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Aggregate-biosphere: Unveiling hidden regulatory processes in the oceanic carbon cycle

Research Project

Project/Area Number 19H05667
Research Category

Grant-in-Aid for Scientific Research (S)

Allocation TypeSingle-year Grants
Review Section Broad Section K
Research InstitutionThe University of Tokyo

Principal Investigator

永田 俊  東京大学, 大気海洋研究所, 教授 (40183892)

Co-Investigator(Kenkyū-buntansha) 横川 太一  国立研究開発法人海洋研究開発機構, 超先鋭研究開発部門(超先鋭研究開発プログラム), 副主任研究員 (00402751)
三木 健  龍谷大学, 先端理工学部, 教授 (00815508)
本多 牧生  国立研究開発法人海洋研究開発機構, 地球環境部門(地球表層システム研究センター), 上席研究員(シニア) (20359160)
鏡味 麻衣子  横浜国立大学, 大学院環境情報研究院, 教授 (20449250)
福田 秀樹  東京大学, 大気海洋研究所, 准教授 (30451892)
小川 浩史  東京大学, 大気海洋研究所, 教授 (50260518)
緒方 博之  京都大学, 化学研究所, 教授 (70291432)
原田 尚美  東京大学, 大気海洋研究所, 教授 (70344281)
Project Period (FY) 2019-06-26 – 2024-03-31
Project Status Granted (Fiscal Year 2023)
Budget Amount *help
¥200,590,000 (Direct Cost: ¥154,300,000、Indirect Cost: ¥46,290,000)
Fiscal Year 2023: ¥35,750,000 (Direct Cost: ¥27,500,000、Indirect Cost: ¥8,250,000)
Fiscal Year 2022: ¥37,050,000 (Direct Cost: ¥28,500,000、Indirect Cost: ¥8,550,000)
Fiscal Year 2021: ¥37,440,000 (Direct Cost: ¥28,800,000、Indirect Cost: ¥8,640,000)
Fiscal Year 2020: ¥39,000,000 (Direct Cost: ¥30,000,000、Indirect Cost: ¥9,000,000)
Fiscal Year 2019: ¥51,350,000 (Direct Cost: ¥39,500,000、Indirect Cost: ¥11,850,000)
Keywords凝集体 / 海洋炭素循環 / 微生物群集 / 粒子動態 / 生物炭素ポンプ / 海洋 / 物質循環 / 細菌 / ウィルス / 遺伝子解析
Outline of Research at the Start

凝集体(マリンスノー)は、海洋における大規模な炭素鉛直輸送を駆動する重要な媒体であるが、その生成・崩壊プロセスには不明の点が多い。本研究では、凝集体を生息場とする微生物(原核微生物、真核微生物、ウイルス)の群集を「凝集体生命圏」として新たに概念化し、凝集体の生成・発達・崩壊に関わる主要な制御要因として提唱する。凝集体生命圏の複雑な振る舞いに対し、粒子動態、炭素循環、微生物・遺伝子解析、生物情報科学、数理モデリングの専門家の学際的な結集のもとに新たな切り口から理解を深め、これまで見逃されていた凝集体生命圏による炭素鉛直輸送の制御機構を解明する。

Outline of Annual Research Achievements

研究目的である、凝集体生命圏の構造・機能の包括的解明に向けて、観測、実験、モデリングを連結させた研究を、全参画機関の有機的な連携のもとに推進した。2022年度は、前年度までに引き続き、主要な観測プラットフォームであるマリンスノーキャッチャーを用いた観測を計画通りに実施した。観測により採取された試料は、2021年度に引き続き、分担者や協力者による分析に供された。また、培養実験による凝集体生命圏の動態解析を進めた。主な研究成果は以下のとおりである。(1)凝集体生命圏の制御に関わる微生物群集(原核生物、微小藻類、菌類)とウィルスの動態や機能に関する研究成果を国際誌に発表した。(2)沈降粒子にアソシエートした微生物群集構造の特性を、先端的なバイオインフォーマティクス解析手法を用いて解析し、その成果を学会等で公表した。(3)凝集体の構成成分であるコロイド粒子と細菌の相互作用が、細菌細胞表面の粗度によって制御されていることを新たに見出し、その成果を論文として発表した。(4)海水中の粒子の粒経分布と沈降粒子フラックスの関係について解析を行い、その成果を国際誌に公表した。(5)実験的な解析から、菌類による感染が、珪藻類の生物物理的な性状の変化を引き起こし、沈降フラックスに影響を及ぼすことを明らかにした。以上の成果は、凝集体生命圏の構造と機能を理解するうえで極めて重要であり、本研究課題の推進に大きく寄与するものである。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

