Development of a new technology for seed production of the Japanese eel based on ecological information
Project/Area Number |
18208018
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
General fisheries
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Research Institution | The University of Tokyo |
Principal Investigator |
TSUKAMOTO Katsumi The University of Tokyo, 海洋研究所, 教授 (10090474)
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Co-Investigator(Kenkyū-buntansha) |
青山 潤 東京大学, 海洋研究所, 特任准教授 (30343099)
大竹 二雄 東京大学, 海洋研究所, 教授 (20160525)
金子 豊二 東京大学, 大学院・農学生命科学研究科, 教授 (70221190)
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Project Period (FY) |
2006 – 2008
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Project Status |
Completed (Fiscal Year 2008)
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Budget Amount *help |
¥48,230,000 (Direct Cost: ¥37,100,000、Indirect Cost: ¥11,130,000)
Fiscal Year 2008: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2007: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2006: ¥30,550,000 (Direct Cost: ¥23,500,000、Indirect Cost: ¥7,050,000)
|
Keywords | 増養殖 / 種苗生産 / ウナギ / 種苗生産技術 / 催熟 / 水温刺激 / 産卵行動 / 走光性 / レプトセファルス / 発育 |
Research Abstract |
資源が激減したウナギの養殖用種苗を補うために, 天然生態情報を活用して人工種苗の生産技術の開発研究を行った。その結果, ホルモンを使わず, 水温の操作のみにより自然にウナギを成熟させる技術の確立に道が開けた。雌雄の親魚を水槽内で自然産卵させることにより, 奇形率が減り, 良質の卵を得ることができた。天然仔魚の栄養段階の解析から, マリンスノーを餌としていることがわかった。天然の生息環境を調べて, これを模した飼育装置を開発し, 生産コストを大幅に削減することができた。本研究によりウナギの大量種苗生産の実現に向けて大きく前進した。
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Report
(4 results)
Research Products
(158 results)
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[Journal Article] In review. Positive buoyancy in eel leptocephali: an adaptation for life in the ocean surface Layer2009
Author(s)
Tsukamoto, K. , Y. Yamada, Okamura, A., H. Tanaka, M. J. Miller, T. Kaneko, N. Horie, T. Utoh, N. Mikawa &S. Tanaka
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Journal Title
Marine Biology 156
Pages: 835-846
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Peer Reviewed
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[Journal Article] Distribution of leptocephali of the freshwater eels,genus Anguilla,in the waters off west Sumatra in the Indian Ocean2007
Author(s)
Aoyama J., S.Wouthuyzen, M, J.Miller, Y.Minegishi, GMinagawa, M. Kuroki, S. R.Suharti, T.Kawakami, K.O.Sumardiharga & K.Tsukamoto
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Journal Title
Environmental Biology of Fishes 80
Pages: 445-452
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Peer Reviewed
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[Presentation] ウナギの産卵回遊生態2009
Author(s)
塚本勝巳
Organizer
平成20年度東北ブロック底魚研究連絡会議
Place of Presentation
八戸プラザホテル, 八戸市
Year and Date
2009-03-10
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[Presentation] Morphological changes and otolith formation during metaorphosis of Japanese eel leptocephali in captivity2008
Author(s)
Kuroki, M. , N. Fukuda, Y. Yamada, A. Okamura, N. Horie, N. Mikawa, T, Utoh, S. Tanaka & K. Tsukamoto
Organizer
5th Woeld fisheries Congress
Place of Presentation
Pacifico Yokohama, Yokohama, Japan
Year and Date
2008-10-21
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[Presentation] School size spawning Japanese eel:Estimationfrom genetic data2008
Author(s)
Yoshinaga, T. , K. Watabane, R. Sudo, E. Sawada, Y. Minegishi, M. Kuroki, A. Shinoda, J. Aoyama and K. Tsukamoto
Organizer
5th Woeld fisheries Congress
Place of Presentation
Pacifico Yokohama, Yokohama, Japan
Year and Date
2008-10-21
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[Presentation] ウナギ大回遊の謎2008
Author(s)
塚本勝巳
Organizer
三方五湖水辺生態系再生シンポジウム
Place of Presentation
若狭町三方公民会館, 福井県若狭町
Year and Date
2008-10-05
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[Presentation] ウナギ研究最前線2007
Author(s)
塚本 勝巳
Organizer
船の科学館海・船セミナー2007
Place of Presentation
船の科学館(東京都港区)
Year and Date
2007-08-26
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[Presentation] Migration scales of catadromous eels:dlversity and evolution of larval migration in catadromouseels based on their distribution,morphology,and early life history2007
Author(s)
Kuroki, M., J. Aoyama, M. J. Miller, H. Kim, S. Kimura & K. Tsukamoto
Organizer
2nd International Scientific Symposium on Diadromous Fishes Challengers for Diadromous Fishes in a Dynamic Global EnVironment
Place of Presentation
Hlifax Marriott Hotel,Hlifax,Nova Scotia,Canada
Year and Date
2007-06-19
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[Book] Migration scales of catadromous eels: diversity and evolution of larval migration based on their distribution, morphology and early life history2009
Author(s)
Kuroki M. , J. Aoyama, H. Kim, M. J. Miller, S. Kimura & K. Tsukamoto
Publisher
American Fisheries Society ("Challenges for Diadromous Fishes in a Dynamic Global Environment" eds. Haro, A. T. Avery, K. Beal, J. Cooper, R. Cunjak, M. Dadswell, R. Klauda, C. Moffitt, R. Rulifson & K.Smith)(発行確定)
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[Book] Review of ocean-atmospheric factors in the Atlantic and Pacific oceans influencing spawning and recruitment of anguillid eels2009
Author(s)
Miller, M. J. , S. Kimura, K. D. Friedland, B. Knights, H. Kim, D. J. Jellyman & K. Tsukamoto
Publisher
American Fisheries Society ("Challenges for Diadromous Fishes in a Dynamic Global Environment" eds. Haro, A. T. Avery, K. Beal, J. Cooper, R. Cunjak, M. Dadswell, R. Klauda, C. Moffitt, R. Rulifson & K.Smith)(発行確定)
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[Book] The origin of diadromous fish migration:the rand om escapement hypothesis2009
Author(s)
Tsukamoto, K. , M. J. Miller, A. Kotake, J. Aoyama & K. Uchida
Publisher
American Fisheries Society ("Challenges for Diadromous Fishes in a Dynamic Global Environment" eds. Haro, A. T. Avery, K. Beal, J. Cooper, R. Cunjak, M. Dadswell, R. Klauda, C. Moffitt, R. Rulifson & K.Smith)(発行確定)
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