据科学家和社会学家断言,21世纪将是海洋世纪。在全球面临陆地资源日益减少,环境条件恶化,人口膨胀三大难题的今天,人类拓展生存空间的希望在于占地球表面积71%的海洋水域。据测算,海洋生长着地球上80%的生物,资源丰富,生产的潜力很大,按目前人类的消费水平,海洋每年可向人类提供 According to scientists and sociologists, the 21st century will be the century of the sea. Today, facing the three major problems of diminishing land resources, deteriorating environmental conditions and population expansion, the hope of humankind to expand living space lies in the fact that marine waters occupy 71% of the Earth’s surface area. It is estimated that 80% of the earth’s oceans grow with rich resources and great potential for production. According to the current level of human consumption, the oceans can provide human beings with each year