本研究で導入した凝集体捕集装置(マリンスノーキャッチャ―)を用いた船舶観測を実施した。具体的には新青丸KS22-15航海(2022年10月16日-10月27日)において鹿児島沖のピコプランクトン・ナノプランクトンが卓越する亜熱帯海域での観測を実施し、粒子解析、顕微鏡解析、遺伝子解析、有機物解析、代謝活性解析に供する試料を採取した。サンプルは、研究分担者と協力者に分与された。これらの試料の分析は2023年度も継続的に実施する。(2)2021年度に引き続き、海洋地球研究船みらい航海において、時系列セジメントトラップ係留系を用いた得られた データの解析を進め、沈降粒子の季節変動の特性に関する解析を進めた。(3)バイオインフォマティクス解析により、2021年度までに収集された凝集体生命圏の群集構造データの解析を進めた。(4)数理モデリングから、環境変動に対する凝集体生命圏の応答の理論的な解析を進めた。(5)凝集体動態に関わる微生物群集(原核生物、微小藻類、菌類)とウィルスの動態や機能に関する研究成果をとりまと、め、国内外の学会で発表するとともに、11本の原著論文として国際誌に公表した。以上より、研究はおおむね順調に進展していると判断した。

Strategy for Future Research Activity

2023年度には、新青丸による観測を実施し、海洋の物理環境と凝集体動態の関連についての解明に資する現場観測データを取得する予定である。また、2020-2022年度に得られたサンプルの分析(微生物解析、生物地球化学解析、顕微鏡解析、粒子解析)とデータの整理・統合化を進め、凝集体生命圏の季節的、空間的動態に関して成果をまとめる。具体的には、 2022年度までに検討したバイオインフォーマティクスの方法論を適用することで、凝集体生命圏の構造と機能の解析結果をまとめる。また、国際沿岸海洋研究センターの施設などを利用した培養実験の結果の解析を進め、環境変化に対する凝集体生命圏の応答についての成果をまとめる。一方、外洋域への展開として、「みらい」航海で得られた観測データの解析を進める。さらに、これまで検討を進めてきた、凝集体生命圏を構成する微生物群集の動態に関するモデル等を用いて、凝集体生命圏の構造的な特徴、その普遍性、変動についての研究成果の統合化を進める。全体会議は原則として年に1回のペースで実施するが、それ以外に、研究調整のためのオンライン会議は随時実施し、異分野連携を促進する。

Assessment Rating
Interim Assessment Comments (Rating)

A: In light of the aim of introducing the research area into the research categories, the expected progress has been made in research.

Report

(8 results)
  • 2022 Annual Research Report
  • 2021 Abstract (Interim Assessment) ( PDF )   Annual Research Report   Interim Assessment (Comments) ( PDF )
  • 2020 Annual Research Report
  • 2019 Abstract ( PDF )   Comments on the Screening Results ( PDF )   Annual Research Report
  • Research Products

    (80 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (23 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 23 results,  Open Access: 19 results) Presentation (56 results) (of which Int'l Joint Research: 25 results,  Invited: 19 results) Remarks (1 results)

  • [Journal Article] Bacterial surface roughness regulates nanoparticle scavenging in seawater2023

    • Author(s)
      Yamada Yosuke、Patel Nirav、Fukuda Hideki、Nagata Toshi、Mitarai Satoshi、Azam Farooq
    • Journal Title

      Limnology and Oceanography

      Volume: 68 Issue: 4 Pages: 780-789

    • DOI

      10.1002/lno.12309

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Fast and Easy Method to Co-extract DNA and RNA from an Environmental Microbial Sample2023

