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海洋酸性化に対する生物群集の応答評価:直接効果と間接効果の統合理解

Research Project

Project/Area Number 18H02219
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 39060:Conservation of biological resources-related
Research InstitutionTokyo University of Marine Science and Technology (2020-2021)
University of Tsukuba (2018-2019)

Principal Investigator

今 孝悦  東京海洋大学, 学術研究院, 准教授 (40626868)

Co-Investigator(Kenkyū-buntansha) AGOSTINI SYLVAIN  筑波大学, 生命環境系, 助教 (20700107)
和田 茂樹  筑波大学, 生命環境系, 助教 (60512720)
BENJAMIN HARVEY  筑波大学, 生命環境系, 助教 (70785542)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2021: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2020: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Keywords海洋酸性化 / 二酸化炭素 / CO2シープ / 群集 / 間接効果 / 生物群集 / 直接効果
Outline of Annual Research Achievements

海洋酸性化は、資源生物を含む様々な種の成育を阻害し、生残率を低下させる深刻な環境問題である。本研究では、伊豆諸島・式根島に存在するCO2シープ(海底からCO2が噴き出し、天然の生態系全体が既に酸性化している海域)を用いて、海洋酸性化に対する生物群集の応答を評価することを目的としている。
本年度は、岩礁潮間帯において重要な生態的地位を占めるカサガイ類を対象に、海洋酸性化の間接効果を検討した。前年度までの調査で、カサガイ群集の種組成は、酸性化海域と通常海域で明瞭に異なり、ウノアシ個体数は酸性化海域で有意に減少する一方で、カラマツガイには有意差が認められず、両海域で高密度に保たれることが判明している。カサガイ類の餌となる藻類は、一般に海洋酸性化による正の効果を受けるため、カサガイ類の餌量の増加が予測される。そこで藻類の多寡を介したカサガイ群集の種組成変化を検証したところ、酸性化海域と通常海域間で藻類量に有意差が認められず、餌資源による間接効果は検出されなかった。他方、カサガイ類は、岩盤表面を這って移動する際に、そこに生息する固着生物を剥ぎ取りながら移動することで、他種に対して強力な排除効果を示す(ブルドーザー効果)。カサガイ類によるブルドーザー効果を検証したところ、酸性化海域ではブルドーザー効果の顕著な低下が認められ、それはウノアシ個体数の減少に起因することが示唆された。したがって、海洋酸性化は、カサガイ類のブルドーザー効果を低下させ、それを介して間接的に他の固着生物群集に影響を及ぼすことが明らかとなった。

Research Progress Status

令和3年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和3年度が最終年度であるため、記入しない。

Report

(4 results)
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report

Research Products

(42 results)

All 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (5 results) Journal Article (19 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 18 results,  Open Access: 6 results) Presentation (12 results) (of which Int'l Joint Research: 4 results) Book (6 results)

  • [Int'l Joint Research] University of Plymouth(英国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of Plymouth(英国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Plymouth(英国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Keimyung Universit(韓国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Xiamen University/Nanjing University(中国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Decreased Diversity and Abundance of Marine Invertebrates at CO2 Seeps in Warm-Temperate Japan2022

    • Author(s)
      Hall-Spencer Jason M.、Belfiore Giuseppe、Tomatsuri Morihiko、Porzio Lucia、Harvey Ben P.、Agostini Sylvain、Kon Koetsu
    • Journal Title

      Zoological Science

      Volume: 39 Issue: 1 Pages: 41-51

    • DOI

      10.2108/zs210061

    • NAID

      210000186889

    • ISSN
      0289-0003
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multiple effects of a typhoon strike and wastewater effluent on benthic macrofaunal communities in a mangrove estuary2022

    • Author(s)
      Kon Koetsu、Goto Ayumi、Tanita Iwao、Yamada Hideaki
    • Journal Title

      Hydrobiologia

      Volume: in press

    • DOI

      10.1007/s10750-022-04877-x

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ocean acidification locks algal communities in a species‐poor early successional stage2021

    • Author(s)
      Harvey Ben P.、Kon Koetsu、Agostini Sylvain、Wada Shigeki、Hall‐Spencer Jason M.
    • Journal Title

