ハマグリのビルナウイルス感染に及ぼす重金属イオンの影響

• Chou Hsin-Yiu

  Department of Aquaculture, National Taiwan Ocean University

• Chang Su-Jung

  Department of Aquaculture, National Taiwan Ocean University

• Lee Hsin-Yu

  Department of Aquaculture, National Taiwan Ocean University

• Chiou Yih-Chy

  Department of Aquaculture, National Taiwan Ocean University

書誌事項

タイトル別名

• Preliminary Evidence for the Effect of Heavy Metal Cations on the Susceptibility of Hard Clam (Meretrix lusoria) to Clam Birnavirus Infection.
• Preliminary Evidence for the Effect of Heavy Metal Cations on the Susceptibility of Hard Clam (Meretrix Iusoria) to Clam Birnavirus Infection
• Preliminary Evidence for the Effect of

抄録

The hard clams (Meretrix lusoria) that are cultured in Taiwan have suffered high mortalities each spring and/or summer since 1969. Environmental factors, pollution and infectious diseases have been implicated, but no single factor has been shown to lead directly to large-scale death of the cultured hard clam. In the present study, attempts were made to examine the effects of heavy metals on the susceptibility of the hard clam to birnavirus infection. First we determined the stability of the clam birnavirus in sea, brackish, fresh waters at 4, 15 and 26°C and in solutions containing different concentrations of Zn²⁺, Cd²⁺, Cu²⁺, and Hg²⁺. For each heavy metal cation, two concentrations which had no influence on clam birnavirus infectivity were selected and used to treat the hard clams before and after virus infection. In experiment I, clams were immersed in 10^5.0 TCID₅₀ /ml virus solution for 24 h and subsequently exposed to one of the heavy metals. Cumulative mortalities of clams were 20∼52% in most experimental groups although mortalities reached 91% in infected clams exposed to high concentrations of copper. In experiment II, groups of 60 clams were exposed to one of the heavy metals for 7 days and then infected with the virus, while controls were only expose to heavy metals. Mortalities of clams in the experimental groups reached 65∼90% within 28 days, while only 10% mortalities were observed in the groups that were exposed to either heavy metals or virus infection alone.

収録刊行物

• 魚病研究

  魚病研究 33 (4), 213-219, 1998

  日本魚病学会

キーワード

• heavy metal
• zinc
• cadmium
• copper
• mercury
• hard clam
• birnavirus

詳細情報

• CRID: 1390282681437617024
• NII論文ID: 10019211393
• NII書誌ID: AN00063165
• DOI: 10.3147/jsfp.33.213
• ISSN: 18817335
• ISSN: 0388788X
• NDL書誌ID: 4595626
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4595626
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可