    • Author(s)
      Okazaki Yusuke、Nguyen Tuyen Thi、Nishihara Arisa、Endo Hisashi、Ogata Hiroyuki、Nakano Shin-ichi、Tamaki Hideyuki
    • Journal Title

      Microbes and Environments

      Volume: 38 Issue: 1 Pages: n/a

    • DOI

      10.1264/jsme2.ME22102

    • ISSN
      1342-6311, 1347-4405
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hydrothermal-derived black carbon as a source of recalcitrant dissolved organic carbon in the ocean2023

    • Author(s)
      Yamashita, Y., Y. Mori, and H. Ogawa
    • Journal Title

      Science Advances

      Volume: - Issue: 6

    • DOI

      10.1126/sciadv.ade3807

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fungal parasitism on diatoms alters formation and bio-physical properties of sinking aggregates2023

    • Author(s)
      Klawonn Isabell、Van den Wyngaert Silke、Iversen Morten H.、Walles Tim J. W.、Flintrop Clara M.、Cisternas-Novoa Carolina、Nejstgaard Jens C.、Kagami Maiko、Grossart Hans-Peter
    • Journal Title

      Communications Biology

      Volume: 6 Issue: 1 Pages: 206-206

    • DOI

      10.1038/s42003-023-04453-6

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Disturbed virus-bacteria dynamics in Otsuchi Bay (Japan) after the mega-earthquake and tsunami in March 20112022

    • Author(s)
      Nagata T、Yang Y、Fukuda H
    • Journal Title

      Aquatic Microbial Ecology

      Volume: 88 Pages: 31-41

    • DOI

      10.3354/ame01984

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Temporal and regional variabilities in the attenuation of sinking particulate organic carbon in the Kuroshio region2022

    • Author(s)
      Hideki Fukuda, Kiyotaka Hidaka, Takashi Setou, Akira Kusaka, Daisuke Ambe, Hiroaki Saito
    • Journal Title

      Frontier of Marine Science

      Volume: 9:875362 Pages: 1-17

    • DOI

      10.3389/fmars.2022.875362

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tight association between microbial eukaryote and giant virus communities in the Arctic Ocean2022

    • Author(s)
      Xia Jun、Kameyama Sohiko、Prodinger Florian、Yoshida Takashi、Cho Kyoung‐Ho、Jung Jinyoung、Kang Sung‐Ho、Yang Eun‐Jin、Ogata Hiroyuki、Endo Hisashi
    • Journal Title

      Limnology and Oceanography

      Volume: 67 Issue: 6 Pages: 1343-1356

    • DOI

      10.1002/lno.12086

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Preface: “Idea Paper” for sharing diverse research ideas2022

    • Author(s)
      Miki Takeshi、Nakamura Masahiro、Kurokawa Hiroko、Matsui Kazuaki
    • Journal Title

      Ecological Research

      Volume: 37 Issue: 4 Pages: 450-454

    • DOI

      10.1111/1440-1703.12338

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] New index of functional specificity to predict the redundancy of ecosystem functions in microbial communities2022

    • Author(s)
      Cheng Wan-Hsuan、Hsieh Chih-hao、Chang Chun-Wei、Shiah Fuh-Kwo、Miki Takeshi
    • Journal Title

      FEMS Microbiology Ecology

      Volume: 98 Issue: 6 Pages: 1-9

    • DOI

      10.1093/femsec/fiac058

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The new chytridiomycete Paradinomyces triforaminorum gen. et sp. nov. co-occurs with other parasitoids during a Kryptoperidinium foliaceum (Dinophyceae) bloom in the Baltic Sea2022

    • Author(s)
      Rene Albert、Alacid Elisabet、Vishnyakov Andrey E.、Seto Kensuke、Tcvetkova Victoria S.、Gordi Jordina、Kagami Maiko、Kremp Anke、Garc?s Esther、Karpov Sergey A.
    • Journal Title

      Harmful Algae

      Volume: 120 Pages: 102352-102352

    • DOI

      10.1016/j.hal.2022.102352

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Seasonality of parasitic and saprotrophic zoosporic fungi: linking sequence data to ecological traits2022

