辽宁地区的淡水　虎鱼主要分布在辽河和鸭绿江两大河流。常见的大约有七种 ,多为小型鱼类 ,生活于底质为沙石的清流中。近年来由于生态环境的恶化和人为等因素的影响 ,使水环境因子和水生生物生长失衡 ,造成淡水　虎鱼难以生存 ,资源数量明显减少。　虎鱼在遗传学、人类食用、水环境监测等方面具有重要的作用 ,因此必须重视淡水　虎鱼的保护和利用 Freshwater tiger fishes in Liaoning Province are mainly distributed in the Liaohe and Yalu rivers. About seven common, mostly small fish, living in the sediment clean sand. In recent years due to the deterioration of the ecological environment and man-made factors, the water environment factor and the imbalance of aquatic organism growth, resulting in difficult to survive freshwater tiger fish, the number of resources decreased significantly. Tiger fish plays an important role in genetics, human consumption, water environment monitoring and so on, so we must pay attention to the protection and utilization of freshwater tiger fish