Uncover the mystery of king crab's life experience

King crab, also known as stone crab or rock crab, is a crustacean of stone crab. It is not a real crab, but mainly distributed in cold sea areas. Named after its huge size, it is known as the "king of crabs". King crabs belong to deep-sea crabs, with a survival depth of 850 meters and a survival water temperature of 2-5℃. The lowest water temperature that King Crab can survive is 1.4 degrees Celsius. King crabs live in cold water, mainly distributed in the south and north of Sakhalin Island in Russia. Kamchatka region; Far East China Sea; Exploration of coastal areas such as forest outburst; The fishing season is from May to 65438+February. Russian fresh products are generally transported to China in the form of water trucks, while frozen products often appear in the form of boiled or raw frozen king crab legs in the China market.

20 1 1 In September, scientists discovered 1 tens of thousands of giant king crabs in the mud bed basin 850 meters below the Antarctic continental shelf. Scientists say that the appearance of this strange large carnivore may be the first sign of ecological disaster in Antarctic waters.

1. King crab is huge, with the maximum weight of 10 kg. King crabs grow slowly and live for 30 years. From the appearance, the king crab is about 25 cm wide and its leg length is about 1 m, which is relatively large among crustaceans. The whole body was covered with hard thorns King crabs have long and thick legs. Besides a pair of claws, you can also see three feet. The left side of the claw is slightly larger than the right side.

2. The reproduction speed of king crabs is amazing, and each female crab can produce nearly 10,000 live crabs every year. King crabs usually lay eggs in a shoal of about 350 meters from April to June every year. Most of these creatures live in shallow mud and sand and inhabit low-latitude waters. In the breeding season, the life span of a king crab is about 30 years, and the breeding period is often 4 years. The hatching rate of eggs is about 16000/80000.

3. The nutritional value of king crab The crab feet are rich in protein, trace elements and other nutrients, which have a good nourishing effect on the body. In recent years, studies have found that crabs also have anti-tuberculosis effects, and eating crabs is beneficial to the rehabilitation of tuberculosis.

4. Frozen king crabs, that is, king crabs caught, are cleaned, disinfected, cooked (boiled), frozen and hidden on board. This kind of crab is most suitable for ordinary families to eat, but the taste and taste of fresh crabs are almost the same as those of live crabs after being cooked and frozen. It can be eaten after thawing at room temperature, and the price is much cheaper than that of fresh crabs, with the highest cost performance. The price of frozen king crabs ranges from tens of yuan to 200 yuan/kg, and 80-90 yuan 1 kg king crabs are very common.

Frozen king crab has the lowest price, but it is risky to eat. First of all, I'm not sure if it's frozen live crabs. In addition, raw crabs are not disinfected at high temperature, leaving microorganisms and parasites easily, which may not be completely eliminated after freezing. Moreover, the meat quality is easy to deteriorate and the taste is not very good. Although the price is cheap, it is not recommended to buy it.

The film "The Deadest Fishing" explains the danger of the king crab fishing scene!

7. Market analysis One of the factors that affect the price of king crab is the size of specifications. The larger the size of king crab, the higher the unit price per kilogram. There is also the purchase area. In hotels in first-tier cities such as Beijing, Shanghai, Guangzhou and Shenzhen, it is normal that the price of king crab is several times or even ten times higher. Now the logistics cold chain is relatively developed, and mail order through the network is a good choice.