    • Author(s)
      Van den Wyngaert Silke、Ganzert Lars、Seto Kensuke、Rojas-Jimenez Keilor、Agha Ramsy、Berger Stella A、Woodhouse Jason、Padisak Judit、Wurzbacher Christian、Kagami Maiko、Grossart Hans-Peter
    • Journal Title

      The ISME Journal

      Volume: 16 Issue: 9 Pages: 2242-2254

    • DOI

      10.1038/s41396-022-01267-y

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fate of dissolved black carbon in the deep Pacific Ocean2022

    • Author(s)
      Yamashita Youhei、Nakane Motohiro、Mori Yutaro、Nishioka Jun、Ogawa Hiroshi
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 307-307

    • DOI

      10.1038/s41467-022-27954-0

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Phytoplankton blooms in summer and autumn in the northwestern subarctic Pacific detected by the mooring and float systems2022

    • Author(s)
      Fujiki Tetsuichi、Hosoda Shigeki、Harada Naomi
    • Journal Title

      Journal of Oceanography

      Volume: 78 Issue: 2 Pages: 63-72

    • DOI

      10.1007/s10872-021-00628-z

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Transparent exopolymer particles in deep oceans: Synthesis and future challenges2021

    • Author(s)
      Nagata, T., Yamada, Y., Fukuda, H.
    • Journal Title

      Gels

      Volume: 7 Issue: 3 Pages: 75-75

    • DOI

      10.3390/gels7030075

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Geographic Variation of Particle Size Distribution in the Kuroshio Region: Possible Causes in the Upper Water Column2021

    • Author(s)
      Yamada, Y., Fukuda, H., Umezawa, Y., Nagata, T.
    • Journal Title

      Frontiers in Marine Science

      Volume: 8 Pages: 768766-768766

    • DOI

      10.3389/fmars.2021.768766

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Viral Production in Seawater Filtered Through 0.2-μm Pore-Size Filters: A Hidden Biogeochemical Cycle in a Neglected Realm2021

    • Author(s)
      Yang Yanhui、Nagata Toshi
    • Journal Title

      Frontiers in Microbiology

      Volume: 12

    • DOI

      10.3389/fmicb.2021.774849

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Heterogeneity of Transparent Exopolymer Particles in a Coastal Marine Environment (Sagami Bay, Japan): Seasonal Variation and Its Possible Bacterial Causes2021

    • Author(s)
      Sugimoto Kugako、Fukuda Hideki、Koike Isao、Nagata Toshi
    • Journal Title

      Frontiers in Marine Science

      Volume: 8

    • DOI

      10.3389/fmars.2021.766771

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantitative Assessment of Nucleocytoplasmic Large DNA Virus and Host Interactions Predicted by Co-occurrence Analyses2021

    • Author(s)
      Meng Lingjie、Endo Hisashi、Blanc-Mathieu Romain、Chaffron Samuel、Hern?ndez-Vel?zquez Rodrigo、Kaneko Hiroto、Ogata Hiroyuki
    • Journal Title

      mSphere

      Volume: 6 Issue: 2

    • DOI

      10.1128/msphere.01298-20

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impact of mesoscale eddies on particulate organic carbon flux in the western subarctic North Pacific2021

    • Author(s)
      Dobashi Ryo、Ueno Hiromichi、Matsudera Nozomi、Fujita Isao、Fujiki Tetsuichi、Honda Makio C.、Harada Naomi
    • Journal Title

      Journal of Oceanography

      Volume: 78 Issue: 1 Pages: 1-14

    • DOI

      10.1007/s10872-021-00620-7

    • NAID

      40022809834

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Eukaryotic virus composition can predict the efficiency of carbon export in the global ocean2021

