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由于鲸鱼数量的急剧减少,据此推论,现在的磷虾资源是过剩的。按以往的鲸鱼数量粗略估算,过剩的磷虾数量达一亿五千万吨。但最近的资料表明,上述估算的磷虾数字偏大。人们发现磷虾的寿命比原先设想的要长,虾群分布又十分广泛,所以实际渔获量要比资源可捕量低得多。目前苏联的磷虾产量只有1983年的四分之一,这说明磷虾的蕴藏量在下降,加上肉食性动物如军曹鱼、海豹、企鹅、小鲳鲸等数量呈增加的趋势,它们消耗了一部份过剩的磷虾。确实,任何以南极磷虾为基础的渔业国家,必须注意到南
Due to the drastic reduction in the number of whales, it is concluded that krill resources are now surplus. According to a rough estimate of the number of whales in the past, the number of surplus krill reaches 150 million tons. However, recent data indicate that the above estimates of krill numbers are large. It has been found that the lifespan of krill is longer than previously thought and the distribution of shrimp swarms is so widespread that the actual catches are much lower than the resource captures. At present, the production of krill in the Soviet Union is only one-quarter of that in 1983, which indicates that the stock of krill is declining. Coupled with the increasing number of carnivorous animals such as cobia, seals, penguins and goat whales, they consume An excess of krill Indeed, any fishing country based on Antarctic krill must take note of South