Ohji Madoka, Arai Takaomi, Miyazaki Nobuyuki
International Coastal Research Center, Ocean Research Institute, The University of Tokyo, 2-106-1 Akahama, Otsuchi, Iwate 028-1102, Japan.
Mar Environ Res. 2005 Apr;59(3):197-201. doi: 10.1016/j.marenvres.2004.02.002.
In order to compare the acute toxicity of tributyltin (TBT) between sexes, five species of caprellid amphipods were exposed to seven levels (0, 0.001, 0.01, 0.1, 1, 10 and 100 microg l(-1)) of TBT for 48 h at 20 degrees C. The 48-h LC50 values in male and female were 1.3-6.4 microg TBTCl l(-1) and 1.2-8.6 microg TBTCl l(-1), respectively. No sex-specific differences of the acute toxicity of TBT were observed in the caprellids. These findings suggest that the risk of survival in response to exposure to TBT between sexes is similar in the caprellids.
为了比较三丁基锡(TBT)在不同性别间的急性毒性,将五种麦杆虫目端足类动物暴露于七个浓度水平(0、0.001、0.01、0.1、1、10和100微克/升)的TBT中,在20摄氏度下暴露48小时。雄性和雌性的48小时半数致死浓度(LC50)值分别为1.3 - 6.4微克TBTCl/升和1.2 - 8.6微克TBTCl/升。在麦杆虫目中未观察到TBT急性毒性的性别特异性差异。这些发现表明,在麦杆虫目中,不同性别对TBT暴露的生存风险相似。