Hairtail, also known as saury and toothfish, is a trichiuridae animal of Perciformes. As the name implies, hairtail is flat on one side, silvery gray, with light gray dorsal fin and pectoral fin, with tiny spots, black tail, big mouth with fish head, tapering towards the tail, like a thin whip, the head is twice as long as the height, and the total length is about 1 m. Hairtail is widely distributed in the western Pacific Ocean and the Indian Ocean, and can be seen in all coastal provinces in China, with the highest yield in the East China Sea.
Silver carp (Chub), also known as silver carp, silver carp, silver carp and silver carp, belongs to CYPRINIDAE and is one of the four famous fish. The figure is flat on the side, slightly tall, spindle-shaped, with blue-gray back and white sides and abdomen. The head is bigger. Eye position is very low. The balance is fine. The central horny edge of the abdomen extends from below the pectoral fin to the anus. The pectoral fin does not exceed the base of the ventral fin. Fins are gray. The shape is similar to that of bighead carp, and silver carp is impatient and good at jumping. Silver carp is a large freshwater fish raised artificially, which grows fast, has few diseases and high yield, and is mostly mixed with grass carp and carp. Its meat is tender and nutritious, and it is one of the excellent fish species suitable for breeding. It is one of the main freshwater cultured fish in China. Distributed in major water systems throughout the country.
Chinese nicknames of carp: carp muscles and carp seeds. A thick green-brown fish of CYPRINIDAE (CYPRINIDAE), whose scientific name is carp. Originally from Asia, it was introduced to Europe, North America and other regions. They have huge scales and two beards on each side of the upper palate. They live alone or in groups in ponds, lakes and rivers, and their bottoms are calm and covered with grass. Omnivorous, digging food often makes water turbid and increases turbidity, which has adverse effects on many animals and plants. Therefore, it is often regarded as unwelcome and people have to make great efforts to get rid of it.
The Latin scientific name of whale comes from the Greek word "sea monster", which shows the ancient people's reverence for this giant living in the ocean. In fact, whales vary greatly in size. Small whales are all about 6 meters long, the largest can reach more than 30 meters, the heaviest can reach 170 tons, and the lightest can reach 2000 kilograms.