    • Author(s)
      Kaneko Hiroto、Blanc-Mathieu Romain、Endo Hisashi、Chaffron Samuel、Delmont Tom O.、Gaia Morgan、Henry Nicolas、Hern?ndez-Vel?zquez Rodrigo、Nguyen Canh Hao、Mamitsuka Hiroshi、Forterre Patrick、Jaillon Olivier、de Vargas Colomban、Sullivan Matthew B.、Suttle Curtis A.、Guidi Lionel、Ogata Hiroyuki
    • Journal Title

      iScience

      Volume: 24 Issue: 1 Pages: 102002-102002

    • DOI

      10.1016/j.isci.2020.102002

    • NAID

      120006951684

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A DNA metabarcoding approach for recovering plankton communities from archived samples fixed in formalin.2021

    • Author(s)
      Shiozaki, T., Itoh, F., Hirose, Y., Onodera, J., Kuwata, A., Harada, N.
    • Journal Title

      PLOS ONE

      Volume: - Issue: 2 Pages: e0245936-e0245936

    • DOI

      10.1371/journal.pone.0245936

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Biogeography of marine giant viruses reveals their interplay with eukaryotes and ecological functions2020

    • Author(s)
      Endo Hisashi、Blanc-Mathieu Romain、Li Yanze、Salazar Guillem、Henry Nicolas、Labadie Karine、de Vargas Colomban、Sullivan Matthew B.、Bowler Chris、Wincker Patrick、Karp-Boss Lee、Sunagawa Shinichi、Ogata Hiroyuki
    • Journal Title

      Nature Ecology & Evolution

      Volume: 4 Issue: 12 Pages: 1639-1649

    • DOI

      10.1038/s41559-020-01288-w

    • NAID

      120006940270

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effective vertical transport of particulate organic carbon in the Western North Pacific subarctic region2020

    • Author(s)
      Honda MC
    • Journal Title

      Frontiers in Earth Science

      Volume: 8

    • DOI

      10.3389/feart.2020.00366

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 海洋における微生物の関わる凝集現象とその意義2023

    • Author(s)
      永田俊
    • Organizer
      高分子と水・分離に関する研究会 2022年度界面動電現象研究会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 局所密度依存的多重寄生を引き起こす寄生者についての個体群動態モデル2023

    • Author(s)
      三木健, 松井一彰, 鏡味麻衣子
    • Organizer
      第70回日本生態学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 沈降性および懸濁性海洋粒子に特徴的な原核生物群集組成の海城間比較2022

    • Author(s)
      海老原諒子、福田秀樹、横川太一、永田俊
    • Organizer
      日本海洋学会2022年度秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 海洋沈降性粒子の微生物群集ネットワーク2022

    • Author(s)
      海老原諒子、福田秀樹、横川太一、山田洋輔、永田俊
    • Organizer
      日本微生物生態学会第35回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 光学的観測で捉える粒径分布の時空間変動2022

    • Author(s)
      福田秀樹
    • Organizer
      日本海洋学会2022年度秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Rapid characterization of novel giant viruses using nanopore sequencing.2022

    • Author(s)
      Hikida H., Okazaki Y., Zhang R., Ogata H.
    • Organizer
      VoM 2022 Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Viruses as part of Earth’s life system.2022

    • Author(s)
      Ogata H
    • Organizer
      The 12th Asian Symposium on Microbial Ecology (ASME2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Viruses associated with the carbon export efficiency2022

    • Author(s)
      Yang Q., Endo H., Ogata H.
    • Organizer
      Greenocean workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Horizontal and vertical profiling of plankton communities in the Eastern Indian Ocean2022

    • Author(s)
      Liu W., Xia J., Hisashima F., Ogawa H., Ogata H., Endo H.,
    • Organizer
      35th JSME annual meeting
    • Related Report
      2022 Annual Research Report
  • [Presentation] Characterization of sinking microeukaryote communities in spring Oyashio waters.2022

    • Author(s)
      Yang Q., Yang Y., Fukuda H., Okazaki Y., Nagata T., Ogata H., Endo H.,
    • Organizer
      35th JSME annual meeting
    • Related Report
      2022 Annual Research Report
  • [Presentation] 性質の異なる有機炭素に対する微生物群集による分解応答ダイナミクス:バイオログ培養実験と微生物群集モデル2022

    • Author(s)
      三木 健,徳島 生大
    • Organizer
      第86回日本陸水学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 海底でおこる植物プランクトンブルームの発見2022

