天津农学院学报 ›› 2020, Vol. 27 ›› Issue (2): 48-51.doi: 10.19640/j.cnki.jtau.2020.02.011

• 研究与简报 • 上一篇    下一篇

小檗碱作用下养殖水体溶解性MCs含量变化及影响因子的研究

王雪莹1, 董少杰1, 尤宏争2, 刘克明2, 戴伟1, 张树林1, 刘斌1, 毕相东1,通信作者   

  1. 1.天津农学院 水产学院 天津市水产生态及养殖重点实验室,天津 300384;
    2.天津市水产研究所,天津 300221
  • 收稿日期:2019-05-15 出版日期:2020-06-30 发布日期:2020-07-03
  • 通讯作者: 毕相东(1980-),男,教授,博士,主要从事养殖水域生态学研究。E-mail:yl801123@aliyun.com。
  • 作者简介:王雪莹(1992-),女,硕士在读,主要从事养殖水域生态学研究。E-mail:m13920508530@163.com。
  • 基金资助:
    国家自然科学基金面上项目(31772857); 天津市自然科学基金项目(17JCYBJC29500); 天津中青年创新骨干人才项目(无编号)

Changes of soluble MCs content in aquaculture water and its influencing factors under the action of berberine

WANG Xue-ying1, DONG Shao-jie1, YOU Hong-zheng2, LIU Ke-ming2, DAI Wei1, ZHANG Shu-lin1, LIU Bin, BI Xiang-dong1,Corresponding Author   

  1. 1. Key Laboratory of Aqua-ecology and Aquaculture of Tianjin, College of Fisheries, Tianjin Agricultural University, Tianjin 300384, China;
    2. Tianjin Fisheries Research Institute, Tianjin 300221, China
  • Received:2019-05-15 Online:2020-06-30 Published:2020-07-03

摘要: 为探究原位控藻过程中养殖水体中溶解性MCs含量变化规律及关键驱动因子,本试验以小檗碱作为杀藻剂,在蓝藻水华暴发盛期的淡水鱼类养殖池塘中,开展了杀藻剂作用下养殖围隔内水中溶解性MCs含量变化规律及其与水化学指标间相关性的研究。试验设置1个药物处理组(小檗碱浓度为4 mg/L)和1个对照组(未添加药物),每组设3个平行,试验为期8 d。试验结果显示:在小檗碱作用下,围隔内水中溶解性MCs含量随时间呈现先升高后降低的变化趋势,最高值出现在第三天,MCs含量最大值为4.514 μg/L。影响水中溶解性MCs含量的主要环境因子依次为NO3--N、NO2--N、NH4+-N,与其呈正相关,其中NO3--N与MCs呈显著正相关(P<0.05),PO43--P、CODmn与其呈负相关。

关键词: 小檗碱, 蓝藻, 溶解性MCs, 水化学指标

Abstract: To explore the change rule of soluble microcystins (MCs) content and its key driving factors in aquaculture water in situ bloom control, berberine was used as algicide in freshwater fish culture pond during the peak period of cyanobacteria bloom, and the change rule of soluble MCs content in enclosure and its correlation with hydrochemical indexes were studied. Algicide-treated group with 4 mg/L berberine and control group without berberine were set up in triplicate. The experiment lasted 8 days. The results showed that the content of soluble MCs in the enclosed water treated with berberine increased first and then decreased, reaching the maximum value of 4.514 μg/L on the third day. The main driving factors affecting soluble MCs content positively were NO3--N、NO2--N and NH4+-N in turn, and NO3--N had significant positive correlation with soluble MCs content (P<0.05). PO43--P and CODmn were negatively correlated with soluble MCs content.

Key words: berberine, cyanobacteria, soluble MCs, hydrochemical indexes

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