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International Journal of Aquatic Biology، جلد ۹، شماره ۵، صفحات ۳۳۳-۳۴۳
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عنوان انگلیسی Long-term effect of zinc oxide nanoparticles on population growth, reproductive characteristics and zinc accumulation of marine rotifer, Brachionus plicatilis
چکیده انگلیسی مقاله In the present study, the effects of ZnO nanoparticles (NPs) on marine rotifer, Brachionus plicatilis, was investigated in three separate experiments. Firstly, the sensitivity and reproductive characteristics of B. plicatilis were studied at concentrations of 0, 0.1, 0.5, 1, 3, 5 and 10 mg L -1 of ZnO-NPs for 10 days. Based on the results, the total number of rotifers (TNR) significantly decreased at 5 and 10 mg L -1 of ZnO-NPs. In addition, the specific growth rate (SGR) of animals was negative at two of the concentrations of ZnO-NPs. In the second experiment, the TNR at 4 concentrations of ZnO-NPs (0, 10, 13, 17, and 19 mg L -1 ) during 72 h were tested and the 24-72 h LC 50 of ZnO-NPs was calculated. After three days, the entire population of rotifers was generally lost at 19 mg L -1 of ZnO NPs. The LC 50 of ZnO-NPs in animals at 24, 48, and 72 h intervals was registered as 18.2±1.34, 12.43±0.08, and 9.63±0.26 mg L -1 , respectively. Finally, the zinc accumulation in rotifers was measured at different concentrations (0, 0.1, 0.5, and 1.3 mg L -1 ) of ZnO-NPs and maximum zinc (123 μg g -1 of rotifer DW) uptake by rotifers was observed in treatment 3 mg L -1 of ZnO-NPs. In sum, it can be concluded that the B. plicatilis can be used as a biological model for studying marine water contaminants with nanoparticles, especially ZnO-NPs.
کلیدواژه‌های انگلیسی مقاله Biological model, Nanoparticles, Rotifer, Zinc bioaccumulation.
نویسندگان مقاله | Shilan Mohammadi
Department of Fisheries, Faculty of Natural Resources, Urmia University, P.O. Box: 57153-165, Urmia, Iran.


| Nasrollah Ahmadifard
Department of Artemia, Artemia & Aquaculture Research Institute, Urmia University, P.O. Box: 57153-165, Urmia, Iran.


| Behrooz Atashbar
Department of Analytical and Physics and Applide Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran.


| Abbas Nikoo
Department of Fisheries, Faculty of Natural Resources, Urmia University, P.O. Box: 57153-165, Urmia, Iran.


| Ramin Manaffar


نشانی اینترنتی http://ij-aquaticbiology.com/index.php/ijab/article/view/1292
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کد مقاله (doi) 10.22034/ijab.v9i5.1292
زبان مقاله منتشر شده en
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