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Evolutionary biological study on deep-sea hydrothermal barnacles as 'the living fossil'

Research Project

Project/Area Number 06404001
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Stratigraphy/Paleontology
Research InstitutionChiba University

Principal Investigator

YAMAGUCHI Toshiyuki  Chiba University, Earth Sciences, Assoc.Professor, 理学部, 助教授 (10101106)

Project Period (FY) 1994 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥32,100,000 (Direct Cost: ¥32,100,000)
Fiscal Year 1996: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1995: ¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 1994: ¥27,100,000 (Direct Cost: ¥27,100,000)
KeywordsLiving fossil / barnacles / deep-sea hydrothermal vents / nucleotide sequences / DNA / phylogeny / 原始性
Research Abstract

(1) A few years ago the most primitive living barnacles (so-called'living fossils') belonging to three major taxa within subclass Cirripedia were found as part of the extraordinary fauna associated with abyssal hydrothermal vents. They are Neolepas zevina Newman, 1979 (order Scalpellomorpha), Neoverruca brachylepadoformis Newman & Hessler, 1989 (order Verrucomorpha), and Eochionelasmus ohtai Yamaguchi, 1990 (order Balanomorpha) (Newman 1979, Newman & Hessler 1989, Yamaguchi & Newman 1990). The research reported here concerns additional forms of primitive barnacles from such environments. Neobrachylepas relica Newman and Yamaguchi, 1995, the first known living representative of the third order of sessile barnacles, Brachylepadomorpha, was found at a vent in the Lau Basin, southwest Pacific. A new species of Eochionelasmus was found off Easter Island in the east Pacific (Yamaguchi & Newman in press). Three geographically separated populations of Eochionelasmus ohtai from North Fiji, Lau … More and Manus Basins were compared in term of the arrangement of their shells' basal imbricating plates. The shell arrangement of the Manus population is different with that of the other two ; therefore, two subspecies of Eochionelasmus ohtai were recognized and described (Yamaguchi &Newman submitted).
(2) Two vent barnacles, Eochionelasmus and Neoverruca, were recovered from vents in the Manus and Mariana Back-Arc Basins, respectively. The phylogenetic relationship between them was examined using parts of the nucleotide sequences of the 16S mitochondrial ribosomal RNA gene. The non-vent barnacle Capitulum mitella was representing the more pimitive scalpellomorphan cirripedes. The results implied that the Verrucomorpha (Neoverruca) were derived first from the Scalpellomorpha, and the Balanomorpha (Eochionelasmus) were derived from the Verrucomorpha. The relationship coincides with a phylogeny that had previously been inferred from the fossil record, adult morphology, ontogeny of larval development, and nervous system.
(3) Yamaguchi & Newman (1990) considered Eochionelasmus to be more primitive than the generalized balanomorphan families Chthamalidae and Tetraclitidae, and to be the most primitive living balanomorphan barnacle. The inference has now been supported by a phylogenetic analysis using mitochondrial gene sequences (16S ribosomal RNA and COI) from 5 species of Chthamalidae and 7 species of Tetraclitidae. Also, the phylogenetic relationships among three species of Tetraclita (Tetraclitidae) has been described by Hasegawa (1996). Less

Report

(4 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] Newman,W.A.and T.Yamaguchi: "A new sessile barnacle (Cirripedia,Brachytlepadomorpha) from the Lau Back-Ace Basin,Tonga,first record of a living representative since the Miocene." Bull. Mus. natl. Hist.,Paris, 4 ser.17A(3-4). 221-243 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 金末姫,山口寿之: "イワフジツボおよびオオイワフジツボ(蔓脚亜網,完胸目,イワフジツボ科)の幼生と類縁関係." 付着生物研究. 12巻12号. 1-22 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 長谷川貴志・山口寿之・小島茂明・太田秀: "ミトコンドリアDNAを用いたクロフジツボ類の系統解析" Benthos Research. 51巻2号. 87-93 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Achituv,Y.and T.Yamaguchi: "Water pumping in the rabbit ear barnacle Conchoderma aurtum." Bull. Mar. Sci.(Accepted).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yamaguchi,T.and W.A.Newman: "Eochionelasmus paquensis sp. nov. (Cirripedia,Balanomorpha) from 17°25'S,north of Easter Island : First record of a hydrothermal barnacle from the East Pacific Rise." Jour. Crustacean Biol.(Accepted).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Newman, W.A.and T.Yamaguchi: "A new sessile barnacle (Cirripedia, Brachytlepadomorpha) from the Lau Back-Arc Basin, Tonga ; first record of a living representative since the Miocene." Bull.Mus.natl.Hist., Paris. 4 ser., 17A (3-4). 221-243 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Kim, M.-H.and T.Yamaguchi: "Larval development and phylogenetic relationship between Chthamalus challengeri and Euraphia pilsbryi Subclass Cirripedia, Suborder Balanomorpha, Family Chthamalidae)." Marine Fouling. 12 (12). 1-22 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Hasegawa, T., T.Yamaguchi, S.Kojima and S.Ohta: "Phylogenetic analysis among three species of intertidal barnacles of the Genus Tetraclita (Cirripedia ; Balanomorpha)" Benthos Research. 51 (2). 33-39 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Achituv, Y.and T.Yamaguchi: "Water pumping in the rabbit ear barnacle Conchoderma aurtum." Bull.Mar.Sci.(Accepted).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yamaguchi, T.and W.A.Newman: "Eochionelasmus paquensis sp.nov. (Cirripedia, Balanomorpha9 from 17゚25'S,north of Easter Island : First record of a hydrothermal barnacle from the East Pacific Rise." Jour.Crustacean Biol.(Accepted).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] NEWMAN,W.A.and T.YAMAGUCHI: "A new sessile bamacle (Cirripedia,Brachylepadomorpha) from the Lau Back-Arc Basin,Tonga ; first record of a living representative since the Miocene." Bull. Mus. natl. Hist. nat.,Paris,4 ser.,. 17A(3-4),. 221-243 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 金 末姫・山口寿之: "イワフジツボおよびオオイワフジツボ(蔓脚亜綱,完胸目,イワフジツボ科)の幼生発生と類縁関係." 付着生物研究. 12巻,2号. 1-22 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 長谷川貴志,山口寿之 小島茂明,太田秀: "ミトコンドリアDNAを用いたクロフジツボ類の系統解析." Benthos Research,. 51巻,2号. 87-93 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] ACHITUV,Y.and T.YAMAGUCHI: "Water Pumping in the Rabbit Ear Barnacle Conchoderma auritum." Bull.Mar.Sci.(受理). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] YAMAGUCHI,T.and W.A.NEWMAN: "Eochionelasmus paquensis sp.nov.(Cirripedia,Balanomorpha) from 17°25′S,north of Easter Island : First record of a hydrothermal sessile barnacle from the East Pacific Rise." Jour.Crustacean Biol.,. (受理). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 金 末姫・山口寿之: "イワフジツボおよびオオイワフジツボ(蔓脚,完胸目,イワフジツボ科)の幼生発生と類縁関係" 付着生物研究. 12. 1-22 (1996)

    • Related Report
      1995 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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