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Mechanism of outbreak in bacterial cold-water disease of ayu (Plecoglossus altivelis): an approach based on research of the life history

Research Project

Project/Area Number 25450283
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Aquatic bioproduction science
Research InstitutionNihon University

Principal Investigator

TAKAI Noriyuki  日本大学, 生物資源科学部, 准教授 (00350033)

Co-Investigator(Kenkyū-buntansha) MANO Nobuhiro  日本大学, 生物資源科学部, 准教授 (10339286)
KUWAE Tomohiro  国立研究開発法人港湾空港技術研究所, その他部局, チームリーダー (40359229)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsアユ / 冷水病 / 種苗放流 / 餌環境 / 安定同位体 / 多摩川 / 過密放流 / 餌料環境
Outline of Final Research Achievements

Inspection of bacterial cold-water disease and research of the life history were performed for ayu (Plecoglossus altivelis) in the Tama River watershed, Japan, in order to examine the causal relationship between the temporal changes in the environment and the outbreak of the cold-water disease in ayu, accompanied with the opening of the fishing season. Pathogenic bacteria were frequently detected in seed-production ayu reared for the release in the river, suggesting that the seed-production ayu was likely a main source of infection in the study area. The outbreak of the disease was found in the caught ayu, which was identified as seed-production fish just after the release in the river by analyzing carbon and nitrogen stable isotope ratios. This result suggests that the stress with the release rapidly developed the disease of the seed-production ayu.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (14 results)

All 2016 2015 2014 2013

All Presentation (12 results) Book (2 results)

  • [Presentation] 多摩川水系の冷水病発生時期におけるアユの摂餌環境2016

    • Author(s)
      高井則之・竹内久登・図斉あかね・稲野辺佳奈・井澤啓貴 ・間野伸宏・上田眞吾・桑江朝比呂
    • Organizer
      平成28年度日本水産学会春季大会
    • Place of Presentation
      東京海洋大学(東京都・港区)
    • Year and Date
      2016-03-27
    • Related Report
      2015 Annual Research Report
  • [Presentation] Main factors contributing to outbreaks of Edwardsiella ictaluri infection among riverine ayu in Japan2015

    • Author(s)
      H.Takeuchi, M.Hiratsuka, H,Oinuma, Y.Umino, D.Nakano, R.Tomono, M.Iwadare, K.Hori, T.Imai, A.Sawamura, H.Izumi, T.Ishikawa, T.Takase and N.Mano
    • Organizer
      Bio Micro World 2015
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2015-10-30
    • Related Report
      2015 Annual Research Report
  • [Presentation] 河川におけるアユの細菌性冷水病の発生要因に関する研究2015

    • Author(s)
      竹内久登・伴野竜次・今井俊宏・岩垂真由・堀一智・生沼大樹・ 平塚元幸・高瀬智洋・澤崎昌子・石川孝典・髙井則之・間野伸宏
    • Organizer
      平成27年度日本魚病学会秋季大会
    • Place of Presentation
      東京大学(東京都・文京区)
    • Year and Date
      2015-09-25
    • Related Report
      2015 Annual Research Report
  • [Presentation] 多摩川におけるEdwardsiella ictaluriファージの動態2015

    • Author(s)
      竹内久登・生沼大樹・中野大輝・岩垂真由・伴野竜次・石川孝典・間野伸宏・高瀬智洋・海野芳幸・中井敏博
    • Organizer
      平成27年度日本水産学会春季大会
    • Place of Presentation
      東京海洋大学
    • Year and Date
      2015-03-29
    • Related Report
      2014 Research-status Report
  • [Presentation] 河川で分離されたEdwardsiella ictaluriファージの性状比較2015

    • Author(s)
      海野芳幸・大野広揮・中井敏博・竹内久登・間野伸宏
    • Organizer
      平成27年度日本水産学会春季大会
    • Place of Presentation
      東京海洋大学
    • Year and Date
      2015-03-29
    • Related Report
      2014 Research-status Report
  • [Presentation] 沿岸海域における魚類生態研究の難しさ2015

    • Author(s)
      高井則之
    • Organizer
      日本水産学会水産環境保全委員会シンポジウム
    • Place of Presentation
      東京海洋大学
    • Year and Date
      2015-03-27
    • Related Report
      2014 Research-status Report
  • [Presentation] Epidemiological survey of pathogenic bacteria among ayu and other feral fishes in a river2014

    • Author(s)
      Hisato Takeuchi, Motoyuki Hiratsuka, Hiroki Oinuma, Takanori Ishikawa, Takehiro Ryuu and Nobuhiro Mano
    • Organizer
      The 9th Symposium on Diseases on Asian Aquaculture
    • Place of Presentation
      Ho Chi Minh City, Vietnam
    • Year and Date
      2014-11-26
    • Related Report
      2014 Research-status Report
  • [Presentation] 天然河川におけるアユのエドワジエラ・イクタルリ感染症の発生には水温や増水が関係する2014

    • Author(s)
      竹内久登・平塚元幸・生沼大樹・海野芳幸・中野大輝・石川孝典・龍岳比呂・高瀬智洋・間野伸宏
    • Organizer
      平成26年度日本魚病学会秋季大会
    • Place of Presentation
      九州大学
    • Year and Date
      2014-09-22
    • Related Report
      2014 Research-status Report
  • [Presentation] 安定同位体比から推察された多摩川支流産アユの生息地利用特性2014

    • Author(s)
      高井則之・稲野辺佳奈・林 絋平・黒川優貴・間野伸宏 ・中井静子・桑江朝比呂
    • Organizer
      平成26年度日本水産学会秋季大会
    • Place of Presentation
      九州大学
    • Year and Date
      2014-09-21
    • Related Report
      2014 Research-status Report
  • [Presentation] 多摩川水系に生息するミシシッピアカミミガメの糞便細菌叢2013

    • Author(s)
      安居 桂・竹内久登・間野伸宏・中井静子・高井則之
    • Organizer
      日本水産学会秋季大会
    • Place of Presentation
      三重大学
    • Related Report
      2013 Research-status Report
  • [Presentation] 狩野川水系におけるカワヨシノボリの生活史2013

    • Author(s)
      吉野展史・丸山紋加・中井静子・高井則之
    • Organizer
      日本水産学会秋季大会
    • Place of Presentation
      三重大学
    • Related Report
      2013 Research-status Report
  • [Presentation] 静岡県狩野川流域におけるカワウの生息地利用の変化2013

    • Author(s)
      戸倉健太・赤池洋平・松永くるみ・高井則之
    • Organizer
      日本水産学会秋季大会
    • Place of Presentation
      三重大学
    • Related Report
      2013 Research-status Report
  • [Book] 水族館と海の生き物たち 11章 魚類の形態と生態2014

    • Author(s)
      高井則之
    • Total Pages
      11
    • Publisher
      恒星社厚生閣
    • Related Report
      2013 Research-status Report
  • [Book] 水族館と海の生き物たち 22章 魚病と治療2014

    • Author(s)
      間野伸宏・中坪俊之
    • Total Pages
      11
    • Publisher
      恒星社厚生閣
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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