CAJ | 학술논문

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36 h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，48 h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48 h的半致死质量浓度分别为：22．934、32．972、28．919、48．837 mg/L ；安全质量浓度分别为0．8982、1．8009、0．9162、3．6367 mg/L。据此将溞状Ⅰ期幼体对新洁尔灭的安全浓度即0．8982 mg/L作为中华虎头蟹苗种培育的安全质量浓度。
재수온25～26℃、염도22시，연구료신길이멸대중화호두해소상유체화대안유체적급성독성，이심조안전고효지억제、살멸취축충적약물급괄의용량。시험결과표명，중화호두해각기유체대신길이멸적내독능력수시간이경질。반치사질량농도치재36 h내，유대도소의차위대안유체、소상Ⅲ기유체、소상Ⅱ기유체、소상Ⅰ기유체，48 h후칙의차위대안유체、소상Ⅱ기유체、소상Ⅲ기유체、소상Ⅰ기유체。신길이멸대중화호두해소상Ⅲ기유체、소상Ⅱ기유체、소상Ⅰ기유체화대안유체적48 h적반치사질량농도분별위：22．934、32．972、28．919、48．837 mg/L ；안전질량농도분별위0．8982、1．8009、0．9162、3．6367 mg/L。거차장소상Ⅰ기유체대신길이멸적안전농도즉0．8982 mg/L작위중화호두해묘충배육적안전질량농도。
Acute toxicity of bromo-geraminum to zoea (Z) and megalopa (M ) in Chinese tiger crab Orithy-ia sinica was studied at water temperature of 25-26 ℃ and a salinity of 22 .It turned out that the endur-ance capacity of Chinese tiger crab larvae to bromo-geraminum was changed over time .The LC50 value(me-dium lethal concentration) in 36 h was ranged as M >Z3 > Z2 >Z1 ,while in 48 h M>Z2 > Z3 > Z1 .The LC50 of bromo-geraminum in 48 h was found to be 22 .934 mg/L in Z3 ,32 .972 mg/L in Z2 ,28 .919 mg/L in Z1 ,and 48 .837 mg/L in M ,with safe concentration of 0 .8982 ,1 .8009 ,0 .9162 ,and 3 .6367 mg/L from Z1 to M in turn .It is suggested that the safe concentration be 0 .8982 mg/L during larva breeding of Chi-nese tiger crab .