近年来,挪威大幅度地增加了商品鲑的生产,扩大了海水养殖大西洋鲑和虹鳟的规模.1971-1975年每年生产1,000吨的鲑科鱼,其中虹鳟占80%,而到1979年,鲑科鱼类的产量增加了4倍,此时虹鳟只占总产量的50%.现在,挪威从事鲑鱼养殖业的养殖场超过200个.部分养殖场专门生产鱼种,另一 In recent years, Norway has significantly increased the production of commercial salmon and expanded the scale of marine saltwater salmon and rainbow trout producing 1,000 tons of salmonids per annum from 1971 to 1975, of which rainbow trout accounted for 80%. By 1979, salmon Rainbow trout accounts for only 50% of total production at present, with more than 200 farms operating in salmon farming in Norway, some of which specialize in the production of fish species and the other