Their biological indexes including gonadsomatic index(GSI), condition factor, hepatosomatic index (LSI),fullness of stomach and intestine were measured and season variations in biologica.

• 测定样本的成熟系数、肥满度、肝指数、胃肠充塞度等生物学指标,分析了其生物学指标的季节变化规律及成幼鱼间的差别。