据报道,栖自于海洋中的生物有数千万种,这是一个极其庞大的生物群。对于这些极为丰富的生物资源的开发利用,已引起各国科学家的关注,就自然资源相对贫乏的日本而言,其重要性更是自不待言的。然而,由于海水这一介质的阻碍,为人类开发海洋造成了极大的困难,致使开发工作一度收效不大。 According to reports, there are tens of millions of species living in the ocean. This is an extremely large group of creatures. The development and utilization of these extremely rich biological resources have attracted the attention of scientists from various countries. In terms of Japan, which is relatively poor in natural resources, its importance is even more self-evident. However, due to the obstruction of the seawater medium, it has caused great difficulties for humans to develop the oceans, resulting in little success in development work.