      Global Change Biology

      Volume: 27 Pages: 2174-2187

    • DOI

      10.1111/gcb.15455

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Food resource use by juveniles of the endangered sleeper Eleotris oxycephala in the Sagami River system, Japan2021

    • Author(s)
      Yamakawa Uchu、Kanou Kouki、Tsuda Yoshiaki、Kon Koetsu
    • Journal Title

      Ichthyological Research

      Volume: 68 Pages: 426-436

    • DOI

      10.1007/s10228-020-00795-x

    • NAID

      40022635050

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simplification, not “tropicalization”, of temperate marine ecosystems under ocean warming and acidification2021

    • Author(s)
      Agostini Sylvain、Harvey Ben P.、Milazzo Marco、Wada Shigeki、Kon Koetsu、Floc’h Nicolas、Komatsu Kosei、Kuroyama Mayumi、Hall‐Spencer Jason M.
    • Journal Title

      Global Change Biology

      Volume: 27 Pages: 4771-4784

    • DOI

      10.1111/gcb.15749

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Feedback mechanisms stabilise degraded turf algal systems at a CO2 seep site2021

    • Author(s)
      Harvey Ben P.、Allen Ro、Agostini Sylvain、Hoffmann Linn J.、Kon Koetsu、Summerfield Tina C.、Wada Shigeki、Hall-Spencer Jason M.
    • Journal Title

      Communications Biology

      Volume: 4 Pages: 219-219

    • DOI

      10.1038/s42003-021-01712-2

    • NAID

      120007185359

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Distributional characteristics of a seagrass bed of <i>Zostera japonica</i> confirmed in the intertidal zone around the Yaeyama Islands2021

    • Author(s)
      山田 秀秋, 谷田 巖, 渡辺 信, 南條楠土, 今 孝悦
    • Journal Title

      NIPPON SUISAN GAKKAISHI

      Volume: 87 Issue: 1 Pages: 43-45

    • DOI

      10.2331/suisan.20-00033

    • NAID

      130007975900

    • ISSN
      0021-5392, 1349-998X
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Responses of intertidal bacterial biofilm communities to increasing pCO22020

    • Author(s)
      Kerfahi D., Harvey B., Agostini S., Kon K., Huang R., Adams J. and Hall-Spencer J.
    • Journal Title

      Marine Biotechnology

      Volume: in press Pages: 727-738

    • DOI

      10.1007/s10126-020-09958-3

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Feeding habits of juvenile <i>Siganus fuscescens</i> in a subtropical seagrass meadow estimated by rearing experiments and dual stable isotope analysis2020

    • Author(s)
      山田 秀秋、今 孝悦、中本 健太、早川 淳、南條 楠土、河村 知彦
    • Journal Title

      Aquaculture Sci.

      Volume: 68 Issue: 2 Pages: 163-167

    • DOI

      10.11233/aquaculturesci.68.163

    • NAID

      130008054431

    • ISSN
      0371-4217, 2185-0194
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fish and macroinvertebrate fauna associated with floating or drifting surface water mangrove litter in a shallow coastal area in Trang, southern Thailand2020

    • Author(s)
      Horinouchi M., Kanou K., Kon K., Tongnunui P. and Sano M.
    • Journal Title

      Ichthyological Research

      Volume: 67 Pages: 177-184

    • DOI

      10.1007/s10228-019-00695-9

    • NAID

      40022132657

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 給餌実験と炭素・窒素安定同位体比分析から推定した亜熱帯海草藻場におけるアイゴ稚魚の摂食生態2020

    • Author(s)
      山田秀秋・今 孝悦・中本健太・早川 淳・南條 楠土・河村知彦
    • Journal Title

      水産増殖

      Volume: in press

    • NAID

      130008054431

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Diatoms Dominate and Alter Marine Food-Webs When CO2 Rises2019

    • Author(s)
      Ben P. Harvey, Sylvain Agostini, Koetsu Kon, Shigeki Wada and Jason M. Hall-Spencer
    • Journal Title

      Diversity

      Volume: 11 Pages: 242-242

    • DOI

      10.3390/d11120242

    • NAID

      120007132863

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impacts of ocean acidification on hermit crab communities through contrasting responses of Pagurus filholi (de Man, 1887) and Clibanarius virescens (Krauss, 1843)2019

