养殖场也易遭寄生虫的侵害，三代虫病是其中之一，挪威的河流大约10％被其感染，灭绝了野生鲑鱼。

Farmed fish are also prone to parasites, one of which, Gyrodactylus salaris, has infected about 10% of Norway’s rivers, wiping out the wild salmon.

youdao

养殖场也易遭寄生虫的侵害，三代虫病是其中之一，挪威的河流大约10％被其感染，灭绝了野生鲑鱼。

Farmed fish are also prone to parasites, one of which, Gyrodactylus salaris, has infected about 10% of Norway’s rivers, wiping out the wild salmon.

youdao