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Geographical variation in reproductive traits of coral reef invertebrates.

Research Project

Project/Area Number 01045029
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionUniversity-to-University Cooperative Research
Research InstitutionUniversity of the Ryukyus

Principal Investigator

YAMAZATO Kiyoshi  Professor, Dept. of Biology, University of the Ryukyus, 理学部, 教授 (80044973)

Co-Investigator(Kenkyū-buntansha) BIRKELAND Ch  グアム大学, 臨海実験所, 教授
RICHIMOND Ro  グアム大学, 臨海実験所, 助教授
SAKAI Kazuhiko  Assistant Professor, Marine Science Center, University of the Ryukyus, 熱帯海洋科学センター, 講師 (50153838)
HIDAKA Michio  Associate professor, Dept. of Biology, University of the Ryukyus, 理学部, 助教授 (00128498)
UEHARA Tsuyoshi  Professor, Dept. of Biology, University of the Ryukyus, 理学部, 教授 (20045016)
RICHMOND Robert H.  Associate Professor, Marine Laboratory, University of Guam
BIRKELAND Charles E.  Professor, Marine Laboratory, University of Guam
Project Period (FY) 1989 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥6,000,000 (Direct Cost: ¥6,000,000)
Fiscal Year 1991: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1990: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1989: ¥2,000,000 (Direct Cost: ¥2,000,000)
KeywordsInvertebrate reproduction / Geographical variation / Fertilization / Corals / Sea urchins / Speciation / Nematocysts / Coral community
Research Abstract

The sexual reproduction of the coral Stylophora pistillata was studied in Okinawa. The coral released planulae synchronously one week after the full moon in April, May and June. The development of testes and ovaries began in January and in October, respectively. Planulae appeared in the coelenteron of polyps one month before being released. The planulae kept growing for one month in the coelenteron of the polyps. The reproductive pattern of Okinawan S. Distillate populations will be compared with that of Guam populations. (Yamazaio)
The four species of Indo-Pacific Echinometra were classified tentatively as A, B, C and D (Uehara, 1991). The failure of cross-fertilization and the differences in the gamete morphology show that Okinawan and Hawaiian species D are distinct species. Degree of gamete incompatibility between Okinawan D and Okinawan B was different from that between Okinawan D and Guam B. This suggests that Okinawan B and Guam B are in the process of speciation at fertilization … More level. Significant differences in the morphology of Echinothrix calamaris were found between Guam and Okinawan populations. A new species belonging to the genus Echinothrix was found in Guam. (Uehara)
The size and shape of a major type of nematocysts in tentacles were compared between two morphs of Galaxea fascicularis and between Stylophora pistillata and S. mordax. The results show that nematocyst morphology correlates with skeletal characters and that the two morphs of G. fascicularis and S. pistillata and S. mordax are, respectively, distinct species. (Hidaka)
A marked decrease in fertilization rate of coral eggs was observed when terrigenous run-off was present. There was a 95% reduction in planulae formation for Acropora eggs in waters collected from the reef near the Sesoko Island Bridge. The water was found to have 28.5 % salinity with a lateritic soil content of 1.28 grams/liter. The factors affecting fertilization need to be examined to determine what is causing the reduction. (Richmond)
Field survey of coral community/population structure, and field experiment for assessing the effect of consumers on biomass accumulation were carried out using cages at two depths (3 and 5 m deep) of three stations each in Guam and Okinawa. Significant difference was found both in coral community/population structure and in biomass accumulation among the stations. Correlations among the recorded parameters are now being analyzed. (Sakai and Birkeland) Less

Report

(2 results)
  • 1991 Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (37 results)

All Other

All Publications (37 results)

