Living in the rivers and lakes in the middle and upper layers, widely distributed, from north to south of China's plains area of the water system are produced this fish. Sexual maturity is 3-4 years old, adult fish in April-June in the river rapids spawning. Young fish from the rivers swim into the subsidiary lakes to feed, fertilization, after the end of autumn, young fish and adult fish to the dry riverbed deep wintering. Growth is very rapid, after sexual maturity, the length of the body continues to increase, the largest individual up to 2 meters long, weighing up to 60 kilograms. Its meat is delicious, and has always been included in the large superior edible fish. Each 100 grams of edible portion containing 18.1-20.8 grams of protein, 1.3-5.4 grams of fat, calories 84-132 kcal, calcium 11-24 mg, phosphorus 144-203 mg, iron 0.7 mg, thiamin 0.04 mg, riboflavin 0.15 mg, 1.7 mg of niacin. Its meat into medicine, with warm, beneficial stomach, vomiting effect, the main treatment of spleen and stomach weakness, regurgitation and vomiting, etc., should always serve.
Gan fish is a large economic fish, widely distributed, the country's major rivers, lakes, large reservoirs and other large waters are produced, spring and fall for the peak production season. Because of its ferocious fish-eating, is the main object of clearing the field in addition to pests, artificial also does not culture, so the production is decreasing year by year, the north has not seen much.