引进物种造成麻烦的报道常见报端和网络媒体。例如,水葫芦的盲目引进对我国的生态环境造成了非常大的影响,有关统计认为我国因水葫芦造成的直接经济损失每年约达80～100亿元之巨。水生生物的引进与其他动植物的引进一样,能够造福人类,也可能危害引入地的生态安全。水葫芦是一个 The introduction of species caused trouble reporting common newspapers and online media. For example, the blind introduction of water hyacinth has a very big impact on the ecological environment in our country. According to relevant statistics, the direct economic loss caused by water hyacinth in our country amounts to about 8 billion to 10 billion yuan each year. The introduction of aquatic organisms, like the introduction of other animals and plants, can benefit human beings as well as endanger the ecological security of the places they are introduced. Water hyacinth is one