In the case of the new bedford killifish the situation is similar but more complicated .

就新贝德福德港的鱼来说情况颇为相似，便更为复杂。

Stegeman has been chronicling resistance to toxic pcbs and polycyclic aromatic hydrocarbons in another coastal species , a killifish .

斯蒂门记录有另一种对有毒的多氯联苯和多环芳烃有抵抗作用海岸物种，那是一种鱼。

Both hudson tomcod and new bedford killifish however have unusual ahr molecules . And it is this that seems to explain their immunity .

哈德逊小鳕与新贝德福德港鱼具有了异常的ahr分子，因此也就能解释为什么它们具备这样的免疫力。

Both hudson tomcod and new bedford killifish are able to tolerate levels of pcb far higher than those that would kill such fish in cleaner waters .

哈德森的鲟鱼和新贝德福德的鱼能够适应如此高的pcb含量，这已远远高于清水中的致死量，这是为什么呢？

Dr hahn is looking at a different animal , the killifish ( pictured ) , in new bedford harbour , massachusetts , which was polluted by other producers .

hahn博士正在观察另外一群，鱼（上图所示），马萨诸塞州的新贝德福德港亦是深受其他工厂的污染。