柳根儿鱼(真(鱼岁)——编者注)是一种小型鱼种,广泛分布于东北地区的狭温性水体中。 生存于小河、小溪中的柳根儿鱼,身体略呈纺锤型,前半部较粗,尾部较细,头小吻短,口裂也小。体色因栖息地多为含有黑钨矿物成分的石砾河床而极具黑褐色及细小斑点,以落水昆虫及水生物为食。 Willow grouper (true (fish years old) - Editor’s Note) is a small species of fish widely distributed in the southeastern region of the narrow temperature of water. Living in the creek, brook in the root of fish, the body slightly spindle type, thicker first half, the tail is thin, short kisses, mouth cracking is small. Body color due to habitat mostly containing wolframite composition of the gravel riverbed and extremely dark brown and small spots, to water insects and aquatic plants for food.