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Bioscientific Studies on the Seaward and Spawning Migration of Salmonids in the North Pacific Oceans

Research Project

Project/Area Number 63045001
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionUniversity-to-University Cooperative Research
Research InstitutionHokkaido University

Principal Investigator

YAMADA Juro (1989-1990)  Professor, Faculty of Fisheries, Hokkaido University, 水産学部, 教授 (60001575)

佐藤 修 (1988)  北海道大, 水産, 教授

Co-Investigator(Kenkyū-buntansha) EBBESSON Sve  アラスカ大学, 海洋学部, 教授
MATHISEN Ole A.  Professor, Fisheries and Ocean Sciences, University of Alaska, 水産海洋学部, 教授
ANDO Seiichi  Associate Professor, Faculty of Fisheries, Kagoshima University, 水産学部, 助教授 (80131986)
SHIMIZU Motohiro  Lecturer, Faculty of Fisheries, Hokkaido University, 水産学部, 講師 (80002088)
TAKAHASHI Koretaro  Associate Professor, Faculty of Fisheries, Hokkaido University, 水産学部, 助教授 (90125328)
HARA Akihiko  Associate Professor, Faculty of Fisheries, Hokkaido University, 水産学部, 助教授 (40091483)
YAMAUCHI Kohei  Associate Professor, Faculty of Fisheries, Hokkaido University, 水産学部, 助教授 (10109514)
HATANO Mutsuo  Professor, Faculty of Fisheries, Hokkaido University, 水産学部, 教授 (80001600)
MASADA Kiyoshi  Professor, Faculty of Fisheries, Hokkaido University, 水産学部, 教授 (20001589)
SATO Osamu  Professor Emeritus, Faculty of Fisheries, Hokkaido University, 水産学部, 名誉教授 (70001568)
EBBESSON Sven O. E.  Professor, Institute of Marine Sciences, University of Alaska
Project Period (FY) 1988 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 1990: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1989: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1988: ¥2,400,000 (Direct Cost: ¥2,400,000)
KeywordsSalmonids / Spawning migration / Gonadal maturation / Sex steroids / Thyroid hormone / Vitellogenin / Bone metabolism / Triglyceride synthesis
Research Abstract

Captain Masuda (Oshoro-maru), professor Hatano (Hokkaido University), Associate Professor Yamauchi (Hokkaido University), Dr. Takagi (Hokkaido University) and Professor Mathisen (University of Alaska) obtained the fish samples in the Gulf of Alaska and the mouth, the middle and spawning ground of Copper River. After coming back to Japan, their analysis were performed. The results obtained are as follows : After
1) Changes in circulating hormones during spawning migration
At the start of chum salmon spawning migration, estradiol-17beta (E_2) levels raised, followed by the increase as spawning migration progressed. Vitellogenin contents also increased during the migration. However, the concentrations decreased on the spawning ground, whereas 17alpha, 20beta-dihydroxy-4-pregnen-3-one (DHP) increased dramatically. These results suggest that E_2 and DHP are involved in vitellogenesis and oocyte maturation, respectively.
Thyroxine (T_4) and triiodothyronin (T_3) showed constant levels during sp … More awning migration. Interestingly, however, T_4 and T_3 were taken in the gonad at the start of the migration. These results indicate that T_4 and T_3 may be involved in the gonadal development.
2) Changes in bone metabolism
In the sockeye salmon collected from Gulf of Alaska, both formation and resorption of the bone were very active. On the surface of the bone, there were very active osteoblasts forming bone matrix and mononuclear and multinuclear resorptive cells destroying and resorbing calcified matrix. These indicate rapid bone growth during the migration in the ocean. When the fish approached to the mouth of Copper River, activities of the bone formation and resorption decreased. At the spawning ground, on the other hand, almost no osteoblast and resorptive cells existed on the bone surface and bone growth stopped completely. No sexual difference was observed on the metabolism of bone.
3) Changes in lipid synthesis
In accordance with the sexual maturation, chum salmon exhibited an obvious decrease in triglyceride synthetic activity in the liver tissue, while it was increased in the muscle tissue. This was attributed to homeostasis under extraordinary lack of lipid in the muscle tissue under the fasting condition during spawning migration without the substrate supply from the liver. The causes of the degenerative change such as the loss of lipid contents can be ultimately attributed to the progressed activation of lipid hydrolytic enzymes, since there was a remarkable increase in this activity in the liver tissue and also in the muscle tissues of male. Intactivation of lipid sysnthesis in the liver tissue is considered to give impetus to degenerative change.
Professor Sven O. E. Ebbesson (University of Alaska) visited Hokkaido University, Japan, and exchanged the informations on salmon research with this project members. We made sure of keeping the further exchange of mutual informations. Less

Report

(1 results)
  • 1990 Final Research Report Summary

Research Products

(26 results)

All Other

All Publications (26 results)

