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CONTROL OF THYROID HORMONE SECRETION IN SALMONIDS

Research Project

Project/Area Number 62480022
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 動物形態・分類学
Research InstitutionThe University of Tokyo

Principal Investigator

HIRANO Tetsuya  OCEAN RES. INST., UNIV. TOKYO PROFESSOR, 海洋研究所, 教授 (70013571)

Co-Investigator(Kenkyū-buntansha) IWATA Munehico  OCEAN RES. INST., UNIV. TOKYO ASSIST. PROFESSOR, 海洋研究所大槌臨界センター, 助手 (20090475)
KAWAUCHI Hiroshi  SCH. FISH., KITASATO UNIV. PROFESSOR, 水産学部, 教授 (70050523)
小笠原 強  東京大学, 海洋研究所, 助手 (20167315)
Project Period (FY) 1987 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥6,000,000 (Direct Cost: ¥6,000,000)
Fiscal Year 1989: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1988: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1987: ¥3,000,000 (Direct Cost: ¥3,000,000)
KeywordsSalmon / Trout / Thyroid Gland / Thyroid Hormones / Thyroxine / Triiodothyronine / Migration / Early Development / ビワマス / ヒラメ / コルチソル / 甲状腺刺激ホルモン
Research Abstract

Thyroid hormones have been implicated in migration of salmonids, particularly in their downstream migration associated with smoltification. In this study, a method has been established to extract thyroid hormones, thyroxine and triiodothyronine, from the.egg and whole embryo and to quantify by radioimmunoassays. Thyroid hormones were contained in the yolk of unfertilized eggs of not only salmonids but also of all teleost species so far examined. In chum salmon and rainbow trout, the hormone concentrations decreased gradually until hatching, and then rapidly during yolk absorption.
The tissue and plasma levels of the hormones increased during emergence of chum salmon fry from the gravel bed, just before downstream migration.
No such increase was seen in non-migratory rainbow trout. A significant increase in the plasma levels of thyroxine was observed in the chum salmon fry as well as in amago salmon during downstream migration. A marked increase in the tissue levels of the thyroid hormones was also observed during metamorphic climax of the flounder larvae. Corticosteroid, cortisol, was also contained ih the salmon eggs, and changes in its concentrations were more or less in parallel with those in the thyroid hormones. The hormones seem to play important roles during early development of fishes, especially in association with migration and metamorphosis.

Report

(4 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • 1987 Annual Research Report
  • Research Products

    (35 results)

All Other

All Publications (35 results)

