六十年代末期以来,由于一系列生物及其他因素,世界渔业发生了重大的变化。由于秘鲁鳀鱼的大量捕捞(1200多万吨),全世界海产品的捕捞量以每年4％以上的速度持续地增长。但七十年代后半期,由于秘鲁鳀鱼捕捞量减少,大西洋一斯堪的纳维亚鲱鱼资源储量下降,200海里经济区的设立,也使得鱼类及其他水产品捕捞总量急剧下降。然而,新渔区的发现及传统捕捞区域中鱼类资源的恢复,使七十年代的世界渔获量 Since the late 1960s, due to a series of biological and other factors, significant changes have taken place in the world’s fisheries. Due to large catches of Peruvian anchovy (more than 12 million tonnes), catches of marine products worldwide continue to grow at rates of over 4% annually. However, in the latter half of the 1970s, as a result of the reduction of catfish catches in Peru, the reserves of Atlantic-Scandinavian herring declined and the establishment of a 200-nautical mile economic zone also led to a sharp drop in the total catch of fish and other aquatic products. However, the discovery of new fishing areas and the restoration of fish stocks in the traditional fishing areas have made the world’s catch of the seventies