    • Author(s)
      塩崎拓平・藤原周・杉江恒二・西野茂人・眞壁明子・原田尚美
    • Organizer
      The 35th Japanese Society of Microbial Ecology (JSME) Annual Conference
    • Related Report
      2022 Annual Research Report
  • [Presentation] Basic research on the functioning of marine life in the Southern Ocean and its relationship to science policy.2022

    • Author(s)
      Harada, N., Shiozaki, T., Shibata, A.
    • Organizer
      10th SCAR Open Science Conference 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Phytoplankton dynanmics in the high nutrient-low chlorophyll regions: the northwesternn subarctic Pacific2022

    • Author(s)
      Fujiki, T., Hosoda, S., Harada, N.
    • Organizer
      7th Argo Sciencne Workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optically stimulated luminescence dating for marine sediments from the Bering Sea2022

    • Author(s)
      Sugisaki, S., Jan-Pieter Buylaert, Andrew Murray, Masao Uchida, Saburo Sakai, Naomi Harada
    • Organizer
      AMS 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Paleoproductivity records in the Subarctic Norht Pacific Ocean: Baseline marine ecological data for the Holocene2022

    • Author(s)
      Addison, J., Finney, B., Harada, N., Nagashima, K., Fitzhugh, B., West, C.
    • Organizer
      Ecosystem Studies of Sub-arctic and Arctic Seas 2022 Annual Science Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2010年から2021年にかけての西部北極海陸だな斜面域における沈降粒子フラックスの経年変動2022

    • Author(s)
      Onodera, J., Watanabe, E., Mizobata, K., Muramatu, M., Itoh, M., Tanaka, Y., Eun Jin Yan, Harada, N.
    • Organizer
      JpGU
    • Related Report
      2022 Annual Research Report
  • [Presentation] 海中後方散乱データ解析による生物炭素ポンプ研究2022

    • Author(s)
      Honda, M.C., Hosoda, S., Harada, N.
    • Organizer
      JpGU
    • Related Report
      2022 Annual Research Report
  • [Presentation] Impact of mesoscale eddies on particulate organic carbon flux in the western subarctic North Pacific2022

    • Author(s)
      Dobashi, R. Ueno, H., Matsudera, N., Fujita, I., Fujiki, T., Honda, M.C., and Harada, N
    • Organizer
      JpGU
    • Related Report
      2022 Annual Research Report
  • [Presentation] The roles of chytrids in aquatic ecosystems2022

    • Author(s)
      Maiko Kagami
    • Organizer
      Chytrid workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 藻類にとりつく様々な菌類たち:宿主寄生者関係と生態系への影響2022

    • Author(s)
      鏡味麻衣子
    • Organizer
      日本藻類学会第46回大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Mathematical model for aggregated multiple infections of fungal parasites on phytoplankton host cells2022

    • Author(s)
      Takeshi MIKI, Kinuyo YONEYA, Kazuaki MATSUI, Maiko KAGAMI
    • Organizer
      日本生態学会第69回全国大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Phytoplankton blooms in summer and autumn in the northwestern subarctic Pacific detected by the mooring buoy and BGC Argo float.2022

    • Author(s)
      Fujiki, T., Hosoda, S., Harada, N.
    • Organizer
      Ocean Sciences Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Emergent pattern of virus-like particle distribution in the deep oceans: insights gained from a numerical model2021

    • Author(s)
      永田 俊
    • Organizer
      第10回水圏ウィルスワークショップ10th Aquatic Virus Workshop
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 黒潮海域の沈降・懸濁粒子に付着する原核生物群集構造2021

    • Author(s)
      海老原諒子、福田秀樹、横川太一、永田俊
    • Organizer
      日本海洋学会2021年度秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] The association of marine viruses and carbon cycle revealed by a large omics dataset2021

    • Author(s)
      Hiroto Kaneko, Blanc-Mathieu Romain, Hisashi Endo, Hiroyuki Ogata
    • Organizer
      10th Aquatic Virus Workshop
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Who infects whom? Assessment of Co-occurrence Methods for NCLDV-Host Interactions2021

