厦门中华白海豚的重金属含量

Contents of heavy metals in Chinese white dolphins from Xiamen Harbour

对厦门港海域８只中华白海豚成体和幼仔体内的重金属（Ｈｇ、Ｃｕ、Ｐｂ、Ｚｎ、Ｃｄ）含量进行了测定。结果表明，与鱼类和无脊椎动物相比，中华白海豚的重金属含量很高。成年的含量又高于幼仔；肝的含量大大超过其他部位。中华白海豚的重金属含量高，与其它处于海洋食物链的最顶级密切相关。

The contents of heavy metals Hg, Cu, Pb, Zn and Cd in 8 Chinese white dolphinswere determined, which include 3 adults (9～30 years old) and 5 babies. The result shows thatthe adults have higher contents of heavy metals than the babies, and the content in the liver ishigher than that in other organs. Compared to fishes and invertebrates, Chinese white dolphinscontain pretty high concentration of heavy metals, which relates to fcod chain.