    • Author(s)
      Tomatsuri M. and Kon K.
    • Journal Title

      Aquatic Ecology

      Volume: 53 Pages: 569-580

    • DOI

      10.1007/s10452-019-09709-0

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of microsatellite markers for the endangered sleeper <i>Eleotris oxycephala</i> (Perciformes: Eleotridae)2019

    • Author(s)
      Yamakawa Uchu、Kaneko Shingo、Imai Ryosuke、Faulks Leanne Kay、Kon Koetsu、Kyogoku Daisuke、Isagi Yuji、Tsuda Yoshiaki
    • Journal Title

      Genes & Genetic Systems

      Volume: 94 Issue: 5 Pages: 219-224

    • DOI

      10.1266/ggs.19-00007

    • NAID

      130007760324

    • ISSN
      1341-7568, 1880-5779
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Morphological development and occurrence patterns of larval and juvenile halfbeaks, Zenarchopterus spp., associated with mangrove flotsam in a shallow coastal area, Trang, southern Thailand2019

    • Author(s)
      Kanou K., Horinouchi M., Tongnunui P., Kon K. and Sano M.
    • Journal Title

      Biogeography

      Volume: -

    • NAID

      130007896249

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The influence of CO2 seeps to coastal environments of Shikine Island in Japan as indicated by geochemistry analyses of seafloor sediments2019

    • Author(s)
      Hirano H., Kon K., Yoshida M., Harvey B. and Setiamarga D
    • Journal Title

      International Journal of GEOMATE

      Volume: 16 Pages: 82-89

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ocean acidification drives community shifts towards simplified non-calcified habitats in a subtropical?temperate transition zone2018

    • Author(s)
      Agostini Sylvain、Harvey Ben P.、Wada Shigeki、Kon Koetsu、Milazzo Marco、Inaba Kazuo、Hall-Spencer Jason M.
    • Journal Title

      Scientific Reports

      Volume: 8 Pages: 11354-11354

    • DOI

      10.1038/s41598-018-29251-7

    • NAID

      120007133911

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Seasonal variations in leaf growth of Cymodocea serrulata in subtropical seagrass meadows2018

    • Author(s)
      Yamada H, Nakamoto K, Hayakawa J, Kawamura T, Kon K, Shimabukuro H, Fukuoka K
    • Journal Title

      Fisheries Science

      Volume: 84 Pages: 461-468

    • DOI

      10.1007/s12562-018-1183-8

    • NAID

      40021546879

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 茨城県利根川で記録された国内外来魚ドンコOdontobutis obscura.2018

    • Author(s)
      1.山川宇宙・今井亮介・今 孝悦・津田吉晃
    • Journal Title

      茨城生物

      Volume: 38 Pages: 2-5

    • Related Report
      2018 Annual Research Report
  • [Presentation] 海洋酸性化がクモハゼの行動と餌生物群集に与える影響2021

    • Author(s)
      貞家遼平・今孝悦・Sylvain Agostini
    • Organizer
      2021年日本プランクトン学会・ベントス学会合同大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 海洋酸性化がカサガイ類に与える影響2021

    • Author(s)
      矢野優貴・Sylvain Agostini・今孝悦
    • Organizer
      2021年日本プランクトン学会・ベントス学会合同大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Effects of ocean acidification on marine ecosystem services: use of natural analogues around volcanic CO2 vents.2020

    • Author(s)
      Wada S., Agostini S., Harvey B., Kon K. and Take M.
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] カサガイ群集に対する海洋酸性化の影響2020

    • Author(s)
      今孝悦・矢野優貴
    • Organizer
      令和2年度日本水産学会春季大会
    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
  • [Presentation] 亜熱帯海草藻場とマングローブ域に生息する魚類の餌資源利用2020

    • Author(s)
      南條楠土・清水雅史・冨永翔太・谷田巌・今孝悦・山田秀秋
    • Organizer
      令和2年度日本水産学会春季大会
    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
  • [Presentation] 石垣島名蔵湾の海草藻場に出現する魚類の食性2020

    • Author(s)
      清水雅史・南條楠土・谷田巌・今孝悦・山田秀秋
    • Organizer
      令和2年度日本水産学会春季大会
    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
  • [Presentation] マングローブ域の底生動物群集に対する富栄養化の影響2020

