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Development of a framework for controlling aquatic ecosystem dynamics using host-parasite systems as a model system

Research Project

Project/Area Number 20H03323
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 45040:Ecology and environment-related
Research InstitutionRyukoku University (2022-2023)
Kyoto University (2020-2021)

Principal Investigator

Ushio Masayuki  龍谷大学, 公私立大学の部局等, 研究員 (40722814)

Co-Investigator(Kenkyū-buntansha) 鏡味 麻衣子  横浜国立大学, 大学院環境情報研究院, 教授 (20449250)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2022: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2021: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2020: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords生態系制御 / 宿主-寄生者系 / 非線形時系列解析 / ツボカビ
Outline of Research at the Start

本研究では研究代表者が取得した世界的に見ても非常に貴重な「高頻度かつ網羅的な生物群集時系列データ」と「先進的な非線形時系列データの解析手法」を利用して、野外生態系での生物個体数の増減やその要因を予測し、その予測を野外における操作実験によって証明することを目的とする。野外の系として閉鎖淡水系 (例えば人工的に生成した小型水槽) を対象とし、その中の宿主-寄生者系の操作を試みる。具体的にはツボカビと藻類を対象にしてその個体数増減の制御を試みる。本研究を通して、複雑な野外生態系動態の予測と制御を可能にするための枠組み構築を行いたいと考えている。

Outline of Final Research Achievements

The purpose of this study is to demonstrate a framework for predicting and controlling complex aquatic ecological dynamics under field conditions. Initially, we analyzed existing time series data of ecological communities and identified chytrid and other interacting organisms under field conditions. Subsequently, we isolated and cultured the target chytrid species from artificial rice plots and conducted field manipulation experiments by introducing them into the rice plots. Environmental DNA was used to analyze changes in the ecological community before and after the manipulation experiment. The study revealed changes induced not only in the target chytrid but also in other organisms, suggesting that interspecific interactions drove the changes. Our findings demonstrate the potential for efficient management and control of aquatic ecosystems through causal analysis for predicting changes in the system in advance.

Academic Significance and Societal Importance of the Research Achievements

本研究では、野外生態系から得られた生物群集データと先進的なデータ解析手法が、野外生態系のような複雑な系の将来予測や制御に資する可能性を提示した。学術的には「野外生態系の予測や制御をどのように高精度化するか」という問いに「網羅的モニタリングとデータ解析の融合」という一つの答えを提示した。また、社会的には「水域生態系において有害な生物(例. アオコ)や有益な生物(例. 水産重要種)の将来変動を予測や制御を行う」ための基礎的枠組みを提示したという点で大きな意義がある。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (44 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (5 results) Journal Article (18 results) (of which Int'l Joint Research: 10 results,  Peer Reviewed: 16 results,  Open Access: 14 results) Presentation (20 results) (of which Int'l Joint Research: 4 results,  Invited: 12 results) Book (1 results)

  • [Int'l Joint Research] Institut de Ciencies del Mar(スペイン)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] IGB-Berlin(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Technical University of Munich(ドイツ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Netherlands Institute of Ecology(オランダ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Institut de Ciencies del Mar(スペイン)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Computational capability of ecological dynamics2023

    • Author(s)
      Ushio Masayuki、Watanabe Kazufumi、Fukuda Yasuhiro、Tokudome Yuji、Nakajima Kohei
    • Journal Title

      Royal Society Open Science

      Volume: 10 Issue: 4 Pages: 221614-221614

    • DOI

      10.1098/rsos.221614

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Temperature sensitivity of the interspecific interaction strength of coastal marine fish communities2023

    • Author(s)
      Masayuki Ushio, Testuya Sado, Takehiko Fukuchi, Sachia Sasano, Reiji Masuda, Yutaka Osada, Masaki Miya
    • Journal Title

      eLife

      Volume: 12

    • DOI

      10.7554/elife.85795

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] An ecological network approach for detecting and validating influential organisms for rice growth2023

    • Author(s)
      Ushio Masayuki、Saito Hiroki、Tojo Motoaki、Nagano Atsushi J
    • Journal Title

      eLife

      Volume: 12

    • DOI

      10.7554/elife.87202

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Novel parasitic chytrids infecting snow algae in an alpine snow ecosystem in Japan2023

    • Author(s)
      Nakanishi Hiroaki、Seto Kensuke、Takeuchi Nozomu、Kagami Maiko
    • Journal Title

      Frontiers in Microbiology

      Volume: 14 Pages: 1201230-1201230

    • DOI

      10.3389/fmicb.2023.1201230

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High prevalence of parasitic chytrids infection of glacier algae in cryoconite holes in Alaska2023

