英语翻译As world catches have increase,the United States landings have risen also,but somewhat less rapidly.The United States catch has increased a little over 1 percent per year since 1946,but the word catch has increased by about 6 percent per

英语翻译As world catches have increase,the United States landings have risen also,but somewhat less rapidly.The United States catch has increased a little over 1 percent per year since 1946,but the word catch has increased by about 6 percent per
英语翻译
As world catches have increase,the United States landings have risen also,but somewhat less rapidly.The United States catch has increased a little over 1 percent per year since 1946,but the word catch has increased by about 6 percent per yeas.Thus,the United States for about falf a century has been producing a declining percentage of the world catch.This has been interpreted by some as a sign that something is wrong.It is often said that the United sates has declined from second to sixth place as a world fishing nation.This is true in terms of weight of commercial catches,but it does not necessarily sighify trouble,because it ignores for fish and shellfish Most of the domestic catch is made up of about a dozen broad categories of fishery product,and we have fully utilized or overharvested all of these preferred resources off our shores.To meet the growing demand for seafoods and other marine products,generated largely by our growing human population,two major alternatives were available to us

英语翻译As world catches have increase,the United States landings have risen also,but somewhat less rapidly.The United States catch has increased a little over 1 percent per year since 1946,but the word catch has increased by about 6 percent per
随着世界上的渔业捕捞量增长,美国的捕捞量也在增加,但低于世界总体增长水平.自1946年以来,美国的捕捞增长率是每年1%多一点,而世界总体水平为每年6%.所以,美国半个世纪以来的捕捞量相对全球来说是一直降低的.人们常说,美国已经从世界第二渔业大国降到了第六的位置.就商业捕捞量方面来说确实如此,但是这并不意味着我们不需要担心,因为这里没有考虑到鱼类和贝类的区别大部分,美国国内的捕捞包括的是几十种鱼类制品,我们充分或是过分的利用了我们近海的这些特定资源.为了满足人口的不断增长和人们对海产品及其它食品需求的增加,我们有两个主要的可选方案.