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

doi:10.19640/j.cnki.jtau.2020.02.011

Journal of Tianjin Agricultural University ›› 2020, Vol. 27 ›› Issue (2): 48-51.doi: 10.19640/j.cnki.jtau.2020.02.011

• Researches and Scientific Notes • Previous Articles Next Articles

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-dong^{1,Corresponding Author}

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

Abstract

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). PO₄^3--P and COD_mn were negatively correlated with soluble MCs content.

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

CLC Number:

S913

WANG Xue-ying, DONG Shao-jie, YOU Hong-zheng, LIU Ke-ming, DAI Wei, ZHANG Shu-lin, LIU Bin, BI Xiang-dong. Changes of soluble MCs content in aquaculture water and its influencing factors under the action of berberine[J]. Journal of Tianjin Agricultural University, 2020, 27(2): 48-51.

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

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