Scientists have seen some adult fish dying before they can lay their eggs.

科学家们发现一些成年鱼类会在产卵前死亡。

Adult fish can experience fin erosion when exposed to oil, as well as reduced growth rates and enlarged livers.

成年鱼接触油后会出现鳍腐蚀、生长速度降低和肝脏肿大的情况。

Around the world, these animals voraciously consume fish eggs and larvae, routinely undermine marine farming efforts, and outcompete adult fish by consuming the resources they need to survive.

这些动物在全球海域内对鱼卵和幼鱼狼吞虎咽，破环海洋养殖业，同时，由于生存资源被消耗，成鱼也会受到它们的影响。

In the adult fish, the beating of the heart is  controlled by a pacemaker region, a group of cells which control the speed of contractions in  the rest of the organ.

在成鱼中， 心脏的跳动是由起搏器区域控制的，起搏器区域是一组控制器官其他部分收缩速度的细胞。