If fishermen are named, carp will definitely be included. Carp is a species that Chinese fishermen like to catch very much, especially in the northern region. It's really unreasonable that the four big fish don't have carp. Then, why don't the four big fish have carp?
Crucian carp are mostly wild. Since we are talking about "domestic fish", no crucian carp can understand it, but without crucian carp, many people don't understand it and think it is unfair to crucian carp! According to legend, the word "four famous fish" originated from the ancient Tang Dynasty. As we all know, the Tang dynasty was the world of the Li family, and the word "carp" and "Li" of carp were homophonic. In order to avoid taboo, carp was erased from the four famous fish. That is really a "fish".
Among the four major fish, herring and grass carp are similar in size, but herring is bigger and darker; Silver carp and bighead carp are about the same size, and even many people can't tell them apart.
Silver carp head is small and white, also called silver carp, while bighead carp head has black and white "patches", also called silver carp or big-headed silver carp or fat head! Silver carp and bighead carp have similar habits. They are all filter-feeding fish. They filter the food in the water by opening and closing their mouths. Most food sources are plankton and some algae in the water!
There are similarities and obvious differences in biological habits between herring and grass carp. Grass carp is a pelagic fish. The tender leaves and fresh fruits of herbivorous plants are called herbivorous fish, which is a typical herbivorous fish. Living in the middle and lower layers of water bodies and water bodies with many aquatic plants, they mainly eat aquatic plants such as POTAMOGETON POTAMOGETON, verticillata, Microcystis and duckweed. They also like to eat all kinds of terrestrial tender grass, vegetables, rice bran, bran, bean cake, bean dregs and distiller's grains, while herring mostly moves underwater, preferring to eat some natural "vegetarian food" and even feed on underwater screws.