【摘要】 本文根据西辽河流域鲇鱼的染色体核型特征，结合形态学数据，鉴定该种鱼为鲇鱼（ Ｓｉｌｕｒｕａｓ ａｓｏｔｕｓ） 。并对其适应性和育种价值的细胞学基础进行了讨论更多还原

【Abstract】 In this paper catfish is distinguished as Silurus asotus,according to the characers of kargotype and morphology The cellar evidences of adaptability and breeding are discussed as well更多还原