Volume 7, Issue 4 (2018)
JFST 2018, 7(4): 249-254 |
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Kamali M, Shaabani A, Kalbasi Masjedshahi M, Paknejad H. Determination of Median Lethal Concentration (LC50) Values of Di-n- Butyl Phthalate on Rainbow Trout Fingerlings(Oncorhynchus mykiss). JFST 2018; 7 (4) :249-254
URL: http://jfst.modares.ac.ir/article-6-28061-en.html
URL: http://jfst.modares.ac.ir/article-6-28061-en.html
1- Fisheries Department, Fisheries & Environment Faculty, Gorgan University of Agriculture & Natural Resources, Gorgan, Iran , kamalilasem@gmail.com
2- Fisheries Department, Fisheries & Environment Faculty, Gorgan University of Agriculture & Natural Resources, Gorgan, Iran
3- Fisheries Department, Natural Resources & Marine Science Faculty, Tarbiat Modares University, Noor, Iran
2- Fisheries Department, Fisheries & Environment Faculty, Gorgan University of Agriculture & Natural Resources, Gorgan, Iran
3- Fisheries Department, Natural Resources & Marine Science Faculty, Tarbiat Modares University, Noor, Iran
Abstract: (6863 Views)
Aims: The purpose of this study was to determine the lethal concentration (LC50 96h) - Butyl phthalate and Calculate of Low Observable Effect Concentration (LOEC) and Non Observable Effect Concentration (NOEC) on rainbow trout fingerlings.
Materials and Method: Acute static toxicity test was performed based on the standard O.E.C.D. 7.3±1.25g) in 96 hours. Statistical calculation was done with SPSS 21 and probit regression and ANOVA method.
Findings: Mortality was increased with increasing concentrations of - Butyl phthalate Within 24 to 96 hours. Lethal concentrations of 24, 48, 72 and 96 hours were 15.46, 12.96, 11.21 and 9.93mg.L-1, respectively. Observable Effect Concentration (LOEC) of 24, 48, 72 and 96 hours were 3.4, 3.8, 7.2 and 9.95mg.L-1, too. Non Observable Effect Concentration (NOEC) of 24, 48, 72 and 96 hours were 0.78, 0.95, 1.45 and 1.68mg.L-1, respectively.
Conclusion: Toxicological studies are necessary for rainbow trout because of their importance and sensitivity of this species to pollutants). The results of this research can be applied to assess the ecological risks and nutritional risks of this group of pollutants. So, an effective management and control strategy must be executed in order to reduce the problems caused by DnBP in the environment.
Materials and Method: Acute static toxicity test was performed based on the standard O.E.C.D. 7.3±1.25g) in 96 hours. Statistical calculation was done with SPSS 21 and probit regression and ANOVA method.
Findings: Mortality was increased with increasing concentrations of - Butyl phthalate Within 24 to 96 hours. Lethal concentrations of 24, 48, 72 and 96 hours were 15.46, 12.96, 11.21 and 9.93mg.L-1, respectively. Observable Effect Concentration (LOEC) of 24, 48, 72 and 96 hours were 3.4, 3.8, 7.2 and 9.95mg.L-1, too. Non Observable Effect Concentration (NOEC) of 24, 48, 72 and 96 hours were 0.78, 0.95, 1.45 and 1.68mg.L-1, respectively.
Conclusion: Toxicological studies are necessary for rainbow trout because of their importance and sensitivity of this species to pollutants). The results of this research can be applied to assess the ecological risks and nutritional risks of this group of pollutants. So, an effective management and control strategy must be executed in order to reduce the problems caused by DnBP in the environment.
Article Type: Original Research |
Subject:
Aquativc toxicology
Received: 2018/09/11 | Published: 2018/12/20
Received: 2018/09/11 | Published: 2018/12/20
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