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1 巴伦支海渔业资源概况巴伦支海历来就被认为是世界海洋的一个最具生产效能的海区。其鱼类生产率(720kg/km~2)超过海洋鱼类的平均生产率(225kg/km~2)3倍还多。第二次世界大战后的若干年来,那里的年捕获量平均约为200万t,而在70年代末时,就已达到450万t。后来,由于原先作为渔业资源主要组成部分的鳕科(Gadidae)数量的下降,而使渔获量明显地出现了滑坡现象。尤其在80年代初期,渔获
1 The Barents Sea fisheries resource profile The Barents Sea has long been considered one of the most productive areas of the world’s oceans. Its fish productivity (720kg / km ~ 2) is more than three times that of marine fish (225kg / km ~ 2). In a few years after World War II, the annual catch there was on average about 2 million tons, which reached 4.5 million tons by the late 1970s. Subsequently, there was a marked decline in catches due to the decline in the number of Gadidae, a major component of fishery resources. Especially in the early 1980s, catch