苏联天然水域中主要经济鱼类有普,河鲈,赛鲌,梅花鲈(这些鱼约占湖泊鱼产量60%),鳊鱼,鱼,白点狗鱼(约占湖泊鱼产量30%),鲑鳟鱼类,鲤,鲫等(约占湖泊鱼产量10%),此外,河流中还有一些鲟,鲱类等洄游性鱼类。在这些鱼类中,大部分是杂食或吃底栖生物的,如鲤,鲫,普 The main economic fish in the natural waters of the Soviet Union are common fish, perch, matchfly, jackal (these fish account for about 60% of the lake fish production), catfish, fish and white spot dogfish (accounting for about 30% of the lake fish) Salmon trout, common carp, crucian carp, etc. (accounting for about 10% of the total fish production in the lake). In addition, there are some migratory fish such as sturgeon and herring in the river. Most of these fish are omnivorous or benthic organisms, such as carps, crucian carp and populus