What are the four major fish species in China?

The four major fish species in China are: herring, grass carp, silver carp, and bighead carp.

Black carp, also called black carp, has larger scales all over its body.

It looks like grass carp, but its scales and fins are grayish-black.

This is where the name herring comes from.

The scales are large and thick.

Its tail is slender than grass carp.

The dorsal fin, pectoral fin, pelvic fin and tail fin are all longer and stiffer than grass carp.

Black carp is mainly distributed in the plain areas south of the Yangtze River in my country, and is rare north of the Yangtze River.

Grass carp is also known as grass carp, oil grass carp, grass carp, white grass carp, grass carp, grass root (Northeast), mixed carp, black herring, etc.

The body is long and "delicate", the body color is greenish-yellow, and the abdomen is slightly white.

The scales are large and thick.

Its dorsal fin, pectoral fin, pelvic fin and tail fin are all smaller and shorter than herring.

It inhabits rivers and lakes in plain areas, and generally likes to live in the middle and lower layers of water and near shore areas with many aquatic plants.

Silver carp, also known as silver carp, bream, silver carp, jumping silver carp, and silver carp, belongs to the order Cypriniformes and the family Cyprinidae, and is one of the four famous domestic fishes.

The body shape is flat on the sides, slightly taller, and spindle-shaped, with a bluish-gray back and white sides and abdomen.

Pectoral fin does not extend beyond base of pelvic fin.

Bighead carp is also called silver carp, yellow silver carp, silver carp, fat-headed fish, big-headed fish, black silver carp, hemp carp, and also called male fish.

The body is a bit like silver carp, but the head is much larger than silver carp, so it is also called "fat-headed fish" and has the nickname of "scavenger in the water". It is one of the four domestic fishes in China.

Extended information: herring, grass carp, silver carp, bighead carp.

They all belong to the class Fish, family Cyprinidae.

Black carp inhabits the bottom of the water and feeds mainly on snails, clams and other molluscs and aquatic insects.

Grass carp likes to move around the edges of waters and feed on aquatic plants.

Silver carp lives in the upper layers of the water and feeds mainly on phytoplankton.

Bighead carp also like to move in the upper layers of the water and feed on zooplankton as their main food.

From the late Yin Dynasty to the Tang Dynasty, the object of fish farming in our country has always been carp.

In the Tang Dynasty, because the emperor's surname was Li, which sounds the same as Li, "carp" was used to symbolize the royal family. "Carp" was a taboo and could not be caught or sold.

Those caught must be released, and whoever sells them will be punished with a 60-pound slap. These are already stipulated by law.

Under this situation, the fishermen were forced to find new breeding targets, namely green, grass, silver carp and bighead carp.

Due to their different feeding habits and habitat habits, these four kinds of fish are very suitable for mixed culture in a pond. They can make full use of natural bait and water space, and the breeding benefits are greater.

Therefore, it has become a traditional cultured fish in my country.

To this day, these four fish species are still the main fish species used in freshwater fish farming in my country.

Because they are artificially cultured fish, they are called the "four major fishes".