    • Author(s)
      後藤鮎美・山田秀秋・谷田巖・南條楠土・林崎健一・渡辺信・今孝悦
    • Organizer
      日本生態学会第67回全国大会
    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
  • [Presentation] Genetic structure and dispersal dynamics of the amphidromous sleeper Eleotris oxycephala along the Kuroshio Current2019

    • Author(s)
      Yamakawa U., Okano K., Imai R., Senou H., Kaneko S., Saito Y., Faulks L., Akasaka M., Kon K., Tsuda Y.
    • Organizer
      BES Annual Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マングローブ域の底生動物群集に対する複合的攪乱の影響2019

    • Author(s)
      今 孝悦・後藤鮎美・山田秀秋・谷田 巖・南條楠土
    • Organizer
      平成31年度日本水産学会春季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 岩礁潮間帯のヤドカリ群集に対する海洋酸性化の影響2019

    • Author(s)
      戸祭森彦・今 孝悦
    • Organizer
      第66回日本生態学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Geochemistry analyses of sea floor sediments from the coasts of Shikine island in Japan indicate an influence of CO2 seeps to coastal environments.2018

    • Author(s)
      Hirano H., Kon K., Yoshida M., Harvey B., Setiamarga D.
    • Organizer
      The 8th International Conference on Geotechnique, Construction Materials and Environment
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Local-scale genetic structure and kinship in the sleeper goby, Eleotris oxycephala, an amphidromous migratory fish, in the Sagami River System, Japan.2018

    • Author(s)
      4.Yamakawa U., Imai R., Tsunamoto Y., Kon K., Suyama Y., Faulks L., Yoshiaki Tsuda Y.
    • Organizer
      The 8th East Asian Federation of Ecological Societies International Congress.
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Book] Marine Ecology: Sea Shelf to Deep Sea. In: Inaba K. and Hall-Spencer J. (eds), Japanese Marine Life -A Practical Training Guide in Marine Biology-2020

    • Author(s)
      Fujiwara Y. and Kon K.
    • Publisher
      Springer Singapore
    • ISBN
      9789811513251
    • Related Report
      2019 Annual Research Report
  • [Book] Experimental Design in Marine Ecology. In: Inaba K. and Hall-Spencer J. (eds), Japanese Marine Life -A Practical Training Guide in Marine Biology-2020

    • Author(s)
      Kon K., Yamashiro H., Horinouchi M. and Kawaida S.
    • Publisher
      Springer Singapore
    • ISBN
      9789811513251
    • Related Report
      2019 Annual Research Report
  • [Book] Survey Techniques in Marine Ecology. In: Inaba K. and Hall-Spencer J. (eds), Japanese Marine Life -A Practical Training Guide in Marine Biology-2020

    • Author(s)
      Harvey B., Kon K. and Agostini S.
    • Publisher
      Springer Singapore
    • ISBN
      9789811513251
    • Related Report
      2019 Annual Research Report
  • [Book] Marine Ecology: Intertidal/Littoral Zone. In: Inaba K. and Hall-Spencer J. (eds), Japanese Marine Life -A Practical Training Guide in Marine Biology-2020

    • Author(s)
      Kon K., Shimanaga M. and Horinouchi M.
    • Publisher
      Springer Singapore
    • ISBN
      9789811513251
    • Related Report
      2019 Annual Research Report
  • [Book] Distribution of Organisms on the Seashore. In: Inaba K. and Hall-Spencer J. (eds), Japanese Marine Life -A Practical Training Guide in Marine Biology-2020

    • Author(s)
      Kon K.
    • Publisher
      Springer Singapore
    • ISBN
      9789811513251
    • Related Report
      2019 Annual Research Report
  • [Book] Human Impact. In: Inaba K. and Hall-Spencer J. (eds), Japanese Marine Life -A Practical Training Guide in Marine Biology-2020

    • Author(s)
      Hall-Spencer J. and Kon K.
    • Publisher
      Springer Singapore
    • ISBN
      9789811513251
    • Related Report
      2019 Annual Research Report

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Published: 2018-04-23   Modified: 2022-12-28  

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