１９８８—１９９０年共取标本鱼２９７尾。鲂年轮形成主要时期在５—６月；体长与鳞长呈明显的直线关系，体重与体长呈幂函数关系。１９８６年繁殖的种群连续三年成为鲂渔获物的优势年龄组，主要渔获物体长为２４—３６ｃｍ。鲂体长生长曲线为一条不具拐点的光滑曲线，体重生长曲线则为不对称且具拐点的Ｓ型曲线 In 1988-1990 a total of 297 specimens of fish were taken. The main period of 鲂 ring formation is from May to June. There is a clear linear relationship between body length and scale length. Body weight and body length show a power function relationship. The breeding population in 1986 became the predominant age group of catfish catch for three consecutive years. The main catches were 24-36 cm in length.鲂 body length growth curve is a smooth curve without inflection point, the body weight growth curve is asymmetric and inflection point S-curve