Jiangtuan is a long-snouted fish, belonging to Siluriformes, families and genera, also known as fish. Commonly known as Jiangtuan Fish, Fat Tuo Fish and Fat King Fish, Huainan people are also known as Wang Huaiyu. Because its nose is longer than other fish, it is called a long nose. It is mainly distributed in some sections of the main stream of the Yangtze River and the downstream waters of major tributaries. Average individual weight 1.0-5.0kg, belonging to medium-sized fish. Jiangtuan is a rare freshwater economic fish endemic to China.

Wen Chang _ is distributed in the Liaohe River, Huaihe River, Yangtze River, Minjiang River to Pearl River and other water systems in eastern China and western Korea, with the Yangtze River as the main water system. The proboscis is a bottom fish. Often live in the river bend waters with slow water flow, deep water depth and many stones. During the day, they often lurk underwater or in crevices, and go out to look for food at night. When foraging, it also moves in the middle and lower layers of water; Overwintering in the gravel crevices in the deep water of the main stream in winter. It mainly feeds on aquatic insects and its larvae, crustaceans, small mollusks and small fish. Long-snooker is a warm-water fish, its survival temperature is 0 ~ 38℃, its optimum growth temperature is 15 ~ 30℃, its pH range is 6.5 ~ 9.0, and its optimum pH is 7.0 ~ 8.4. It is not resistant to hypoxia. When the dissolved oxygen in the pond water is as low as 2.5 mg/L, its head will float ... long snout _ camp benthos, like clustering, afraid of light. Before 1970s, all fisheries depended on rivers, and artificial farming began in 1980s. Due to long-term overfishing, the ecological resources of this species have been seriously exhausted. Most of them are kept in ponds, cages and factories.

Long kiss _ The meat is tender and tender, and it tastes smooth and delicious. It has always been used as a tribute to the imperial court. There is a folk saying that "you don't know the taste of fish unless you eat Jiangtuan", especially the long-nosed swim bladder is very fat, and the dried fish belly is a world-famous delicacy. Its meat is tender and delicious, rich in fat and without thorns. Protein content 13.7%, fat 4.7%, known as the top grade of freshwater edible fish. The most beautiful thing about this fish is its soft belly. Moreover, its swim bladder is particularly thick, and it is a valuable fish belly after drying. Shishou City, Hubei Province produces "pen rack fish belly", which is famous far and near. Its adhesive layer is thick, its taste is pure, its color is bright and its manufacturing process is unique. The shape of the dried product and a beautiful natural pattern embedded in the swim bladder take care of the light source, which is similar to the Bijia Mountain standing in Shishou City, hence the name "Gabi Fish Belly", and there is a saying that "this stone is unique, and there is no other in the world", which is really a treasure in food.