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浩瀚的海洋是地球上生命的摇篮。它覆盖地球表面积的71％,尚未被利用的海洋与海岸的有效面积比陆地大5～10倍。海水含有生命生长和繁殖所必需的丰富无机物。海洋生物资源丰富,种类繁多(约达16万种)。它们不仅能充分利用太阳能进行光合作用,还有大量未被开发利用的生物(据估计,已被开发利用仅占1％)。随着当代全球人口的激增、耕地锐减、陆地资源日渐减少乃至枯竭,和环境污染日益严重,人类对海洋的依赖将越来越大,甚至有人认为海洋将成为人类21世纪赖以生存和发展的“另一星球”。
The vast ocean is the cradle of life on earth. It covers 71% of the Earth's surface area, and the available area of the unoccupied sea and coast is 5 to 10 times larger than the land. Seawater contains abundant inorganic materials necessary for the growth and reproduction of life. Marine life is rich in resources (about 160,000 species). They not only make full use of solar energy for photosynthesis, but also a large number of undeveloped organisms (estimated to have been developed and utilized only 1%). With the current global population surge, sharp decline in arable land, dwindling land resources and even depletion of land resources, and increasing environmental pollution, mankind's reliance on the oceans will become increasingly large. Some people even think that the sea will become the 21st century for mankind to survive and develop The “other planet.”