海洋外来物种入侵问题现如今已经逐渐成为国际社会在维护海洋生态环境及海洋生物多样性方面所关注的重点问题。每年因为海洋外来物种被有意无意地引进，许多国家遭受到极大的经济及海洋生态方面的损失。寻求长久有效的解决方法就被逐渐重视起来。作为海洋生物多样性及海洋生态环境保护方面的翘楚，美国、加拿大和澳大利亚的国家实践可为受此困扰的国家所借鉴。其国内完善健全的立法体系为海洋外来生物入侵的有效防治提供了保障。
Marine alien species’ invasions nowadays have become the key issues which arouse he attention of the international community considering the marine environment protection and marine biodiversity preservation. Each year，the intentional or unintentional introduction of marine alien species has made coastal countries suffered great economic and marine ecological losses. It is necessary to seek effective solutions to solve. As marine biodiversity protection leaders in the world，the United States，Canada and Australia，have experience the marine alien species’ invasion severely. These three countries made relatively systematic domestic legislative system to conquer the issues which reflect their compliance with the relevant international conventions about marine invasive species’ prevention and control.