    • Author(s)
      Lingjie Meng, Hisashi Endo, Romain Blanc-Mathieu, Samuel Chaffron, Rodrigo Hernandez-Velazquez, Hiroto Kaneko, Hiroyuki Ogata
    • Organizer
      10th Aquatic Virus Workshop
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characteristics and association of microbial eukaryotic and Mimiviridae communities in the Beaufort Sea2021

    • Author(s)
      Jun Xia, Sohiko Kameyama, Florian Prodinger, Takashi Yoshida, Kyoung-Ho Cho, Jinyoung Jung, Sung-Ho Kang, Eun-Jin Yang, Hiroyuki Ogata, Hisashi Endo
    • Organizer
      10th Aquatic Virus Workshop
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] なんでもありのウイルス進化、だから難しい、だから面白い!2021

    • Author(s)
      緒方博之
    • Organizer
      第六回微生物生態マラソンセミナー
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Macroscale vertical power-law distribution of bacteria in dark oceans can emerge from microscale bacteria-particle interactions2021

    • Author(s)
      Miki, T., Po-Ju Ke
    • Organizer
      第68回日本生態学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Major modeling approaches that are useful to environmental microbiology: their applicability and limitations2020

    • Author(s)
      Miki, T.
    • Organizer
      Congress of the Society of Microbiology of Chile (Congreso SoMiCh 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Comparison of POC flux vertical attenuation between the subarctic and subtropical regions in the western North Pacific2020

    • Author(s)
      Honda, M
    • Organizer
      American Geophysical Union Ocean Science Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] TARAメタオミクスデータから解き明かすRNAウイルスと炭素循環の関わり2020

    • Author(s)
      金子博人, Romain Blanc-Mathieu, 遠藤寿, 緒方博之
    • Organizer
      第一回ウイルス生態学セミナー「~内なるRNAウイルスの生きざまを見よ」
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 水域生態系における炭素蓄積の謎:細菌の群集集合と炭素循環のフィードバック2020

    • Author(s)
      Miki, T. Silke Van den Wyngaert, Olivier Vanholsbeeck, Luca Zoccarato, Hans-Peter Grossart
    • Organizer
      第16回生物数学とその応用
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 西部北太平洋亜寒帯域の効率的な生物炭素ポンプ(そのメカニズム)2020

    • Author(s)
      本多牧生
    • Organizer
      日本海洋学会2020秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 沈降性凝集体に発達する原核微生物群集の動態:メソコスムを用いた実験的解析2020

    • Author(s)
      海老原諒子、福田秀樹、横川太一、永田俊
    • Organizer
      日本海洋学会2020秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 深層学習を利用した人工衛星によるリモートセンシングに基づく海洋微生物組成予測法の開発2020

    • Author(s)
      金子博人, 富井健太郎, 中村良介, 遠藤寿, 緒方博之
    • Organizer
      第9回生命医薬情報学連合会(IIBMP2020)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 宇宙から海洋生態系を観測する:リモセン × メタゲノム2020

    • Author(s)
      金子博人, 富井健太郎, 中村良介, 遠藤寿, 緒方博之
    • Organizer
      生命情報科学若手の会 第12回研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Comparison of POC flux vertical attenuation between the subarctic and subtropical regions in the western North Pacific, 20202020

    • Author(s)
      Honda, M
    • Organizer
      American Geophysical Union Ocean Science Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 水域生態系における炭素蓄積の謎:細菌の群集集合と炭素循環のフィードバック.2020

    • Author(s)
      Miki, T. Silke Van den Wyngaert, Olivier Vanholsbeeck, Luca Zoccarato, Hans-Peter Grossart
    • Organizer
      第16回生物数学とその応用
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Global genetic data reveal lineages of giant viruses and other eukaryotic viruses associated with the carbon export efficiency.2019

    • Author(s)
      Ogata H., Blanc-Mathieu R., Kaneko H., Endo H.
    • Organizer
      4th Ringberg Symposium on Giant Virus Biology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Homege to deep lake Maarsseveen: from Ellen's PhD thesis toward ecologocal study of chytrids.2019

