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両側回遊が創出する熱帯島嶼河川の種多様性とその起源

Research Project

Project/Area Number 18J01965
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Biodiversity/Systematics
Research InstitutionUniversity of the Ryukyus

Principal Investigator

福森 啓晶  琉球大学, 熱帯生物圏研究センター, 特別研究員(PD)

Project Period (FY) 2018-04-25 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords両側回遊 / 島嶼河川 / 種多様性 / 種分類 / 集団遺伝 / 幼生生態 / 幼生分散 / 腹足類
Outline of Annual Research Achievements

熱帯島嶼河川では,淡水域で生まれた幼生が海へ下り,数ヶ月かけ成長したのち,河口付近で着底して川を遡る両側回遊をおこなう動物が卓越し,高い種多様性を示す.この同生態系における種多様性の創出・維持には,島嶼河川に特徴的な頻繁な撹乱と両側回遊種の海洋幼生による河口への新規加入が繋がっている可能性がある.一方で,熱帯・亜熱帯域に生息する両側回遊性動物の種分類を含めた自然史に関する研究は少ない.本研究課題では,河川性アマオブネ科腹足類を対象に,その種多様性と各種の初期生態を含む生活史全体を把握するため,生態学・集団遺伝学・系統分類学的アプローチなどから研究を実施した.
最終年度である本年度は,これまでの分類学的結果に基づき,日本(南西諸島・小笠原諸島)・ミクロネシア・オーストラリアなどを中心に各地域等における両側回遊性アマオブネ類の種多様性の把握を進めた.また,新規に採集したサンプルについては,河川・流程における産出地点を記録し,各種の詳細な生態分布情報を検討した.また一部の種について,ミトコンドリア・核マーカーによる集団遺伝学的解析をおこなった.形態・分子情報に基づく詳細な解析の結果,各国・各地域で初記録となる種が多数確認され,多くの地域で種多様性がこれまで過小評価されてきたことが明らかとなった.インド・西太平洋域では種多様性の中心地域であるコーラルトライアングル周辺から緯度・経度的に離れるほど,種数が減る傾向が確認された.一方, 海洋島を含む各地域において固有種の割合は低く, 多くの種において数百から数千キロ離れた地点間においても地理的な遺伝構造は確認されなかった.また,飼育実験により,各種幼生の生態情報を集積した.各地史年代の多様性を評価するため,過去の化石記録を精査し,各分類群の出現時期について検討した.

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (27 results)

All 2020 2019 2018 Other

All Int'l Joint Research (4 results) Journal Article (11 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 11 results,  Open Access: 3 results) Presentation (11 results) (of which Int'l Joint Research: 1 results) Book (1 results)

  • [Int'l Joint Research] The Australian Museum(オーストラリア)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Museum national d'Histoire naturelle(フランス)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Museum national d'Histoire naturelle(フランス)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Naturhistorisches Museum Wien(オーストリア)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Distributions and Variations of Two Estuarine Species of <i>Composetia</i> (Annelida: Nereididae) in the Ryukyu Islands, Southern Japan, with a New Record of <i>Composetia tokashikiensis</i> from Thailand2020

    • Author(s)
      Sato M, Ebihara T, Satake K, Kojima S, Fukumori H
    • Journal Title

      Species Diversity

      Volume: 25 Issue: 1 Pages: 25-38

    • DOI

      10.12782/specdiv.25.25

    • NAID

      130007779031

    • ISSN
      1342-1670, 2189-7301
    • Year and Date
      2020-01-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The mitochondrial genome and phylogenetic position of a marine snail Nerita (Heminerita) japonica (Gastropoda: Neritimorpha: Neritidae)2020

    • Author(s)
      Fukumori Hiroaki、Itoh Hajime、Nakajima Nobuyoshi、Kano Yasunori
    • Journal Title

