給水の紫外線消毒によるクロアワビ筋萎縮症の予防  [in Japanese] Prevention of Amyotrophia in Large Scale Production of Juvenile Abalone, Haliotis discus discus, by Ultraviolet Irradiation of Water Supply  [in Japanese]

Access this Article

Search this Article

Author(s)

Abstract

'84年以降福岡県栽培漁業公社では, クロアワビの筋萎縮症による大量死が毎年発生しており, 種苗の安定供給に支障をきたしていた。'94年以降には, 種々防疫的措置を講じたが, 充分な効果は得られなかった。一方, 福岡県水産海洋技術センターでは, 当公社の種苗生産に用いた採卵群の一部を隔離飼育することにより本症の発生を防ぐことに成功した。これらを検討した結果, 給水が筋萎縮症原因体に汚染されていることが推測されたため, '97年秋採卵の稚貝について, 給水の処理別飼育実験を行ったところ, UV海水を使用した区のみ筋萎縮症は発生せず, 給水を紫外線で消毒することにより筋萎縮症が予防できると考えられた。'98年秋採卵以後の量産飼育については従来の防疫的措置に加え, 給水にUV海水を用いることにより'99, '00, '01年の3ケ年続けて, 健全種苗の大量生産に成功した。

Amyotrophia of juvenile abalones has been a serious impediment in large scale production of <I>Haliotis discus discus</I> and <I>H. discus hannai</I> at the Fukuoka Mariculture Corporation since 1984. The efforts to prevent this infectious disease by removal of all the stocks from the facilities, disinfection of the facilities and washing fertilized eggs with U.V. -irradiated sea water were unsuccessful. Since the sea water supply was suspected to be contaminated with the etiological agent, a rearing experiment was conducted using three groups of juvenile <I>H. discus discus</I> that were previously reared in untreated, anthracite-filtered or U.V. -irradiated sea water, respectively, at their larval stages. Amyotrophia occurred in the former two groups but not in the last group that was reared in U.V.-irradiated sea water. U.V.-irradiation of sea water supply with other measures mentioned above has succeeded to produce healthy juveniles on a large scale in the hatchery for consecutive three years since 1999.

Journal

  • Aquaculture Science

    Aquaculture Science 50(2), 227-232, 2002-06-20

    Japanese Society for Aquaculture Science

References:  8

Cited by:  3

Codes

  • NII Article ID (NAID)
    10008750747
  • NII NACSIS-CAT ID (NCID)
    AN00124667
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03714217
  • NDL Article ID
    6212641
  • NDL Source Classification
    ZR26(科学技術--農林水産--水産)
  • NDL Call No.
    Z18-761
  • Data Source
    CJP  CJPref  NDL  J-STAGE  JASI 
Page Top