Combined inhibition effects of peracetic acid and isothiazolone on alga Tribonema sp. bloom and their safety on Pacific white leg shrimp Litopenaeus vannamei
ZHENG Chuan，MA Yan，PAN Lian-de
Key Laboratory of Exploitation and Utilization of Aquatic Genetic Resources，Ministry of Education，Shanghai Ocean University，Shanghai 201306，China
Abstract: The combined inhibition effects of peracetic acid and isothiazolone on alga Tribonema sp. bloom and acute toxicity of both chemicals to Pacific white leg shrimp Litopenaeusvannamei with body weight of (0.043 5±0.000 8)g and (2.576 8±0.024 0) g were studied by a static method to search a safe, environmental friend and efficient algae inhibiting products. The results showed that synergistic alga-removal effects of both peracetic acid and isothiazolone were observed, the best at proportion of peracetic acid to isothiazolone=5∶3,with the alga Tribonema sp. bloom inhibition rate of 97.40% and the synergistic index of 0.14 in 96 h. The activities of superoxide dismutase (SOD) and catalase(CAT)re were shown to be elevated first and then declined, and the content of malondialdehyde (MDA) to be increased in the alga exposed to the drugs. The safe concentration was found to be the ratio peracetic acid to isothiazolone=0.21 mg/L∶0.12 mg/L for the Pacific white leg shrimp post larvae and 1.17 mg/L∶0.70 mg/L for the juveniles. The findings indicate that peracetic acid and isothiazolone are applied in Pacific white leg shrimp culture ponds with causation even though they have good inhibitory effect on Tribonema bloom.
郑串, 马艳, 潘连德. 过氧乙酸与异噻唑啉酮合剂对黄丝藻藻华的抑制及南美白对虾养殖安全性研究[J]. 大连海洋大学学报, 2017, 32(5): 526-533.
ZHENG Chuan, MA Yan, PAN Lian-de. Combined inhibition effects of peracetic acid and isothiazolone on alga Tribonema sp. bloom and their safety on Pacific white leg shrimp Litopenaeus vannamei. Journal of Dalian Ocean University, 2017, 32(5): 526-533.
2017, Vol. 32 