  • [Publications] Tagawa,M.et al.: "Presence of thyroxine in eggs and changes in its content during early development of chum salmon,Oncorhynchus keta." General and Comparative Endocrinology. 68. 129-135 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Iwata,M.et al.: "Inocorsistent effect of thyroid hormone alteration on seawater adaptability of fry of chum salmon,Oncorhynchus keta." Nippon Suisan Gakkaishi. 53. 1969-1973 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Miwa,S.et al.: "Thyroxine surge in metamorphosing flounder larvae." General and Comparative Endocrinology. 70. 158-163 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Inui,Y.et al.: "Changes in tissue thyroxine level of metamorphosing flounder Paralichthys olivaceus reared at different temperature" Nippon Suisan Gakkaishi. 55. 485-490 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Tagawa,M.et al.: "Changes in tissue and blood concentrations of thyroid hormones in developing chum salmon." General and Comparative Endocrinology. 76. 437-443 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Iwata,M.et al.: "Effects of thyroid hormones on phototaxis of chum and coho salmon juveniles." Aquaculture. 82. 329-338 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Hasegawa, S., T. Hirano, T. Ogasawara, M. Iwata, T. Akiyama and S. Arai: "Osmoregulatory ability of chum salmon, Oncorhynchus keta, reared in fresh water for prolonged periods." Fish Physiology & Biochemistry 4, 101-110, 1987.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Tagawa, M. and T. Hirano: "Presence of thyroxine in eggs and changes in its content during early development of chum salmon, Oncorhynchus keta." General & Comparative Endocrinology 68, 129-135, 1987.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Iwata, M., S. Komatsu, S. Hasegawa, T. Ogasawara and T. Hirano: "Inconsistent effect of thyroid hormone alteration on seawater adaptability of the chum salmon, Oncorhynchus keta." Nippon Suisan Gakkaishi 53, 1969-1973, 1987.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Miwa, S., M. Tagawa, Y. Inui and T. Hirano: "Thyroxine surge in metamorphosing flounder larvae." General & Comparative Endocrinology 70, 158-163, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Tanangonan, J.B., M. Tagawa, M. Tanaka and T. Hirano: "Changes in tissue thyroxine level of metamorphosing flounder Paralichthys olivaceus reared at different temperatures." Nippon Suisan Gakkaishi 55, 485-490, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Ogasawara, T., T. Hirano, T. Akiyama, S. Arai, and T. Tagawa: "Changes in plasma prolactin and growth hormone concentration during freshwater adaptation of juvenile chum salmon (Oncorhynchus keta) reared in seawater for a prolonged period." Fish Physiology & Biochemistry 7, 309-313, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Inui, Y., M. Tagawa, S. Miwa and T. Hirano: "Effects of bovine TSH in prometamorphic flounder larvae on the tissue thyroxine level and metamorphosis." General & Comparative Endocrinology 74, 406-410, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Tagawa, M. and T. Hirano: "Changes in tissue thyroxine level and metamorphosis." General & Comparative Endocrinology 76, 437-443, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Iwata, M., Yamanome, M. Tagawa, H. Ida and T. Hirano: "Effects of thyroid hormones on phototaxis of chum and chol salmon juveniles." Aquaculture 82, 329-338, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Tagawa, M., Mswa, Y. Inui, E.G. de Jesus and T. Hirano: "Changes in thyroid hormone concentrations during early development and metamorphosis of the flounder, Paralichthys olivaceus." Zoological Science 1990.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] de Jesus, E.G., Y. Inui and T. Hirano: "Cortisol enhances the stimulating action of thyroid hormones on dorsal fin-ray resorption of the flounder larvae in vitro." General & Comparative Endocrinology 1990.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Fujioka, Y., S. Fushiki, M. Tagawa, T. Ogasawara, and T. Hirano: "Seasonal changes in plasma thyroxine levels in biwa and amago salmon reared in the pond." Nippon Suisan Gakkaishi 1990.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Tagawa, M., M. Tanaka, S. Matsumoto and T. Hirano: "Thyroid hormones in eggs of various freshwater, marine and diadromous teleosts and their changes during embryonic development." Fish Physiology & Biochemistry 1990.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Tanangonan,J.B.et al.: "Changes in tissue thyroxine level of metamorphosing flounder paralichthys olivaceus reared at different temperature." Nippon Suisan Gakkaishi. 55. 485-490 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Ogasawara,T.et al.: "Changes in plasma prolactin and growth hormone concentration during freshwater adaptation of juvenile chum salmon(Oncorhynchus keta)reared in seawater for a prolonged period." Fish Physiology Biochemistry. 7. 309-313 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Inui,T.et al.: "Effects of bovine TSH injection in prometamorphic flounder larva on the tissue thyroxine level and metamorphosis." General and Comparative Endocrinology. 74. 406-410 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Tagawa,M.& T.Hirano: "Changes in tissue and blood concentrations of thyroid hormones in ceveloping chum salmon." General and Comparative Endocrinology. 76. 437-443 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Iwata,M.et al.: "Effects of thyroid hormones on phototaxis of chum and coho salmon juveniles." Aquaculture. 82. 329-338 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Fujioka,Y.et al.: "Seasonal changes in plasma thyroxine levels in biwa and amago salmon reared in the pond." Nippon Suisan Gakkaishi. 56. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Miwa,S.;et al.: General and Comparaticve Endocrinolgy. 70. 158-163 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Iwata,M.;et al.: Aquaculture.

    • Related Report
      1988 Annual Research Report
  • [Publications] Tagawa,M.;et al: General and Comparative Endocrinology.

    • Related Report
      1988 Annual Research Report
  • [Publications] Inui,Y.;et al.: General Comparative Endocrinology.

    • Related Report
      1988 Annual Research Report
  • [Publications] Tagawa,M.;et al: Zoological Science.

    • Related Report
      1988 Annual Research Report
  • [Publications] Hasegawa,S.etal.: Fish Physiology and Biochemistry. 4. 101-110 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Tagawa,S.;T.Hirano: General and Comparative Endocrinology. 68. 129-135 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Iwata,M.etal: Nippon Suisan Gakkaishi. 53. 1969-1973 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Tagawa,S.;T.Hirano: Proc.1st Congr.Asia Oceania Soc.Comp.Endocr.1. 345-346 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] 森沢正昭・会田勝美・平野哲也: 回遊魚の生物学. 260 (1987)

    • Related Report
      1987 Annual Research Report

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Published: 1987-04-01   Modified: 2016-04-21  

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