翻译练习5

Forget Nessie: there's another insidious creature living in the waters of Scotland. The story starts in the streams and lakes of the northwestern United States, where North American signal crayfish are a familiar sight. Turn over a rock and you may well encounter one. But in Scottish streams and lochs, these creatures are intruders. American crayfish may be destroying the catch.

Allen Pleus, with the Department of Fish and Wildlife in Washington State, says that the signal crayfish is an important species in his region. It's the only native crayfish species, and the freshwater crustaceans are just another part of the ecosystem. \others,\those same crayfish wreak havoc in Scottish waters.

忘记尼斯湖水怪吧，在苏格兰的水域出现了另一种隐秘的有害的生物。它们起源于美国西北部地区的江河湖海中，这里北美淡水大虾是常见的生物。翻开一块岩石，你很有可能发现一只。但是在苏格兰的溪流海湾中，这些生物是入侵者。美国淡水大虾可能会影响捕捉。

华盛顿州的鱼类和野生动物部门的有关人士安伦普鲁斯说这种北美淡水大虾是他所在地区的一个很重要的物种。它是唯一的原始物种，而且淡水甲壳虫类的动物也是生态系统的另一部分。他说：“它们和其他的物种都相处得很好，它们学着去和其他的原始物种和谐相处，做好邻居。” 但是这些北美淡水大虾却在苏格兰水域造成了极大的破坏。

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