      Mitochondrial DNA Part B

      Volume: 5 Issue: 3 Pages: 3579-3581

    • DOI

      10.1080/23802359.2020.1829136

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deep-sea fishes from the Kurile-Kamchatka Trench collected by the R/V Sonne during the KuramBio II Expedition in 20162020

    • Author(s)
      Shinohara, G., Kojima, S., Fukumori, H.
    • Journal Title

      Progress in Oceanography

      Volume: 183 Pages: 102275-102275

    • DOI

      10.1016/j.pocean.2020.102275

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The mitochondrial genome of the gold-ringed cowry Monetaria annulus (Mollusca: Gastropoda: Cypraeidae) determined by whole-genome sequencing2019

    • Author(s)
      Fukumori, H., Itoh, H., Irie, T.
    • Journal Title

      Mitochondrial DNA Part B: Resources

      Volume: 4 Issue: 2 Pages: 2305-2307

    • DOI

      10.1080/23802359.2019.1627946

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deepest known gastropod fauna: Species composition and distribution in the Kuril-Kamchatka Trench2019

    • Author(s)
      Fukumori Hiroaki、Takano Tsuyoshi、Hasegawa Kazunori、Kano Yasunori
    • Journal Title

      Progress in Oceanography

      Volume: 178 Pages: 102176-102176

    • DOI

      10.1016/j.pocean.2019.102176

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Amended generic classification of the marine gastropod family Phenacolepadidae: transitions from snails to limpets and shallow-water to deep-sea hydrothermal vents and cold seeps2019

    • Author(s)
      Hiroaki Fukumori, Takuya Yahagi, Anders Waren & Yasunori Kano
    • Journal Title

      Zoological Journal of the Linnean Society

      Volume: 185 Issue: 3 Pages: 636-655

    • DOI

      10.1093/zoolinnean/zly078

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] First insights into macrofaunal composition from the SokhoBio expedition (Sea of Okhotsk, Bussol Strait and northern slope of the Kuril-Kamchatka Trench)2018

    • Author(s)
      Brandt, A., Alalykina, I., Fukumori, H., Golovan, O., Kniesz, K., Lavrenteva, A., Lorz, A.-N., Malyutina, M., Philipps-Bussau, K., Stransky, B.
    • Journal Title

      Deep Sea Research Part II: Topical Studies in Oceanography

      Volume: 154 Pages: 106-120

    • DOI

      10.1016/j.dsr2.2018.05.022

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Abyssal gastropods in the Sea of Okhotsk (Vetigastropoda and Caenogastropoda)2018

    • Author(s)
      Fukumori Hiroaki、Hasegawa Kazunori、Kano Yasunori
    • Journal Title

      Deep Sea Research Part II: Topical Studies in Oceanography

      Volume: 印刷中 Pages: 187-196

    • DOI

      10.1016/j.dsr2.2017.09.013

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Deep-sea gastropods of the family Ringiculidae (Gastropoda, Heterobranchia) from the Sea of Okhotsk, Kuril-Kamchatka Trench, and adjacent waters with the description of three new species2018

    • Author(s)
      Chaban Elena M.、Kano Yasunori、Fukumori Hiroaki、Chernyshev Alexei V.
    • Journal Title

      Deep-Sea Research Part II: Topical Studies in Oceanography

      Volume: 印刷中 Pages: 197-213

    • DOI

      10.1016/j.dsr2.2017.11.008

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Evolutionary gain of red blood cells in a commensal bivalve (Galeommatoidea) as an adaptation to a hypoxic shrimp burrow2018

    • Author(s)
      Ryutaro Goto, Hiroaki Fukumori, Yasunori Kano, Makoto Kato
    • Journal Title

      Biological Journal of the Linnean Society

      Volume: 125 Issue: 2 Pages: 368-376

    • DOI

      10.1093/biolinnean/bly104

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Population connectivity of hydrothermal-vent limpets along the northern Mid-Atlantic Ridge (Gastropoda: Neritimorpha: Phenacolepadidae)2018

