【摘要】 以卤虫无节幼体（36h）和成虫（16d）为例,在温度为15±3℃、盐度为30的条件下,通过单因子静态急性毒性试验方法,分别研究了Cu²⁺、Mn²⁺和Zn²⁺对卤虫的无节幼体和成虫的单一毒性效应;在此基础上,以卤虫卤虫无节幼体（36h）为例,在相同试验条件下,通过等毒性溶液法,研究了Cu²⁺、Mn²⁺和Zn²⁺对卤虫的联合毒性效应。试验结果表明:卤虫无节幼体对三种金属离子的耐受能力均高于成虫,Cu²⁺﹑Mn²⁺和Zn²⁺的48h LC₅₀分别是4.0、27.19和115.95 mg/L,而成虫Cu²⁺﹑Mn²⁺和Zn²⁺的48h LC₅₀仅为1.31、6.86和34.23 mg/L;且对两个时期的卤虫,三种金属离子毒性由强至弱均为Cu²⁺> Mn²⁺>Zn²⁺;三种重金属对卤虫无节幼体和成虫的安全浓度（SC）分别是0.4、2.72、11.6、0.13、0.69和3.42 mg/L。联合毒性试验结果表明Cu-Mn、Cu-Zn和Mn-Zn均对卤虫无节幼体表现为拮抗作用。更多还原

【Abstract】 Studies on acute toxicity of Cu²⁺, Mn²⁺ and Zn²⁺ to Artemianauplii（36h） and adults were carried out at 15 ±3 ℃ in the natural seawater where salinity is 30 using single-factor acute toxicity; on this basis, equi-toxicity test was used to evaluate the effect of joint toxicity of Cu²⁺, Mn²⁺ and Zn²⁺ to Artemia nauplii（36h） in the same conditions.Results show that Artemia has different tolerances for the three heavy metal ions when it is in different growth period,and the interaction of heavy metal ions varied with growth period, adults are more sensitive of the three heavy metals; The 48h LC₅₀ of these three heavy metal to the Artemia nauplii is 4.0, 27.19 and 115.95 mg/L, and to the adults is 1.31, 6.86 and 34.23 mg/L;the order of toxicity of cuprum, manganese and zinc for Artemia nauplii and adults was Cu²⁺>Mn²⁺>Zn²⁺; the safe concentration of the three heavy metal ions(Cu²⁺, Mn²⁺ and Zn²⁺) to Artemia nauplii（36h） and adults were 0.4, 2.72,11.6, 0.13, 0.69 and 3.42 mg/L.The results of combined toxicity test showed that Cu-Mn,Cu-Zn and Mn-Zn were all antagonistic to the Artemia naupli.更多还原