  • [Publications] 上原 剛: "ナガウニの種分化" 遺伝. 44. 47-53 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Uehara,T.,H.Asakura,& Y.Arakaki: "Fertilization blockage and hybridization among species of the sea urchins." M.Hoshi & O.Yamashita(eds.)“Advances in Invertebrate Reproduction".Elsevier,Amsterdam. 5. 305-310 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Uehara,T.,M.Shingaki,K.Taira,Y.Arakaki & H.Nakatomi: "Chromosome studies in eleven Okinawan species of sea urchins,with special reference to four species of IndoーPacific Echinometra." “Biology of Echinodermata",T.Yanagisawa.I.Yasumasu,C.Oguro,N.Suzuki and T.Motokawa(eds),A.A.Balkema,Netherlands. 119-129 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Arakaki,Y.& T.Uehara: "Physiological adaptations reproduction of four types of Echinometra mathaei(Blainville)" “Biology of Echinodermata",T.Yanagisawa,I.Yasumasu,C.Oguro,N.Suzuki and T.Motokawa(eds),A.A.Balkema,Netherlands. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Hidaka,M.: "Growth rate and surface structure of skeletons of the coral Galaxea fascicularis kept in darkness for various lengths of time." Proc.8th Int.Coral Reef Symp.(1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Hidaka,M.: "Ues of nematocyst morphology for taxonomy of some related species of scleractinian corals." Galaxea. 11. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 西平 守孝,酒井 一彦,横地 洋之: "西表崎山湾自然環境保全地域のサンゴ群集" 環境庁自然保護局.崎山湾自然環境保全地域調査報告書. 107-160 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Richmond,R.H.: "Relationships among reproductive mode,biogeographic distribution patterns and evolution in scleractinian corals." M.Hoshi & O.Yamashita(eds.)“Advances in Invertebrate Reproduction."Elsevier,Amsterdam. 5. 317-322 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Richmond,R.H.& C.L.Hunter: "Reproductive and recruitment of corals:comparisons among the Caribbean,the Tropical Pacific,and the Red Sea." Marine Ecology Progress Series. 60. 185-203 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Birkeland,C.E.: "The influence of echinoderms on coralーreef communities." Echinoderm Studies. 3. 1-79 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Uehara,T.: "Geographical variation of the gamete incompartibility between populations of IndoーPacific Echinometra species found in Okinawa,Guam and Hawaii." Zoological Science. 8. 1195 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Yamazato,K.,M.Sai & M.Nakamura: "Comparative studies on the reproductive mode among three genera of corals belonging to the family Pocilloporidae living in different geographical areas." Zoological Science. 8. 1188 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Yamazato,K.,M.Sai & Y.Nakano: "Sexual reproduction of Okinawan corals,Stylophora Pidtillsta(Esper)and Seriatopora hystrix Dana." Proc.8th Int.Coral Reef Symp.(1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Glynn,P.W.,R.Imai,K.Sakai,Y.Nakano and K.Yamazato: "Differential survival of Okinawan(Ryukyu Islands,Japan)reef corals to high sea temperature and UV radiation." Proc.8th Int.Coral Reef Symp.(1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 山里 清: "サンゴの生物学" 東京大学出版会, 1-132 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Uehara, T.: "Speciation of Echinometra mathaei (Blainville)." Iden. 44. 47-53 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Uehara, T., H. Asakura & Y. Arakaki: "Fertilization blockage and hybridization among species of the sea urchins." M. Hoshi & O. Yamashita (eds.) "Advances in Invertebrate Reproduction". Elsevier, Amsterdam. 5. 305-310 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Uehara, T., M. Shingaki, K. Taira, Y. Arakaki, & H. Nakatomi: "Chromosome studies in eleven Okinawan species of sea urchins, with special reference to four species of Indo-Pacific Echinometra." "Biology of Echinodermata", T. Yanagisawa, I. Yasumasu, C. Oguro, N. Suzuki and T. Motokawa (eds), A. A. Balkema, Netherlands. 119-129 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Arakaki, Y. & T. Uehara: "Physiological adaptations and reproduction of four types of Echinometra mathaei (Blainville)." "Biology of Echinodermata", T. Yanagisawa, I. Yasumasu, C. Oguro, N. Suzuki and T. Motokawa (eds), A. A. Balkema, Netherlands. 109-118 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Hidaka, M.: "Use of nematocyst morphology for taxonomy of some related species of scleractinian corals." Galaxea. 11. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Hidaka, M.: "Growth rate and surface structure of skeletons of the coral Galaxea fascicularis kept in darkness for various lengths of time." Proc. 8th Int. Coral Reef Symp.(1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Nishihira, M., K. Sakai & H. Yokochi: "Coral community of Sakiyama conservation Area, Iriomote Island, Okinawa." Nature conservation Bureau, Environment Agency of Japan, Survey report of the Sakiyama Bay Nature Conservation Area, Okinawa, Japan.107-160 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Richmond, R. H.: "Relationships among reproductive mode, biogeographic distribution patterns and evolution in scleractinian corals." M. Hoshi & O. Yamashita (eds.) "Advances in Invertebrate Reproduction. " Elsevier, Amsterdam. 5. 317-322 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Richmond, R. H. & C. L. Hunter: "Reproductive and recruitment of corals : comparisons among the Caribbean, the Tropical Pacific, and the Red Sea." Marine Ecology Progress Series. 60. 185-203 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Birkeland, C. E.: "The influence of echinoderms on coral-reef communities." Echinoderm Studies. 3. 1-79 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Uehara, T.: "Geographical variation of the gamete incompartibility between populations of Indo-Pacific Echinometra species" Zoological Science. 8. 1195 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Yamazato, K., M. Sai & M. Nakamura: "Comparative studies on the reproductive mode among three genera of corals beloging to the family Pocilloporidae living in different geographical areas." Zoological Science. 8. 1188 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Yamazato, K., M. Sai & Y. Nakano: "Sezual reproduction of Okinawan corals, Stylophora pidtillsta (Esper) and Seriatopora hystrix Dana." Proc. 8th Int. Coral Reef Symp.1-132 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Glynn, P. W., R. Imai, K. Sakai, Y. Nakano and K. Yamazato: "Differential survival of Okinawan (Ryukyu Islands, Japan) reef corals to high sea temperature and UV radiation." (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Yamazato, K.: Tokyo University Press. Coral Biology (in Japanese), 1-132 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 上原 剛: "ナガウニの種分化" 遺伝. 44. 47-53 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Uehara,T.,H.Asakura,& Y.Arakaki: "Fertilization blockage and hybridization among species of the sea urchins." M.Hoshi & O.Yamashita(eds.) “Advances in Invertebrate Reproduction".Elsevier,Amsterdam. 5. 305-310 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Uehara,T.,M.Shigaki,K.Taira,Y.Arakaki,& H.Nakatomi: "Chromosome studies in eleven Okinawan species of sea urchins,with special reference to four species of IndoーPacific Echinometra." Proc.7th International Echinoderm Conference,Atami,Japan. 1990. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] Arakaki,Y.& T.Uehara: "Physiological adaptations and reproduction of four types of Echinometra mathaei (Blainville)" Proc.7th International Echinoderm Conference,Atami,Japan. 1990. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] Richimond,R.H.: "Relationships among reproductive mode,biogeographic distribution patterns and evolution in scleractinian corals." M.Hoshi & O.Yamashita (eds.) “Advances in Invertebrate Reproduction." Elsevier,Amsterdam. 5. 317-322 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Richimond,R.H.& C.L.Hunter: "Reproductive and recruitment of corals:comparisons among the Caribbean,the Tropical Pacific,and the Red Sea." Marine Ecology Progress Series. 60. 185-203 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 山里 清: "サンゴの生物学" 東京大学出版会, 1-132 (1991)

    • Related Report
      1990 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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