大菱鲆(Scophthalmus maximus)养殖遍及辽宁、河北、山东、福建等地,成为我国北方沿海海水养殖的支柱产业之一,年产量4万～5万t,产值30多亿元,产生了良好的经济和社会效益。随着养殖规模的迅速扩大,大菱鲆疾病问题日渐突出。其中,烂鳍病是大菱鲆养殖中一种较为严重的细菌性疾病,流行范围极广,几乎在各个养殖场均有发生,危害较大。大菱鲆从苗期、养成期直到亲鱼培育期均可感染此病,累积死亡率高 Scophthalmus maximus has become one of the pillar industries in the coastal aquaculture in northern China with an annual output of 40,000-500 tons and a production value of over 3 billion yuan, resulting in good breeding of Scophthalmus maximus in Liaoning, Hebei, Shandong and Fujian. Economic and social benefits. With the rapid expansion of farming scale, turbot disease problems have become increasingly prominent. Among them, rotten fin disease is a more serious bacterial disease in turbot culture, with a very wide range of epidemic, occurring in almost all farms, which is more harmful. Turbot from the seedling stage, the growth period until the broodstock incubation period can be infected with the disease, the cumulative high mortality