  • [Publications] Ando Seiichi: "Bilirubinーbinding protein in the serum of spawning chum salmon,its identity with carotenoidーcarrying lipoprotein" Fish Physiol.Biochem.5. 69-78 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Kasahara,Noboru: "Physiological and behavioralo changes in the accelerated underyearling broodstock masu salmon,Oncorhynchus masou,during smoltification" Aquaculture. 82. 21-28 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hatano,Mutsuo: "Lipid metabolism in the liver of chum salmon during spawning migration" Nippon Suisan Gakkaishi. 55. 1623-1627 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ando,Seiichi: "Comparison of carotenoids in muscle and ovary from four genera of salmonid fishes" Comp.Biochem.Physiol.93B. 503-508 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Dickhoff,W.W.: "Relationship between metabolic and reproductive hormones in salmonid fish" Fish Physiol.Biochem.7. 147-155 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ando,Seiichi: "Distribution of guanine and hypoxanthine in the integument of spawningーmigrating chum salmon" Nippon Suisan Gakkaishi. 56. 551 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yamada,Hideaki: "Changes in seawater adaptability,Na+-K+-ATPase activity and circulating thyroxine levels in the underyearling broodstock masu salmon(Oncorhynchus masou)during and after smoltification" Bull.Fac.Fish.Hokkaido Univ.42. 7-15 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yamauchi,Kohei: "Osmoregulation and circulating growth hormone and prolactin levels in hypophysectomized coho slmon(Oncorhymchus kisutch)after transfer to fresh water and seawater" Aquaculture. 92. 33-42 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 上田 宏: "シロザケ雌の産卵回遊に伴う血中ステロイドホルモン量の変動ならびに卵巣のin vitroステロイドホルモン産生能の変化" 日本水産学会誌.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 上田 宏: "シロザケ雄の産卵回遊に伴う血中ステロイドホルモン量の変動ならびに精巣のin vitroステロイドホルモン産生能の変化" 日本水産学会誌.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Iwata,Munehiko: "Effects of thyroxine,growth hormone and cortisol on salinity preference of juvenile coho salmon(Oncorhynchus kisutch)" Mar.Behav.Physiol.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ban,Masatoshi: "Seasonal changes in seawater adaptability of the hatcheryーreared juvenile sockeye salmon,Oncorhynchus nerka" Sci.Rep.Hokkaido Salmon Hatchery.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yamada,Hideaki: "Serum thyroxine,estradiolー17β and testosterone profiles accompanying with smoltification in the masu salmon,Oncorhynchus masou" Submitted to Fish Physiol.Biochem.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Takagi,Yasunori: "Changes in bone metabolism in sockeye salmon(Oncorhynchus nerka)during spawning migtation:A histomorphometric study"

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ando Seiichi: "Bilirubin-binding protein in the serum of spawning chum salmon, its identity with carotenoidーcarrying lipoprotein" Fish Physiol. Biochem.5. 69-78 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Kasahara, Noboru: "Physiological and behavioral changes in the accelerated underyearling broodstock masu salmon, Oncorhynchus masou, during somoltification" Aquaculture. 82. 21-28 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hatano, Mutsuo: "Lipid metabolism in the liver of chum salmon during spawning migration" Nippon Suisan Gakkaishi. 55. 1623-1627 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ando, Seiichi: "Comparison of carotenoids in muscle and ovary from four genera of salmonid fishes" Comp. Biochem. Physiol.93B. 503-508 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Dickhoff, W. W.: "Relationship between metabolic and reproductive hormones in salmonid fish" Fish Physiol. Biochem.7. 147-155 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ando, Seiichi: "Distribution of guanine and hypoxanthine in the integument of spawningーmigrating chum salmon" Nippon Suisan Gakkaishi. 56. 551- (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yamada, Hideaki: "Changes in seawater adaptability , Na+-K+-ATPase activity and circulating thyroxine levels in the underyearling broodstock masu salmon (Oncorhynchus masou) during and after smoltification" Bull. Fac. Fish. Hokkaido Univ.42. 7-15 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yamauchi, Kohei: "Osmoregulation and circulating growth hormone and prolactin levels in hypophysectomized coho salmon (Oncorhymchus kisutch) after transfer to fresh water and seawater" Aquaculture. 92. 33-42 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ueda, Hiroshi: "Changes in serum steroid hormone levels and in vitro steroid hormone production in the ovaries of female chum salmon, Oncorhynchus keta, during spawning migration" Nippon Suisan Gakkaishi.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ueda, Hiroshi: "Changes in serum steroid hormone levels and in vitro steroid hormone production in the testis of male chum salmon, Oncorhynchus keta, during spawning migration" Nippon Suisan Gakkaishi.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Iwata, Munehiko: "Effects of thyroxine, growth hormone and cortisol on salinity preference of juvenile coho salmon (Oncorhynchus kisutch)" Mar. Behav. Physiol.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ban, Masatoshi: "Seasonal changes in seawater adaptability of the hatcheryreared juvenile sockeye salmon, Oncorhynchus nerka" Sci. Rep. Hokkaido Salomon Hatchery.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary

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Published: 1988-03-31   Modified: 2016-04-21  

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