| 摘要: |
| 采用静态急性毒性试验的方法,研究了48h内水质中不同的 Ca2+、Mg2+浓度及Ca2+/Mg2+值对凡纳滨对虾(Litopenaeus vannamei)仔虾存活的影响。结果表明,适宜凡纳滨对虾仔虾生存的Ca2+、Mg2+质量浓度分别为30.41～351mg/L和 8.72～863mg/L;最适Ca2+/Mg2+值范围为0.15～0.67。 |
| 关键词: 凡纳滨对虾(Litopenaeus vannamei)仔虾 急性毒性 Ca2+ Mg2+ Ca2+//Mg2+值 死亡率 |
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| 基金项目:科技部成果转化项目(EFN216900365);上海市农业四新技术推广项目(041-5-5) |
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| Acute toxicity effects of calcium and magnesium on larva of Litopenaeus vannamei |
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| Abstract: |
| Acute toxicity test(48 h) was used to study the effects of the different concentrations of Ca2+, Mg2+ and Ca2+/Mg2+on survival of larva of Litopenaeus vannamei. The results indicate that larva would survive in better seawater with concentration of Ca2+ 30.41～351 mg/L and Mg2+ 8.72～863 mg/L. When Ca2+/Mg2+ equals 0.15～0.67, the survival rate would rise more than other rates, when the concentration of Ca2++Mg2+ approaches that in the seawater, the mortality of shrimp is the lowest. |
| Key words: toxicity Litopenaeus vannamei larva Ca2+ Mg2+ Ca2+/Mg2+ mortality |
