CATDOLL : CATDOLL: What is the difference between hairy crabs and swimming crabs?

What is the difference between hairy crabs and swimming crabs?

1. Both crabs are delicious because they are not the same kind. The swimming crab is a sea crab. When it is steamed on the fire and served with vinegar and ginger juice, the taste is original. Freshwater hairy crabs need to be fried or boiled with ingredients. The cream is rich and delicious. But if both crabs are steamed and eaten at the same time, if you eat the swimming crab first and then the hairy crab, you will feel that the hairy crab is always unfamiliar. In fact, it is already cooked. So different ways of eating are different. As long as they are done right, they are all delicious.

2. Compared with hairy crabs, hairy crabs are thicker, while swimming crabs are slightly more expensive. But in terms of nutritional value, swimming crabs are slightly inferior. The meat of swimming crabs is tender and white, rich in protein, fat and various minerals. Every 100 grams of meat contains 14 grams of protein, 2.6 grams of fat and other nutrients. The crab meat of hairy crabs is salty and cold, which has the effects of clearing heat and removing blood stasis, nourishing yin, and can be used to treat injuries and fractures. Every 100 grams of hairy crabs contains 17.5 grams of protein, 2.8 grams of fat, 182 milligrams of phosphorus, 126 milligrams of calcium, and 2.8 milligrams of iron. In addition, crabs contain more vitamin A, which can also supplement calcium for rickets in children and osteoporosis in the elderly.

1. Different families and genera. The Chinese hairy crab belongs to the genus Mitten Chelicerus of the phylum Arthropoda, while the swimming crab is a marine arthropod of the genus Swimming Crab of the phylum Arthropoda.

2. Different nicknames. Chinese hairy crabs can also be called river crabs, clear water crabs, crabs, hairy crabs, etc., and swimming crabs can also be called sea crabs, water crabs, three-spot crabs, flying crabs, etc.

3. Different origins. Swimming crabs are produced in Japan, the Malay Archipelago, North Korea, Guangxi, Zhejiang, Shandong Peninsula and other places, while hairy crabs are distributed in the northern part of Asia, China and the west of North Korea. Both swimming crabs and hairy crabs are common aquatic products in daily life, among which hairy crabs are a long-standing delicacy in my country. At the same time, the meat of swimming crabs is tender, white and nutritious, and is also favored by consumers. So, what is the difference between swimming crabs and hairy crabs? The differences between swimming crabs and hairy crabs are introduced as follows.

Figure: Swimming crabs 1. Differences between families and genera 1. Swimming crabs: Swimming crabs are marine arthropods belonging to the animal kingdom, the arthropoda phylum, the subphylum of crustacea, the class of malacida, the subclass of eumalacida, the order of decapods, the family of swimming crabs, and the genus of swimming crabs. 2. Hairy crabs: Hairy crabs are freshwater arthropods belonging to the animal kingdom, the arthropoda phylum, the subphylum of crustacea, the class of malacida, the subclass of eumalacida, the order of decapods, the suborder of gastropods, the family of arch crabs, the subfamily of arch crabs, and the genus of mitten crabs. 2. Differences in nicknames 1. Swimming crabs: The scientific name of swimming crabs is three-spotted swimming crabs, and their nicknames are pistol crabs, sea crabs, sea crabs, sea worms, water crabs, door crabs, small door crabs, scorpions, covered fish, three-spot crabs, child crabs, flying crabs, smoke crickets, etc. 2. Hairy crabs: The scientific name of hairy crabs is Chinese mitten crabs, and their nicknames are river crabs, hairy crabs, clear water crabs, hairy crabs, crabs, etc.

Figure: Chinese hairy crabs III. Differences in origin 1. Swimming crabs: Swimming crabs are produced in Japan, North Korea, the Malay Archipelago, the Red Sea, and Guangxi, Guangdong, Fujian, Zhejiang, Shandong Peninsula, Bohai Bay, Liaodong Peninsula and other places in mainland China. 2. Chinese hairy crabs: The natural distribution area of ​​Chinese hairy crabs is mainly in northern Asia, western North Korea and China. In my country, it is distributed from the Yalu River estuary in Liaoning in the north to the Jiulong River in Fujian in the south and the Three Gorges Estuary in Yichang, Hubei in the west. With the artificial cultivation and release of crab seedlings, this crab has spread all over the country, but the quality is the most famous for the hairy crabs in Yangcheng Lake in the lower reaches of the Yangtze River and the Shengfang crabs in Hebei. IV. Differences in habits 1. Swimming crabs: Swimming crabs live in the ocean. After leaving the high-salinity and high-oxygen environment, the survival rate is greatly reduced. The adapted salinity is 13-38, the optimal growth salinity is 20-35, and the adapted salinity for wintering is 28-35. If the salinity is lower than 8 or higher than 38, they stop eating and moving, and all die after one day. 2. Hairy crabs: Hairy crabs often live in burrows on the muddy banks of rivers, lakes and ponds, hiding during the day and coming out at night. They feed on animal carcasses or grains. In autumn every year, they grow plump and often return to the nearshore to reproduce. The eggs carried by the mother hatch between March and May of the following year. The young undergo multiple metamorphosis and develop into young crabs, then swim upstream to continue growing in fresh water.

There is a big difference between hairy crabs and swimming crabs. They belong to two different crab species. Swimming crabs are a kind of sea crabs, while hairy crabs are a kind of river crabs. One is seafood and the other is river seafood.

The hairy crab is a river crab, while the swimming crab is a sea crab; the hairy crab is small, while the swimming crab is large; the hairy crab is expensive, while the swimming crab is cheap; the Chinese prefer hairy crabs, while foreigners prefer swimming crabs. The nutritional value is similar.

Types of crab

Blue crab, river crab, stone crab, flower crab, king crab, etc.

1. Blue crab: Also known as saw-edge blue crab, the blue crab has a very hard, oval shell, a firm chest, and two very hard claws, like oars, so some people call it "juoyaozi".

2. River crab: Its scientific name is Chinese mitten crab. It grows in fresh water but reproduces in sea water. It usually hides on the banks and rocks of rivers, lakes and ponds.

3. Stone crab: also known as bamboo crab and stream crab, it likes to live under rocks in streams all year round.

4. Flower crab: also known as deep-sea swimming crab. Its shell is like a swimming crab, so it is called swimming crab. Its claws are sharp and very strong.

5. Bread crab: also known as steamed bun crab, it has a few soft hairs on the side, its claws are asymmetrical in shape, and its overall size is small. The claws at the rear end are rectangular, and the claws at the very back are triangular.

crab:

It is the general name for the Brachyura in the order Decapoda. There are about 4,700 species in the world and about 800 species in China. Common genera include male crabs, swimming crabs, stream crabs, fiddler crabs, and mitten crabs. Although the porcelain crabs, cicada crabs, pseudo-stone crabs, hermit crabs, and coconut crabs in the order Anomalisaurus are also called crabs, they are different from the true crabs in the order Brachyura. The body of a crab is divided into the cephalothorax and the abdomen. The back of the cephalothorax is covered with a cephalothorax, and the shape varies from species to species. The first and second pairs of antennae are located in the center of the forehead, and there are stalked compound eyes on the outside; the mouthparts include a pair of mandibles, two pairs of maxillae, and three pairs of maxillopods. There are 5 pairs of thoracic legs on both sides of the cephalothorax. The abdomen is degenerate, flat, and zigzag on the ventral side of the cephalothorax. Most crabs are marine, with the most species in tropical shallow seas.