Abstract:Using ecotoxicological approach we studied the effect of bishphenol A (BPA) on the reproductive variables of B. calyciflorus including population growth rate (r), and the mictic female/amicic female (MF/AF), mixis rate (MR), total male number /total female number (M/F), ovigerous females/non-ovigerous females (OF/NOF), fertilization rate (FR), resting egg production (RE), and cyst hatching rates. The results showed that BPA at 0.5mg/L or higher concentration significantly decreased r (0.83~0.86) to control, but BPA had no significant effect on M/F and OF/NOF. BPA from 0.25to 1.0mg/L reduced markedly MF/AF and MR. BPA at 0.125 to 1.0mg/L decreased significantly fertilization rate (3.33%~15.33%) and resting egg production (25.2~39.2ind/8mL). BPA at 0.0625to 1.0mg/L also significantly reduced the hatching rates (8.0%~22.0%) of resting eggs.The results showed that different endpoints of reproductive parameters had different sensitivities to BPA. HR of rotifers appeared to be most sensitive to the toxicity by BPA. Thus, since BPA had an adverse effect on the reproduction of the tested rotifer species, its concentrations in natural waterbodies must be monitored to protect the zooplankton.
陆正和, 阎斌伦, 杨家新. 双酚A对萼花臂尾轮虫生殖的影响[J]. 中国环境科学, 2013, 33(10): 1850-1855.
LU Zheng-He, YAN Bin-Lun, YANG Jia-Xin. Effect of bishphenol A on the reproduction of the rotifer Brachionus calyciflorus. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(10): 1850-1855.