種苗生産過程のスジアラ受精卵およびふ化仔魚に認められた Ichthyodinium 属原虫感染症 Endoparasitic Dinoflagellate of the Genus Ichthyodinium Infecting Fertilized Eggs and Hatched Larvae Observed in the Seed Production of Leopard Coral Grouper Plectropomus leopardus

この論文にアクセスする

この論文をさがす

著者

抄録

Since 1990, mass mortality of fertilized eggs and hatched larvae of the leopard coral grouper <i>Plectropomus leopardus</i> has occurred repeatedly during its seed production in Okinawa Prefecture. A hitherto unknown protozoan parasite multiplied in the yolk sac in great numbers. The yolk sac of fertilized eggs and hatched larvae eventually burst and parasites were released to sea water. The development of the parasite was briefly described, which is very similar to that of the dinoflagellate <i>Ichthyodinium chabelardi</i>, known to infect yolk of several marine fish larvae in Europe. Based on the similarities of, and minor differences in, the mode of infection, development and SSU rDNA sequence, the parasite is tentatively designated as <i>Ichthyodinium</i> sp. PL (= PL for the abbreviated form of the scientific name for the host). Although the life cycle of the parasite is unknown, the disease outbreak was controlled by rearing the broodstock and incubating fertilized eggs in oxidant-treated seawater. The PCR diagnosis using specific primers designed from part of SSU rDNA sequence of the parasite revealed that disease outbreaks in different years were caused by a single species of parasite. This is the first report of <i>Ichthyodinium</i> infection in tropical fish from the Asia-Pacific region.

収録刊行物

  • 魚病研究  

    魚病研究 42(1), 49-57, 2007-03-15 

    The Japanese Society of Fish Pathology

参考文献:  13件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

被引用文献:  2件

被引用文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10018909362
  • NII書誌ID(NCID)
    AN00063165
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    0388788X
  • NDL 記事登録ID
    8742657
  • NDL 雑誌分類
    ZR4(科学技術--生物学--動物)
  • NDL 請求記号
    Z18-994
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