National Taiwan Ocean University Institutional Repository:Item 987654321/44642
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題名: Toxicity of copper sulfate to juvenile grass prawn, Penaeus monodon
作者: Guo, J.J.;Liao, I C.
日期: 1992
上傳時間: 2017-11-24T02:43:06Z
出版者: COA Fisheries Series
摘要: Abstract:
Copper sulfate has been generally used for many years to reduce algal density in ponds, and to prevent culture animals from being infected with diseases. The purpose of this study was to investigate the toxicity of copper sulfate at therapeutic level and at toxic level when exposed to juvenile Penaeus monodon for 24 hours. It showed that at toxic level of 40 ppm, copper sulfate caused gill damage and reduced the survival rate of P. monodon. Residual copper in the prawn was markedly eliminated during a short period of immersion into clean seawater. Prawn exposed to therapeutic level of 0.4 ppm of copper sulfate did not exhibit any side effects. It is suggested sublethal level of copper sulfate also did not cause any undesirable effect to the prawn which is transfered into clean seawater after exposure. The result of this study showed that at therapeutic levels, that is, at a level of up to 4 ppm and with exposures of up to 24 hours, copper sulfate can be safely applied to ponds with juvenile P. monodon.
關聯: 33, pp.1-7
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/44642
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