新洁尔灭对中华虎头蟹幼体的急性毒性试验  

Acute Toxicity of Bromo-geraminum to Chinese Tiger Crab Orithyia sinica Larvae

作　　者：卢伟 曹琛 邢佐平 郝咏芳 宋松伟 王天麒 

机构地区：[1]营口市水产科学研究所,辽宁营口115003

出　　处：《水产科学》2014年第9期587-590,共4页Fisheries Science

基　　金：辽宁省海洋与渔业厅资助项目(2011016)

摘　　要：在水温25-26℃、盐度22时,研究了新洁尔灭对中华虎头蟹溞状幼体和大眼幼体的急性毒性,以寻找安全高效地抑制、杀灭聚缩虫的药物及适宜用量。试验结果表明,中华虎头蟹各期幼体对新洁尔灭的耐毒能力随时间而更迭。半致死质量浓度值在36h内,由大到小依次为大眼幼体、溞状Ⅲ期幼体、溞状Ⅱ期幼体、溞状Ⅰ期幼体,48h后则依次为大眼幼体、溞状Ⅱ期幼体、溞状Ⅲ期幼体、溞状Ⅰ期幼体。新洁尔灭对中华虎头蟹溞状Ⅲ期幼体、溞状Ⅱ期幼体、溞状Ⅰ期幼体和大眼幼体的48h的半致死质量浓度分别为：22.934、32.972、28.919、48.837mg/L;安全质量浓度分别为0.8982、1.8009、0.9162、3.6367mg/L。据此将溞状Ⅰ期幼体对新洁尔灭的安全浓度即0.8982mg/L作为中华虎头蟹苗种培育的安全质量浓度。Acute toxicity of bromo-geraminum to zoea（Z）and megalopa（M）in Chinese tiger crab Orithyia sinica was studied at water temperature of 25-26℃and a salinity of 22.It turned out that the endurance capacity of Chinese tiger crab larvae to bromo-geraminum was changed over time.The LC50value（medium lethal concentration）in 36 hwas ranged as M 〉Z3〉 Z2〉Z1,while in 48hM〉Z2〉 Z3〉 Z1.The LC50 of bromo-geraminum in 48 hwas found to be 22.934mg/L in Z3,32.972mg/L in Z2,28.919mg/L in Z1,and 48.837mg/L in M,with safe concentration of 0.8982,1.8009,0.9162,and 3.6367mg/L from Z1 to M in turn.It is suggested that the safe concentration be 0.8982mg/L during larva breeding of Chinese tiger crab.

关 键 词：新洁尔灭 中华虎头蟹 幼体 急性毒性 

分 类 号：S968.25[农业科学—水产养殖]