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2013 Fiscal Year Final Research Report

Photosymbiotic animals encrusting corals: dispersal, reproduction, and current status of their distribution

Research Project

  • PDF
Project/Area Number 23510296
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Resource conservation science
Research InstitutionUniversity of the Ryukyus

Principal Investigator

HIROSE Euichi  琉球大学, 理学部, 教授 (30241772)

Co-Investigator(Renkei-kenkyūsha) HIROSE Mamiko  お茶の水女子大学, 理学部, 特任講師 (10398307)
Project Period (FY) 2011 – 2013
Keywordsサンゴ礁 / 光共生 / ホヤ / 海綿 / 垂直伝播 / 外来種
Research Abstract

Diplosoma simile and Trididemnum cyclops are considered to be wide-spreading species based on the faunal surveys in the Ryukyus, Taiwan, Panama, and some oceanic islands in North Pacific (i.e., Minami Daito-jima, Bonin Islands, Hawai'i). Especially, D. simile has already spread in not only Indo-Pacific but also in Caribbean Panama. In the monthly monitoring of drifting seaweeds, colonies of T. cyclops were found on the Sargassum leaves, indicating that these species have a long-dispersal ability using drifting materials. These two species are the most possible candidates that expand the distribution range toward higher latitude following the increase of seawater temperature.
Larval spawning was confirmed by direct observation and histological and electron-microscopic studies in a cyanobacteriosponge Terpios hoshinota that encrusts scleractinian corals.
A new species of a colonial hydroid Zancrea sango was described. This species spread the colonies on a scleractinian coral colony.

  • Research Products

    (19 results)

All 2014 2013 2012 2011

All Journal Article (10 results) (of which Peer Reviewed: 9 results) Presentation (9 results)

  • [Journal Article] First record of a photosymbiotic ascidian Lissoclinum midui (Ascidiacea: Didemnidae) from Lyudao (Green Island), Taiwan2014

    • Author(s)
      Hirose E, Nozawa Y., Hirose M
    • Journal Title

      Marine Biodiversity Records

      Volume: 7 Pages: e42

    • Peer Reviewed
  • [Journal Article] Photosymbiotic ascidians (Ascidiacea: Didemnidae) from Minami-Daitojima Island2014

    • Author(s)
      Hirose E
    • Journal Title

      The Biological Magazine Okinawa

      Volume: 52 Pages: 31-38

    • Peer Reviewed
  • [Journal Article] Didemnid ascidians harboring cyanobacteria from Kumejima Island and Tonakijima Island, Ryukyu Archipelago, Japan2013

    • Author(s)
      Hirose E
    • Journal Title

      The Biological Magazine Okinawa

      Volume: 51 Pages: 41-49

    • Peer Reviewed
  • [Journal Article] Photosymbiotic ascidians from oceanic islands in the tropical Pacific as candidates of long-dispersal species: morphological and genetic identification of the species2013

    • Author(s)
      Hirose M, Hirose E
    • Journal Title

      Aquatic Invasions

      Volume: 8(3) Pages: 271-280

    • Peer Reviewed
  • [Journal Article] Pattern of stigma numbers as a taxonomic character in some didemnid ascidians (Aplousobranchia: Didemnidae)2013

    • Author(s)
      Nagaya K, Hirose E
    • Journal Title

      Zootaxa

      Volume: 3608(1) Pages: 87-93

  • [Journal Article] Coral-killing sponge, Terpios hoshinota, releases larvae harboring cyanobacterial symbionts: an implication of dispersal2012

    • Author(s)
      Wang J-T, Hirose E, Hsu G, Chen Y-Y, Meng P-J, Chen CA
    • Journal Title

      Zoological Studies

      Volume: 51(3) Pages: 314-320

    • Peer Reviewed
  • [Journal Article] A new species of Zanclea (Cnidaria: Hydrozoa) associated with scleractinian corals from Okinawa, Japan2012