    • Author(s)
      Kobayashi Kino、Takeuchi Nozomu、Kagami Maiko
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 3973-3973

    • DOI

      10.1038/s41598-023-30721-w

    • 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] An efficient early‐pooling protocol for environmental <scp>DNA</scp> metabarcoding2022

    • Author(s)
      Ushio Masayuki、Furukawa Saori、Murakami Hiroaki、Masuda Reiji、Nagano Atsushi J.
    • Journal Title

      Environmental DNA

      Volume: 4 Issue: 6 Pages: 1212-1228

    • DOI

      10.1002/edn3.337

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [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] 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] Aphelidium parallelum sp. nov., a new aphelid parasitic on selenastracean green algae2022

    • Author(s)
      Kensuke Seto, Takashi Nakada, Yuuhiko Tanabe, Masaki Yoshida, Maiko Kagami
    • Journal Title

      Mycologia

      Volume: - Issue: 3 Pages: 544-555

    • DOI

      10.1080/00275514.2022.2039487

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interaction capacity as a potential driver of community diversity2022

    • Author(s)
      Ushio Masayuki
    • Journal Title

      Proceedings of the Royal Society B: Biological Sciences

      Volume: 289 Issue: 1969 Pages: 20212690-20212690

    • DOI

      10.1098/rspb.2021.2690

    • NAID

      120007192873

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] An efficient early-pooling protocol for environmental DNA metabarcoding2022

    • Author(s)
      Ushio Masayuki、Furukawa Saori、Murakami Hiroaki、Masuda Reiji、Nagano Atsushi J.
    • Journal Title

      bioRxiv

      Volume: 2022.02.15.480497 Pages: 1-19

    • DOI

      10.1101/2022.02.15.480497

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Computational capability of ecological dynamics2021

    • Author(s)
      Ushio Masayuki、Watanabe Kazufumi、Fukuda Yasuhiro、Tokudome Yuji、Nakajima Kohei
    • Journal Title

      bioRxiv

      Volume: 2021.09.15.460556 Pages: 1-22

    • DOI

      10.1101/2021.09.15.460556

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Intercomparison of Two Fluorescent Dyes to Visualize Parasitic Fungi (Chytridiomycota) on Phytoplankton2021

    • Author(s)
      Klawonn Isabell、Dunker Susanne、Kagami Maiko、Grossart Hans-Peter、Van den Wyngaert Silke
    • Journal Title

      Microbial Ecology

      Volume: - Issue: 1 Pages: 1-15

    • DOI

      10.1007/s00248-021-01893-7

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Single dominant diatom can host diverse parasitic fungi with different degree of host specificity2021

    • Author(s)
      Kagami, M., Seto, K., Nozaki, D., Nakamura, T., Wakana, H., & Wurzbacher, C.
    • Journal Title

      Limnology and Oceanography

      Volume: - Issue: 3 Pages: 667-677

    • DOI

      10.1002/lno.11631

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Parasitoid chytridiomycete Ericiomyces syringoforeus gen. et sp. nov. has unique cellular structures to infect the host2021

    • Author(s)
      Karpov, S. A., Vishnyakov, A. E., Rene, A. R., Seto, K., Alacid, E., Paloheimo, A., Kagami, M., Kremp, A. & Garces, E.
    • Journal Title

      Mycological Progress

      Volume: 20 Issue: 2 Pages: 95-109

    • DOI

      10.1007/s11557-020-01652-x

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Trophic position, elemental ratios and nitrogen transfer in a planktonic host-parasite-consumer food chain including a fungal parasite.2020

    • Author(s)
      Virginia Sanchez Barranco, Marcel TJ Van der Meer, Maiko Kagami, Silke Van den Wyngaert, Dedmer B Van de Waal, Ellen Van Donk, Alena S Gsel
    • Journal Title

      Oecologia

      Volume: 194 Issue: 4 Pages: 541-554

    • DOI

      10.1007/s00442-020-04721-w

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Morphology, ultrastructure, and molecular phylogeny of Aphelidium collabens sp. nov. (Aphelidia), a parasitoid of a green alga Coccomyxa sp.2020

    • Author(s)
      Kensuke Seto, Toshihiro Matsuzawa, Hitoshi Kuno, Maiko Kagami
    • Journal Title

      Protist

      Volume: 171 Issue: 3 Pages: 125728-125728

    • DOI

      10.1016/j.protis.2020.125728

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Temperature sensitivity of the interspecific interaction strength of coastal marine fish communities2024