    • Author(s)
      Yahagi Takuya、Fukumori Hiroaki、Waren Anders、Kano Yasunori
    • Journal Title

      Journal of the Marine Biological Association of the United Kingdom

      Volume: 印刷中 Issue: 1 Pages: 179-185

    • DOI

      10.1017/s0025315417001898

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] アマガイの系統地理:氷期-間氷期サイクルと黒潮の影響2020

    • Author(s)
      福森啓晶・伊藤 萌・狩野泰則
    • Organizer
      日本貝類学会令和2年度大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 千島・カムチャッカ海溝の貝類多様性:KuramBio II航海で採集された貝類から2019

    • Author(s)
      福森啓晶・長谷川和範・狩野泰則
    • Organizer
      日本貝類学会2019年度大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 深海ベントスの進化を探る:チヂワバイ属巻貝の自然史研究2019

    • Author(s)
      石山玄樹・高野剛史・福森啓晶・伊藤萌・長谷川和範・小島茂明・狩野泰則
    • Organizer
      日本貝類学会2019年度大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 地理的隔離か水深差か? チヂワバイ属巻貝から探る深海ベントスの多様化プロセス2019

    • Author(s)
      石山玄樹・高野剛史・福森啓晶・伊藤萌・長谷川和範・小島茂明・狩野泰則
    • Organizer
      2019年度日本ベントス学会・日本プランクトン学会合同大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] イボニシC型・P型は別種か? SNP解析による遺伝構造比較2019

    • Author(s)
      福森啓晶・伊藤萌・松尾歩・陶山佳久・小島茂明・狩野泰則
    • Organizer
      2019年度日本ベントス学会・日本プランクトン学会合同大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Deep-sea biogeography revisited with the densest sampling: a tale of the bathyal-abyssal snail genus Bathyancistrolepis (Gastropoda: Buccinidae)2019

    • Author(s)
      Ishiyama, G., Takano, T., Fukumori, H., Itoh, H., Hasegawa, K., Kojima, S., Kano, Y.
    • Organizer
      World Congress of Malacology 2019, California, USA
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 深海底生生物の多様化プロセス:チヂワバイ属巻貝における隔離要因2019

    • Author(s)
      石山玄樹・高野剛史・福森啓晶・伊藤萌・長谷川和範・小島茂明・狩野泰則
    • Organizer
      日本動物学会第90回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] P型・C型は別種か?SNPs解析で解き明かすイボニシ二型の謎2018

    • Author(s)
      福森啓晶・伊藤萌・松尾歩・陶山佳久・小島茂明・狩野泰則
    • Organizer
      日本貝類学会平成30年度大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 在来それとも移入? 邦産Deroceras属ナメクジの分類と分布2018

    • Author(s)
      狩野泰則・福森啓晶
    • Organizer
      日本貝類学会平成30年度大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 深海性ベントスの分布と種分化:チヂワバイ属巻貝の例から2018

    • Author(s)
      石山玄樹・高野剛史・福森啓晶・伊藤萌・小島茂明・狩野泰則
    • Organizer
      日本貝類学会平成30年度大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 深海性巻貝チヂワバイ類の水平・垂直分布と多様化プロセス2018

    • Author(s)
      石山玄樹・高野剛史・福森啓晶・伊藤萌・小島茂明・狩野泰則
    • Organizer
      2018年度日本ベントス学会・日本プランクトン学会合同大会
    • Related Report
      2018 Annual Research Report
  • [Book] Neritidae Rafinesque, 1815. In: Freshwater Mollusks of the World: A Distribution Atlas (C. Lydeard & K.S. Cummings, eds.)2019

    • Author(s)
      Kano, Y., Fukumori, H.
    • Total Pages
      4
    • Publisher
      Johns Hopkins University Press, Baltimore, Maryland
    • ISBN
      9781421427317
    • Related Report
      2019 Annual Research Report

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Published: 2018-05-01   Modified: 2024-03-26  

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