天津农学院学报 ›› 2022, Vol. 29 ›› Issue (4): 31-35.doi: 10.19640/j.cnki.jtau.2022.04.007

• 研究与简报 • 上一篇    下一篇

微囊藻毒素对凡纳滨对虾急性毒性的研究

黄兰英1,2, 张达娟1,2, 张树林1,2,通信作者, 马丞鸿1,2, 黄莺1,2   

  1. 1.天津农学院 水产学院,天津 300392;
    2.天津市水产生态及养殖重点实验室,天津 300392
  • 收稿日期:2021-02-05 出版日期:2022-12-30 发布日期:2023-01-03
  • 通讯作者: 张树林(1963—),男,教授,博士,主要从事养殖水质调控方向研究。E-mail:shulin63@sina.com。
  • 作者简介:黄兰英(1995—),女,硕士在读,主要从事养殖水质调控方向研究。E-mail:1448700404@qq.com。
  • 基金资助:
    天津市自然科学基金项目(18JCZDJC97800); 天津市科技计划项目(22ZYCGSN00260); 天津市教委科研计划项目(2021 KJ 110); 天津市淡水养殖产业技术体系创新团队-养殖水环境调控岗位(ITTFRS2021000-009)

Study on acute toxicity of microcystins to Litopenaeus vannamei

Huang Lanying1,2, Zhang Dajuan1,2, Zhang Shulin1,2,Corresponding Author, Ma Chenghong1,2, Huang Ying1,2   

  1. 1. College of Fisheries, Tianjin Agricultural University, Tianjin 300392, China;
    2. Tianjin Key Laboratory of Aquatic Ecology and Aquaculture, Tianjin 300392, China
  • Received:2021-02-05 Online:2022-12-30 Published:2023-01-03

摘要: 为探讨MC-LR对凡纳滨对虾的急性毒性研究,为凡纳滨对虾的科学养殖提供参考依据。以凡纳滨对虾为实验材料,分别注射0、50、100和200 μg/kg浓度的MC-LR,记录死亡个体,计算不同浓度MC-LR注射情况下凡纳滨对虾的死亡率及LC50,观察其急性毒性效应。研究结果表明,MC-LR对凡纳滨对虾24、48、72和96 h的LC50分别为439.990、384.655、346.659、320.663 μg/kg。凡纳滨对虾对MC-LR的耐受性较强,个体较大及遭受低浓度MC-LR感染凡纳滨对虾对MC-LR的耐受能力更强。为MC-LR对凡纳滨对虾不同个体大小影响及毒性作用机制研究具有一定意义。

关键词: MC-LR, 凡纳滨对虾, 半致死浓度

Abstract: To study the acute toxicity of MC-LR to Litopenaeus vannamei and provide reference for scientific culture of Litopenaeus vannamei, the research was carried out. With Litopenaeus vannamei as experimental material, the death individuals were recorded by injecting MC-LR at 0, 50, 100 and 200 μg/kg respectively, and the mortality and LC50 of Litopenaeus vannamei under different concentrations of MC-LR injection were calculated to observe its acute toxic effects. The results showed that the LC50 of MC-LR to Litopenaeus vannamei for 24 h, 48 h, 72 h and 96 h were 439.990, 384.655, 346.659 and 320.663 μg/kg respectively. The tolerance of Litopenaeus vannamei to MC-LR wasstrong, and the tolerance of Litopenaeus vannamei to MC-LR was stronger when it was infected with low concentration MC-LR. This study has certain significance for understanding the influence of MC-LR on different individual sizes of Litopenaeus vannamei and its toxic mechanism.

Key words: MC-LR, Litopenaeus vannamei, semilethal concentration

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