Also known as silver carp, silver carp jumping, silver carp, puffer fish, sweet potato fish and silver carp head. Freshwater fish. In ancient times, it was called the bream. "Compendium of Materia Medica" said: "The bream fish is everywhere, with a small flat head, fine scales and a fat belly, and its color is the whitest." Silver carp has a flat body, a big head and small eyes, which are located under the axis of the head, with fine scales, gray back, and slightly black dorsal fin tip and caudal fin. Silver carp's natural resources are widely distributed, which are common in the Yangtze River, Pearl River, Huaihe River, Qiantang River and Heilongjiang River systems, and the middle and lower reaches of the Yangtze River and Xijiang River reach of the Pearl River are the most dense. Silver carp, like herring, grass carp and bighead carp, is one of the four major fish in China, with artificial culture all over the country and the output ranking first. Because silver carp often lives in the deep waters and waves of big rivers, its position in fishing activities is not so important, and it is not the main object of fishermen's fishing. Silver carp mainly feeds on phytoplankton in the water, and its feeding method is different from that of ordinary fish. It sucks the phytoplankton in the water into its mouth by sucking water bit by bit, and discharges the water through gill rakes, while the plankton remains in its mouth and is swallowed into its stomach. Silver carp neither eats earthworms, diced meat, snail meat, river shrimp and other meat bait. Silver carp especially likes the turbid bait fog around the sour and sweet bait. As long as the fisherman buries the hook in the sour and sweet bait fog, the silver carp will suck the hook into his mouth and get hooked when he smokes the delicious bait fog. This is the secret way to catch silver carp. The commonly used bait for silver carp fishing is powdery dry bait: bran, bean cake powder, corn powder and secondary powder, each 25%, which are mixed evenly without any seasoning; Dried rapeseed cake and bean cake powder are baited, and 50% rapeseed cake and 50% bean cake powder are mixed evenly without any seasoning. Sour wet bait, with bean curd residue from bean products industry, bean juice residue from food industry and vinegar residue from brewing industry each one third. The bait is usually a two-in-one acid bait, with 75% corn flour and 25% bran, which are mixed and steamed into a steamed corn head, and then broken while it is hot. You can also use three-in-one acid bait, bean cake, bran and corn flour, stir-fry the bean cake and bran, and steam the corn flour into a corn head. There are also fragrant and sweet bad food, 50% of fine bran, 20% of corn flour, 20% of flour, and cake powder 10%. Mix them evenly, take dry powder to the fishing ground, and wet the pond water to form bait balls. In addition, there are fishy acid bait, water-based silver carp bait and fragrant rapeseed cake bait. The fragrant rapeseed cake is made by grinding rapeseed, mixing with cooked rice and 50% rapeseed cake powder, and kneading repeatedly to make the bait sticky. There are many techniques for silver carp fishing, and the better techniques are: submerged hook fishing with submerged bait, floating hook fishing with suspended positioning in the middle of water, lightning lifting fishing with empty hook and floating fishing with hand pole.