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斑点叉尾鲴又称沟鲶、河鲶、美洲鲶,属大型经济鱼类,最大个体可达20公斤以上,一般成鱼规格为0.5至1千克;适温范围为0至35.6℃,最适生长温度26至30℃;生长较快,在长江中游地区第一年体重可达30至50克,第二年可达400至1000克;原属肉食性鱼类,经多年养殖驯化,现各生长阶段均能摄食人工配合饲料;在溶氧为2.5至3毫克/升时能正常生活;pH值范围为6.0—9.5;适应盐度范围为0.2一
Channel catfish, also known as ditch catfish, river catfish, catfish, is a large-scale economic fish, the largest individual up to 20 kg or more, the general size of adult fish is 0.5 to 1 kg; suitable temperature range of 0 to 35.6 ℃, the most suitable Growth temperature 26 to 30 ℃; Growth faster, the first year in the middle reaches of the Yangtze River weighing up to 30 to 50 grams, the second year up to 400 to 1,000 grams; originally carnivorous fish, after years of domesticated farming, are now Growth stage can feed artificial feed; Dissolved oxygen is 2.5 to 3 mg / L can live normally; pH range 6.0-9.5; Adapt to the salinity range of 0.2