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Inventory of shallow coastal infaunal and cryptic decapod crustaceans: Development of faunal monitoring method using eDNA metabarcoding

Research Project

Project/Area Number 16K07494
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biodiversity/Systematics
Research InstitutionNatural History Museum and Institute, Chiba

Principal Investigator

Komai Tomoyuki  千葉県立中央博物館, その他部局等, 研究員(移行) (20260242)

Co-Investigator(Kenkyū-buntansha) 宮 正樹  千葉県立中央博物館, その他部局等, 研究員(移行) (30250137)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords環境DNA / 十脚目甲殻類 / 分類 / プライマー / 16S rRNA / メタバーコーディング / 十脚甲殻類 / 生物相 / モニタリング / プライマー設計 / 新種 / 分類学的再検討 / 種多様性 / 分類学
Outline of Final Research Achievements

In order to document local fauna, field investigation and subsequent identification process have been necessary. In particular, for aquatic fauna, various sampling methods, for example, SCUBA diving in sublittoral waters, or various kinds of sampling gears (dredges, trawls, tangle nets, gill nets), have been yielded generally. Furthermore, identification process requires deep experience and knowledge on various taxonomic groups by specialists. In this project, a protocol for environmental DNA (eDNA) metabarcoding for decapod Crustacea has been developed. A new set of PCR primers for this purpose (MiDeca) was successfully developed. eDNA metabarcoding using the set of primers successfully detected multiple species from natural seawaters in volume of 2 little. As with standard DNA barcoding, significantly more taxonomic work, including building of verified reference sequence databases, is necessary to optimise the effectiveness of eDNA approaches.

Academic Significance and Societal Importance of the Research Achievements

今回開発した技術では、1回の分析で1,000サンプル以上(1,000箇所以上の水)のデータを得ることが可能であり、ある場所にどんなエビ・カニ類がいるのか調べることが大幅に簡略化されることが期待される。さらに、深海や未踏の地など生物相が明らかになっていない水域で調査を行えば、未知の種類を検出する可能性が高い。あるいは、これまでに知られていた種類でも新しい生息地を発見することが可能になると考えられる。環境アセスメントや外来種のモニタリングなど、今後幅広く応用されることが期待される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (12 results)

All 2019 2018 2017

All Journal Article (12 results) (of which Peer Reviewed: 12 results,  Open Access: 2 results)

  • [Journal Article] Development of a new set of PCR primers for eDNA metabarcoding from decapod crustaceans2019

    • Author(s)
      Komai, T., R.O. Goto, T. Sado & M. Miya
    • Journal Title

      Metabarcoding and Metagenomics

      Volume: 3 Pages: 1-19

    • DOI

      10.3897/mbmg.3.33835

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A new genus for “Neocallichirus” grandis Karasawa & Goda, 1996, a ghost shrimp species (Decapoda: Axiidea: Callianassidae) heretofore known only by fossil materials2019

    • Author(s)
      Komai, T., H. Yokooka, Y. Henmi & G. Itani
    • Journal Title

      Zootaxa

      Volume: 4604 Issue: 3 Pages: 461-481

    • DOI

      10.11646/zootaxa.4604.3.4

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Redescription and new records of a poorly known leucosiid crab, Pseudophilyra punctulata Chen & Ng, 2003, and description of a new species of Pseudophilyra from Japan (Crustacea: Decapoda: Brachyura)2019

    • Author(s)
      Komai, T., M. Shimetsugu & P.K.L. Ng
    • Journal Title

      Zootaxa

      Volume: 4550 Issue: 2 Pages: 251-267

    • DOI

      10.11646/zootaxa.4550.2.6

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three new species of the pandalid shrimp genus Pandalopsis Spence Bate, 1888 (Crustacea: Decapoda: Caridea) from the southwestern Sea of Okhotsk, with supplemental note on P. glabra Kobjakova, 19362019

    • Author(s)
      Komai, T. & M. Hibino
    • Journal Title

      Zootaxa

      Volume: 4545 Issue: 1 Pages: 1-31

    • DOI

      10.11646/zootaxa.4545.1.1

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A new genus and new species assigned to Macrophthalmidae (Decapoda: Brachyura: Thoracotremata) from the Ryukyu Islands, Japan2018

    • Author(s)
      Komai, T. & Y. Fujita
    • Journal Title

      Zootaxa

      Volume: 4531 Issue: 1 Pages: 109-116

    • DOI

      10.11646/zootaxa.4531.1.5

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A new species of the ghost shrimp genus Neocallichirus Sakai, 1988 from Iran, and new record of N. manningi Kazmi & Kazmi, 1992 (Decapoda: Axiidea: Callianassidae)2018

    • Author(s)
      Sepahvand, V., T. Komai, F. Montazi & S. Shahabi
    • Journal Title

      Zootaxa

      Volume: 4527 Issue: 2 Pages: 239-254

    • DOI

      10.11646/zootaxa.4527.2.5

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A new deep-sea species of the snapping shrimp genus Alpheus Fabricius, 1798 (Decapoda: Caridea: Alpheidae) from Kagoshima Bay, Japan2018

    • Author(s)
      Komai, T. & J. Ohtomi
    • Journal Title

      Zootaxa

      Volume: 4434 Issue: 1 Pages: 99-110

    • DOI

      10.11646/zootaxa.4434.1.6

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Records of the callianassid ghost shrimp Lepidophthalmus tridentatus (von Martens, 1869) (Crustacea: Decapoda: Axiidea: Callianassidae) from the Ryukyu Islands, Japan2018

    • Author(s)
      Komai, T., M. Osawa, T. Maenosono, Y. Fujita & T. Naruse
    • Journal Title

      Fauna Ryukyuana

      Volume: 42 Pages: 9-27

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A new species of the alpheid shrimp genus Thuylamea Nguyen, 2001 (Crustacea: Decapoda: Caridea) from the Yatsushiro Sea, Kyushu, Japan2018

    • Author(s)
      Komai, T.
    • Journal Title

      Zootaxa

      Volume: 4378 Issue: 3

    • DOI

      10.11646/zootaxa.4378.3.7

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] A new genus and new species of alpheid shrimp from marine cave of the Ryukyu Islands, Japan, with additional record of Salmoneus antricola Komai, Yamada & Yunokawa, 2015 (Crustacea: Decapoda: Caridea).2018

    • Author(s)
      Komai, T. & Fujita, Y.
    • Journal Title

      Zootaxa

      Volume: 4369 Issue: 4 Pages: 575-586

    • DOI

      10.11646/zootaxa.4369.4.7

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Gebiacantha sagamiensis, a new species of upogebiid shrimp (Crustacea: Decapoda: Gebiidea) from Sagami Bay, central Japan2017

    • Author(s)
      Komai, T.
    • Journal Title

      Zootaxa

      Volume: 4263 Issue: 3 Pages: 578-586

    • DOI

      10.11646/zootaxa.4263.3.9

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Gilvossius chichijimaensis Sakai, 2015 (Crustacea: Decapoda: Axiidea: Callianassidae), a junior subjective synonym of Paratrypaea bouvieri (Nobili, 1904)2017

    • Author(s)
      Komai, T.
    • Journal Title

      Zootaxa

      Volume: 4291 Issue: 2 Pages: 391-395

    • DOI

      10.11646/zootaxa.4291.2.11

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed

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Published: 2016-04-21   Modified: 2020-03-30  

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