    • Author(s)
      Kagami, M.
    • Organizer
      Perspectives in Aquatic Ecology (Symposium on the occation of the retirement of Ellen van Donk (NIOO-KNAW)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Keynote address: Swimming fungi: Potential drivers of aquatic food webs and biogeochemical cycles.2019

    • Author(s)
      Kagami, M.
    • Organizer
      Symposium of Aquatic Microbial Ecology (SAME) 16
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Eukaryotic giant viruses: update on their evolution, diversity and ecology.2019

    • Author(s)
      Ogata H.
    • Organizer
      ELSI Thermophiles seminar - Microbes from the Hadean Hel
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Importance of biogenic opal in the biological pump.2019

    • Author(s)
      Honda, M.
    • Organizer
      Goldschmidt conference 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Do viruses enhance the carbon export down to the deep ocean?2019

    • Author(s)
      Ogata H.
    • Organizer
      Gordon Research Conference - Applied and Environmental Microbiology: Shaping the Earth’s Microverse
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Feedback between bacterial community assembly and refractory carbon accumulation in aquatic ecosystems.2019

    • Author(s)
      Miki, T., Silke Van den Wyngaert, Olivier Vanholsbeeck, Luca Zoccarato, Hans-Peter Grossart
    • Organizer
      Symposium of Aquatic Microbial Ecology (SAME) 16
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ecosystem-level stabilizing effects of biodiversity via nutrient diversity feedbacks in multitrophic systems.2019

    • Author(s)
      Chang CW, Hsieh,CC-H, Miki, T.
    • Organizer
      Symposium of Aquatic Microbial Ecology (SAME) 16
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analysis of Tara Oceans omics data reveals eukaryotic plankton viruses related to carbon export flux and efficiency.2019

    • Author(s)
      Kaneko H., Blanc-Mathieu R., Endo H., Ogata H.
    • Organizer
      19th Annual International Workshop on Bioinformatics and Systems Biology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 植物プランクトン寄生性菌類の宿主特異性:宿主の遺伝的多様性はどこまで解明できるのか?2019

    • Author(s)
      鏡味麻衣子
    • Organizer
      北海道大学低温科学研究所研究集会「環境微生物学における革新的手法および生態系保全における活用法」
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 陸域だけじゃない、水域でも重要な真菌類の多様性と機能2019

    • Author(s)
      鏡味麻衣子
    • Organizer
      日本微生物生態学会第33回大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 海洋ウイルスと地球の炭素循環:TARAオミクスデータの解析による発見2019

    • Author(s)
      金子博人, Blanc-Mathieu R., 遠藤 寿, 緒方博之
    • Organizer
      インテリジェントバイオインフォマティクス研究チームセミナー
    • Related Report
      2019 Annual Research Report
  • [Presentation] 核生物プランクトンに感染するウイルスと沈降粒子による炭素輸送の効率との地球規模での関連2019

    • Author(s)
      金子博人, Blanc-Mathieu R., 遠藤寿, 緒方博之
    • Organizer
      JSME Environmental Virus Meeting 2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] NCLDV host prediction with marker gene co-occurrence analysis in marine metagenomes.2019

    • Author(s)
      Meng L., Endo H., Blanc-Mathieu R., Ogata H.
    • Organizer
      JSME Environmental Virus Meeting 2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Global biogeography of giant viruses highlights their interplay with eukaryotic community.2019

    • Author(s)
      Endo H., Li Y., Blanc-Mathieu R., Ogata H.
    • Organizer
      日本海洋学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] The abundance profile of eukaryotic plankton viruses could predict global ocean carbon export efficiency.2019

    • Author(s)
      Kaneko H., Blanc-Mathieu R., Endo H., Ogata H.
    • Organizer
      第8回 生命医薬情報連合大会(IIBMP)
    • Related Report
      2019 Annual Research Report
  • [Remarks] 基盤S「凝集体生命圏:海洋炭素循環の未知制御機構の解明」

    • URL

      http://bg.aori.u-tokyo.ac.jp/kibans/

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report 2019 Annual Research Report

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Published: 2019-06-27   Modified: 2024-12-25  

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