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第二次世界大战后的三十多年来,由于人口的增长和人类对动物性蛋白需要量的增加。随着在现代工业和科学技术的发展,世界渔业生产得到了迅速的增长,1956、1960、1964、1967、1970年世界鱼产量分别超过了三、四、五、六、七千万吨。六十年代末世界水产品占有量平均每人每年约为18公斤,我国当时约为3.6公斤。但自1970年至今,虽然世界每年仍以7％的递增率在继续增船增网,然产量已停滞不前,在鱼源危机日益加深,而捕捞强度又日益加重的形势下,渔业自然生态陷入了越来越深重的恶性循环。渔业生产在成本高、产出少的情况下,给渔业经济收益也带来了越来越严重的影响。
For more than three decades after the Second World War, due to population growth and human demand for animal protein increased. With the development of modern industry and science and technology, the world’s fishery production has witnessed rapid growth. The world’s fish production in 1956, 1960, 1964, 1967, and 1970 respectively exceeded three, four, five, six, and 70 million tons. At the end of the 1960s, the world’s aquatic products occupy an average of about 18 kilograms per person per year, compared with about 3.6 kilograms in our country. Since 1970, however, although the world continues to increase shipments by increasing shipments by 7% every year, production has stagnated. Under the situation of deepening the crisis of fish sources and increasing fishing intensity, the fishery’s natural ecology Caught in a deeper and deeper vicious circle. Fishery production, with its high cost and low output, has also brought increasingly serious impacts on the economic benefits of fisheries.