大気海洋研究所共同利用研究集会「黒潮域における混合と栄養塩供給・生物生産へ与える影響」
  • Place of Presentation: 東京大学, 千葉県柏市
  • Invited
• [Presentation] 耳石の酸素安定同位体比と海洋同化モデルを用いたマイワシの回遊履歴推定 (2016)
  • Author(s): 坂本達也、小松幸生、白井厚太朗、上村泰洋、渡邊千夏子、川端淳、瀬藤聡、清水学
  • Organizer: 日本海洋学会2016年度春季大会
  • Place of Presentation: 東京大学本郷キャンパス（東京都文京区）
  • Year and Date: 2016-03-15
• [Presentation] 黒潮域における水平拡散係数の実態について (2016)
  • Author(s): 小松幸生, 廣江豊
  • Organizer: 水産海洋学会2016年度研究発表大会
  • Place of Presentation: 東京海洋大学, 東京都港区
• [Presentation] Reproducing migration history of Japanese sardine using otolith δ18O and a data assimilation model (2016)
  • Author(s): Sakamoto T, Komatsu K, Shirai K, Kamimura Y, Watanabe C, Kawabata A, Yoneda M, Ishimura T, Higuchi T, Setou T, Shimizu M
  • Organizer: AORI-SIO Symposium for Building Strategic Partnership、Scripps institution of oceanography
  • Place of Presentation: La Jolla, CA, USA
  • Int'l Joint Research
• [Presentation] 高解像度漂流ブイによる黒潮域における水平拡散係数のスケール依存性 (2016)
  • Author(s): 小松幸生, 廣江豊
  • Organizer: 日本海洋学会2016年度秋季大会
  • Place of Presentation: 鹿児島大学, 鹿児島県鹿児島市
• [Presentation] Reproducing migration history of Japanese sardine using otolith δ18O and a data assimilation model (2016)
  • Author(s): Sakamoto T, Komatsu K, Shirai K, Kamimura Y, Watanabe C, Kawabata A, Yoneda M, Ishimura T, Higuchi T, Setou T, Shimizu M
  • Organizer: 日本地球惑星科学連合2016年大会JpGU-AGU joint session
  • Place of Presentation: 幕張メッセ, 千葉県千葉市
  • Int'l Joint Research / Invited
• [Presentation] 耳石の酸素安定同位体比を用いたマイワシの稚魚期経験水温推定 (2015)
  • Author(s): 坂本達也、小松幸生、白井厚太朗、上村泰洋、渡邊千夏子、川端淳、瀬藤聡、清水学
  • Organizer: 水産海洋学会2015年度研究発表大会
  • Place of Presentation: 釧路市観光国際交流センター（北海道釧路市）
  • Year and Date: 2015-10-10
• [Remarks] 3.イワシ類およびマアジ仔魚の輸送・生残機構の解明
  • URL: http://lmr.aori.u-tokyo.ac.jp/feog/kosei/research.html#title03