作　　者： ; ; (赵小奎）;

机构地区： 中山大学生命科学学院

出　　处： 《中国核科技报告》 1997年第S1期33-34,共2页

摘　　要： 翡翠贻贝（Perna viridis）的个体大小对放射性核素¹²⁵Ⅰ在其体内的积累与分布影响显著。实验结果表明,小个体对¹²⁵Ⅰ的浓集能力比大个体强。在贝体各部分中,足丝对¹²⁵Ⅰ的浓缩因子（约0.5×10³～1.5×10³）比其他部分高得多,为软体组织的30～200倍,为足的200～600倍,为贝壳的600～1000倍。足丝的湿重虽不及整体湿重的1％,但积累的¹²⁵ Effect of body size on accumulation and distribution of 125I in the green mussel ( Perna viridis ) has been studied- The results showed that concentration capacity of every part in smaller mussels was higher than that in larger ones. Concentration factors of 125I in byssus (about 0. 5×103- 1. 5×103),the highest in all parts of the mussels,were 30-200 times as that in soft tissues, 200-600 times as that in feet, 600-1000 times as that in shells. Although wet weight of byssus was no more than 1% of whole body’s wet weight,the content of I25I accumulated in it accounted for as high as 75% of total 125I content. The relationship between concentration factor of 125I in byssus and whole body’s wet weight (or shell length) can be discribed as a negative power function.

关 键 词： 积累与分布 翡翠贻贝 个体大小 整体湿重 浓缩因子 生命科学学院 实验室 放射性核素 中山大学 影响显著

领　　域： [核科学技术]