中山大学学报(自然科学版)2003，Vol.42Issue(4)：59-63,5.
福尔马林处理对石斑拟合片盘虫和斜带石斑鱼的影响
Effect of Formalin Treatment on the Monogenean Pseudorhabdosynochus epinepheli (Monogenea) and the Fish Epinephelus coioides
摘要
Abstract
Prophylactic methods against Pseudorhabdosynochus epinepheli (Monogenea) infection on the fish Epinephelus coioides were investigated in April 2000.The effect of formalin in seawater on P.epinepheli was that the semi-lethal concentration is 250×10-6 for 25 min,and 50×10-6 for 50 min.The effect of formalin in freshwater on P.epinepheli is reported as:the semi-lethal concentration was 83×10-6 for 3 min.The semi-lethal time for freshwater alone was 21 min.The toxicity of formalin in seawater to E.coioides was assessed:the semi-anaesthetic concentration was 940×10-6 in 30 min and 645×10-6 in 45 min.The toxicity of formalin in freshwater to E.coioides was as follows:the semi-anaesthetic concentration was 1 300×10-6 in 5 min and 500×10-6 in 10 min.The semi-lethal formalin concentration to E.coioides in seawater was between 600×10-6 and 1 000×10-6,and in freshwater was between 250×10-6 and 500×10-6.The semi-anaesthetic and semi-lethal time of E.coioides in freshwater were 95 min and 115 min respectively.These results demonstrated that the lethal formalin concentrations for P.epinepheli in both seawater and freshwater fell in a safe range for E.coioides.关键词
斜带石斑/石斑拟合片盘/防治方法Key words
Epinephelus coioides/Pseudorhabdosynochus epinepheli/prophylactic methods分类
农业科技引用本文复制引用
杨廷宝,林蠡,陈勇智,刘升发..福尔马林处理对石斑拟合片盘虫和斜带石斑鱼的影响[J].中山大学学报(自然科学版),2003,42(4):59-63,5.基金项目
国家863资助项目(2001AA621010) （2001AA621010）
广东省自然科学基金资助项目(021681) （021681）
