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在过去的10年中,美国的海鲜消费量上升了25％。上升的主要原因是海鲜能向人类提供低脂肪低胆固醇的蛋白质,而且在三文鱼、金枪鱼、鲱鱼和其他深海海鱼体内含有奥米加3脂肪酸,这是一种能预防预防患冠状动脉心脏病的物质。 海鲜消费量的增加,势必要求供应量的充足。如今,美国自产的海鲜已不能满足本国的需求,因此海鲜供应量的一半来自国外,特别是一些地处热带地区的发展中国家。但是,由于经济相对欠发达、科技相对较落后等原因,这些国家无法使
In the past 10 years, the United States seafood consumption increased by 25%. The main reason for the rise is that seafood provides low-fat, low-cholesterol protein to humans and contains omega 3 fatty acids in salmon, tuna, herring and other deep-sea fish, a substance that prevents the prevention of coronary heart disease . The increase in seafood consumption is bound to require adequate supply. Now that the United States can not produce its own seafood for its own needs, half of its seafood supply comes from abroad, especially in developing countries in the tropics. However, due to the relative underdevelopment of the economy and relative backwardness of science and technology, these countries can not make