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鱼类病理学是在二十世纪后半叶迅速发展起来的一门科学.在鱼类养殖中,各种鱼病造成的损失是相当惊人的.例如,1973年日本淡水渔业总产量64000吨,鱼病造成的减产估计为5800吨,约占10%.1975年苏联池塘养殖的商品鱼总产量为13万吨,鱼病造成的损失量达15000～18000吨,约占15%.因此,鱼病的防治已成为现代养鱼业中一个重要课题.世界大洋生物资源的开发给鱼类病理学的研究提出了许多新课题,海洋鱼类寄生虫的研究也是预报渔获量和渔场的一个依据.鱼类寄生虫学.苏联对淡水鱼类寄生虫的研究具有较高的水平.到五十年代末期,已基本上完成
Fish pathology is a rapidly developing science in the second half of the twentieth century, and the loss caused by various fish diseases is quite alarming in fish farming, for example, the total freshwater fishery production in Japan was 64,000 tons in 1973, Cut production caused by fish diseases is estimated at 5,800 tons, accounting for about 10%. The total output of commercial fish raised from ponds in the Soviet Union in 1975 was 130,000 tons and the fish disease caused a loss of 15,000-18,000 tons, or about 15% Disease prevention and control has become an important issue in the modern fish farming industry. The development of the world’s marine biological resources has raised many new topics for the study of fish pathology. The study of marine fish parasites also serves as a basis for forecasting catches and fisheries Fish Parasitology The Soviet Union studied freshwater fish parasites to a high level and by the end of the fifties it was basically completed