农业环境科学学报2012，Vol.31Issue(5)：891-897,7.
多氯联苯(PCB153与PCB28)对大型溞的毒性效应研究
Toxicity Effects of PCB153 and PCB28 on Daphnia magna
摘要
Abstract
In order to evaluate the toxic effects of PCBs on zooplankton, the acute and chronic toxicities of PCB153 and PCB28 were assessed by using Daphnia magna as a tested organism in our study. The results showed that the 48 h-LCg, values of PCB28 and PCB,153 were 27.08 u-g'L"1 and 579.16 μg·L-1, respectively, which indicated that PCB153 was more toxic than fCB153. In the chronic toxic experiment, adverse effects were found both in the growth and reproduction of D. magna when exposed to PCBa and PCB153. The inhibition effects of PCBM on growth and reproduction were enhanced with increasing concentration. The inhibition effect of PCB,53 on growth was enhanced with increasing concentration. However, different performance upon the reproduction of D. magna was exhibited, with inhibition effect at low concentration and promotion effect at high concentration. In the environmental and ecological security study, high attention to PCBs(PCB153, PCB28) should be paid in their potential toxicity of low concentrations of long-term exposure and the acute toxicity of high concentrations.关键词
多氯联苯(PCB153与PCB28)/大型溞/LC50/内禀增长率Key words
PCBs( PCB153, PCB3)/ Daphnia magna/ LCm/ intrinsic rate of natural increase分类
资源环境引用本文复制引用
李娜,聂湘平,黎华寿,刘振乾,杨扬..多氯联苯(PCB153与PCB28)对大型溞的毒性效应研究[J].农业环境科学学报,2012,31(5):891-897,7.基金项目
农业部生态农业重点实验室开放课题 （）