    • Author(s)
      Hirose M, Hirose E
    • Journal Title

      Journal of Marine Biological Association of the United Kingdom

      Volume: 92(5) Pages: 877-884

    • Peer Reviewed
  • [Journal Article] First records of didemnid ascidians harboring Prochloron from Caribbean Panama: Genetic relationships between Caribbean and Pacific photosymbionts and host ascidians2012

    • Author(s)
      Hirose E, Turon X, Lopez-Legentil S, Erwin PM, Hirose M
    • Journal Title

      Systematics and Biodiversity

      Volume: 10(4) Pages: 435-445

    • Peer Reviewed
  • [Journal Article] Transmission of cyanobacterial symbionts during embryogenesis in the coral reef ascidians Trididemnum nubilum and T. clinides (Didemnidae, Ascidiacea, Chordata)2012

    • Author(s)
      Kojima A, Hirose E
    • Journal Title

      Biological Bulletin

      Volume: 222 Pages: 63-73

    • Peer Reviewed
  • [Journal Article] A new record of a photosymbiotic ascidian from Kenting, Taiwan with key to the photosymbiotic species of the genus Diplosoma recorded in the western Pacific2011

    • Author(s)
      Hirose E, Su S-W
    • Journal Title

      Collection and Research

      Volume: 24 Pages: 83-86

    • Peer Reviewed
  • [Presentation] Morphological approach to the life of the black sponge encrusting corals2013

    • Author(s)
      Hirose, E
    • Organizer
      International Lecture on Current Marine Biological Studies
    • Place of Presentation
      Bogor
    • Year and Date
      20131100
  • [Presentation] Phallusia nigra is not as widespread as reported - Tunicates in black disguises2013

    • Author(s)
      Vandepas LE, Rocha RM, Hirose E ,Oliveira LM, Lee SCS, Swalla BJ
    • Organizer
      The 7th International Tunicate Meeting
    • Place of Presentation
      Napoli
    • Year and Date
      20130700
  • [Presentation] カリブのプロクロロンと宿主ホヤ2012

    • Author(s)
      広瀬裕一・Turon X・Lopes-Legentil S・Erwin PM・広瀬慎美子
    • Organizer
      日本動物学会第83回大会
    • Place of Presentation
      大阪
    • Year and Date
      20120900
  • [Presentation] 「かたち」を提供すれば役に立ちますか?~海産無脊椎動物の形態学から~2012

    • Author(s)
      広瀬裕一
    • Organizer
      第14回バイオミメティクス研究会
    • Place of Presentation
      つくば
    • Year and Date
      20120300
  • [Presentation] Tiny, marine invertebrates newly described from the Ryukyus in 20112011

    • Author(s)
      Hirose E, Hirose M, Yoshida R
    • Organizer
      Okinawa Workshop 2011: Advances in Subtropical Island Studies
    • Place of Presentation
      Nishihara
    • Year and Date
      20111200
  • [Presentation] サンゴを被覆する藍藻共生性海綿 Terpios hoshinotaの有性生殖2011

    • Author(s)
      広瀬裕一、王志騰、許嘉閔
    • Organizer
      日本動物学会第82回大会
    • Place of Presentation
      旭川
    • Year and Date
      20110900
  • [Presentation] 沖縄のイシサンゴに棲むスズフリクラゲ属(ヒドロ虫綱)の1未記載種について2011

    • Author(s)
      広瀬慎美子、広瀬裕一
    • Organizer
      日本動物学会第82回大会
    • Place of Presentation
      旭川
    • Year and Date
      20110900
  • [Presentation] 藻類共生性ジデムニ科ホヤにおける鰓孔数の安定性について2011

    • Author(s)
      長屋和彦、広瀬裕一
    • Organizer
      日本動物学会第82回大会
    • Place of Presentation
      旭川
    • Year and Date
      20110900
  • [Presentation] Biogeography of photosymbiotic ascidians in subtropical Japan and Taiwan: potential indicator for global warming and potential invasive species in higher latitude2011

    • Author(s)
      Hirose E
    • Organizer
      The 6th International Tunicate Meeting
    • Place of Presentation
      Montreal
    • Year and Date
      20110700

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Published: 2015-07-16  

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