On the Accumulation and Transfer of Heavy Metal in Some Zooplankters from Xiamen Harbour
【中文摘要】 原于吸收法的测定结果表明,厦门海区几种常见浮游动物的主要重金属含量因种类而异,含Zn量30.40-291.4μg/g.dw含Cu3.620-37.62μg/g.dw,含Cd最低(0.025-1.38μg/g.dw).经一定时间培养的中华哲水蚤的累积Cu量随水体Cu浓度的增大和培养时间的延长而提高,但Cd含量则几乎不变,中华哲水蚤粪块含Cu量的比用作饵料的三角指藻高2.7-29倍,ECd含量略低于藻.桡足类可从粪块中排除相当部分进入体内的重金属,这对海洋环境的金属下移具有重要作用. 【英文摘要】 The heavy metals in zooplankters from Xiamen Harbour were determined by means of AAS. Heavy metal contents varied with different zooplankters, Zn contents (30.40-294.4μg/g ·dw) Were higher than Cu (3.620-37.62), whilst Cd contents were quite low(0.025 -1.38) in animals. Calanus sinicus was exposed to seawater with different Cu levels (2,5,10 ppb), and then Cu and Cd contents in animals were measured. Results showed that Cu increace In animals was Proportional to Cu levels in seawater and the period of xposu...