How to store crabs alive for a longer period of time: low-temperature preservation, water preservation, towel covering.

1, low-temperature preservation

Buy back the crab with a rope tied to reduce its physical exertion, and then put the bundled crabs in a foam box equipped with ice packs, and covered with a layer of thatch on top of the heat preservation, pay attention to the foam box to be placed in a cool place, the crab in this environment can generally be preserved for 7 days.

2, water preservation

Put the crabs in the inner wall of the smooth high plastic bucket, and then pour water into the bucket, pay attention to the depth of water can not be over the body of the crab, so as to avoid the crabs can not breathe properly, resulting in early death, in addition to the crabs should be replaced once a day with clean water.

3, towel cover

To re-tie the crab, reduce physical exertion, and then put it inside the container or plate, and wet towel to cover the top of the crab, and then put it into the refrigerator to chill, pay attention to the towel can not be too thousand, need to maintain moisture.

Classification and Characteristics

The crab is a common name for all short-tailed and crooked-tailed clans, with about 4,700 species in the world and 800 in China, and the common ones are the genera of Guan Gong Crab, Pike Crab, Creek Crab, Begging Crab, and Mitten Crab. Although the genera of porcelain crabs, cicada crabs, stone crabs, hermit crabs, coconut crabs, etc. in the suborder Crooked-tailed crabs are also called crabs, they are different from the real crabs in the suborder Short-tailed crabs. The short-tailed crustaceans of the order Decapoda, especially the species of Short-tailed Pai, include some other types, such as the species of Crooked-tailed Pai, which has about 4,500 species, and they can be found in all the oceans and seas, in freshwater, as well as in the land.

There are many types of crabs, and there are about 600 types of crabs in China, including pike crabs, green crabs, frog crabs, and Guan Gong crabs, etc. Because of the different geographic locations of the distribution of the crabs, there is a hierarchy, with the first class being the lake crabs such as Yangcheng Lake and Jiacheng Lake, and the second class being the river crabs such as Jiujiang River and Wuhu Lake, and the third class being the river crabs, and the fourth class being the river crabs, and the fifth class being the gully crabs, and the sixth class being the sea crabs.