    • Author(s)
      Masayuki Ushio、Testuya Sado、Takehiko Fukuchi、Sachia Sasano、Reiji Masuda、Yutaka Osada、Masaki Miya
    • Organizer
      第71回日本生態学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 相模湾における菌類の鉛直分布、季節変動:珪藻との宿主―寄生者関係2024

    • Author(s)
      田原将初、瀬戸健介、下出信次、髙山佳樹、鏡味麻衣子
    • Organizer
      第71回日本生態学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Temperature sensitivity of the interspecific interaction strength of coastal marine fish communities2023

    • Author(s)
      Masayuki Ushio、Testuya Sado、Takehiko Fukuchi、Sachia Sasano、Reiji Masuda、Yutaka Osada、Masaki Miya
    • Organizer
      The eDNA Society International Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 琵琶湖から広がる泳ぐカビの世界:ツボカビの謎に迫る2023

    • Author(s)
      鏡味麻衣子
    • Organizer
      第22回生態学琵琶湖賞授賞式・受賞記念公演
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 相模湾の珪藻ブルーム終息の鍵は寄生性ツボカビか2023

    • Author(s)
      田原将初、瀬戸健介、下出信次、髙山佳樹、鏡味麻衣子
    • Organizer
      2023年日本海洋学会秋季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 諏訪湖における湖面カメラを用いたアオコ・花粉モニタリング手法の検討2023

    • Author(s)
      田中駿、宮原裕一、小熊宏之、鏡味麻衣子
    • Organizer
      第87回日本陸水学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 泳ぐカビの世界:ツボカビの謎に迫る2023

    • Author(s)
      鏡味麻衣子
    • Organizer
      明治大学科学技術研究所 公開講演会「パラサイト;生態系の舞台裏」
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Biodiversity monitoring, time series analysis, and the sustainability of ecosystem and society2022

    • Author(s)
      潮雅之
    • Organizer
      2022年白眉プロジェクト年次報告会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Environmental DNA and statistical modeling enable monitoring and forecasting of complex aquatic ecosystem dynamics2022

    • Author(s)
      Masayuki Ushio
    • Organizer
      2022 Hong Kong Inter-University Postgraduate Symposium in Life Science
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 生態系の情報処理能力の定量化とその利用に向けた挑戦2022

    • Author(s)
      潮雅之
    • Organizer
      統数研統計思考院ワークショップ「数学を用いる生物学」
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 環境DNAモニタリング技術の開発と応用: サンプリング・ラボ実験から配列解析・統計解析まで2022

    • Author(s)
      潮雅之
    • Organizer
      定量生物学の会年会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [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
  • [Presentation] Disentangling the relative importance of water quality and spatial factors on aquatic fungal assemblages across 50 reservoirs2022

    • Author(s)
      Maiko Kagami、Manabu Mochizuki、Shunsuke Matsuoka、Kensuke Seto、Hideyuki Doi、Jotaro Urabe
    • Organizer
      SIL (International Society of Limnology)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 琵琶湖におけるMicrasteriasおよびStaurastrumの鉛直分布とツボカビとの関係2022

    • Author(s)
      橋爪達郎、伴修平、大塚泰介、瀬戸健介、三木健、鏡味麻衣子
    • Organizer
      第86回日本陸水学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] テトラヒメナ個体群が持つ情報処理能力の定量化とその利用2022

    • Author(s)
      潮雅之
    • Organizer
      第69回日本生態学会大会
    • Related Report
      2021 Annual Research Report
    • 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] Ecological Reservoir Computing: 微生物による近未来予測2021

    • Author(s)
      潮雅之
    • Organizer
      京都大学生態学研究センター共同利用ワークショップ
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 環境DNAメタバーコーディングのライブラリ調整迅速化・省力化に向けて2021

    • Author(s)
      潮雅之
    • Organizer
      第4回 山口大学・環境DNA研究センターシンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] みんなのジュニア生態学講座 「見えると楽しい!目に見えない水中の微生物」2021

    • Author(s)
      鏡味麻衣子
    • Organizer
      日本生態学会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 生物群集ネットワークの多様性と動態を説明する相互作用容量仮説2020

    • Author(s)
      潮雅之
    • Organizer
      ネットワーク科学セミナー2020
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Book] 植物プランクトン研究法(生態学フィールド調査法シリーズ)2021

    • Author(s)
      鏡味麻衣子
    • Total Pages
      190
    • Publisher
      共立出版
    • ISBN
      9784320057593
    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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