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Ca²⁺、Mg²⁺对凡纳滨对虾仔虾生存的影响
周凯¹, 来琦芳¹, 王慧¹, 黄宁宇¹, 么宗利¹
中国水产科学研究院盐碱地渔业工程技术研究中心，东海水产研究所

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

DOI：

分类号:

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)

Acute toxicity effects of calcium and magnesium on larva of Litopenaeus vannamei

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

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