This is crucian carp. It is also found in the river next to my house. I used to catch it every day when I was a child.

The common names of crucian carp are crucian carp, moon crucian carp, soil crucian carp, thin head, fish, cold crucian carp, happy head, crucian carp shell, and river crucian carp. Commonly found in Eurasia, it is a common freshwater fish and belongs to the genus Crucian carp, subclass Cypriniformes, order Cypriniformes, family Cyprinidae.

Many new varieties of crucian carp can be produced through artificial breeding and selection. For example, goldfish is an ornamental fish produced from this. Its scientific name is Carassius auratus?, which is the same as the edible wild crucian carp.

Crucian carp is mainly an omnivorous fish that feeds on plants. It likes to travel in groups and live in a selective place. The meat is tender and has high nutritional value. Every 100 grams of meat contains 13 grams of protein, 11 grams of fat, and a large amount of calcium, phosphorus, iron and other minerals. Crucian carp has extremely high medicinal value. It is mild in nature and sweet in taste. It enters the stomach and kidneys. It has the effects of harmonizing the body and replenishing deficiency, removing diarrhea, warming the stomach when eating, and replenishing vitality. Crucian carp is widely distributed and is produced in waters all over the country all year round. Crucian carp is the most plump from February to April and August to December and is one of the important edible fish in my country. The maximum body length is about 30 centimeters, and the habitat depth is 0 to 20 meters. It is non-toxic, economical edible fish, high quality and low price.