Naseri M H, Imanpour M R, Valiollah J, Safari O. Lethal concentration (LC50) determination of fresh water angel fish (Pterophyllum scalare) exposed to zinc oxide nanoparticles (ZnO NPs). J. Aqua. Eco 2020; 10 (2) :43-51
URL:
http://jae.hormozgan.ac.ir/article-1-873-en.html
Abstract: (2971 Views)
The aim of this study was to determine the lethal concentration of zinc oxide nanoparticles in freshwater angelfish. Accordingly, 126 specimens of angelfish were prepared with a mean standard length of 3 ±0.51 mm and an average weight of 3.5 ± 0.3 g and after adaptation to new conditions, a toxicity test was performed in a completely randomized design with three replications for 96 hours. In addition to the control group, 6 treatments were prepared with concentrations of 0, 40, 80, 120, 160, and 200 mg/l zinc oxide nanoparticles. After the end of the experiment, the data were analyzed by probit analysis with a 95% confidence level and lethal concentrations ranging from 5 to 95 percent values were calculated from the probit table. Then, the lethal concentration of 50 percent at 24, 48, 72 and 96 hours was 188.04, 119.93, 83.75, and 74.99 mg/L, respectively, by probit analysis. The results of this study show that zinc oxide nanoparticles are slightly toxic in terms of toxicity to freshwater angelfish.
Type of Study:
Research |
Subject:
Special Published: 2020/10/1