What is the difference between black crab and blue crab? What is the difference between blue crab an

The difference between black crab and green crab is that there are only green crabs in Zhoushan and no black crabs. The blue crab is a large crab that grows in parallel streams of sea water and river water. Its claws are large and powerful, and the overall color is uniformly blue, hence the name blue crab.

However, in the past, it was called "box crab" or "box crab". There are fewer and fewer wild crabs now, and most of them are farmed in captivity.

1. Belong differently.

Blue crab is a phylum of arthropods.

The carapace of the blue crab is usually oval-shaped, with a flat body and no hair, and it often appears in mudflats and shallows near the coast, and enters the mud with the ebb and flow of the tide on weekdays, and likes places where fresh water flows out. The hairy crab is a family of bow crabs, the back of the head and thorax of the hairy crab is covered with a layer of hard carapace, and the color of the dorsal carapace is usually black-green or ochre yellow.

2. Different habitat habits.

Blue crabs like to live in the return mouth of rivers and streams, or in the mudflats where the sea and fresh water buffer exchange, and usually live in burrows during the day, and start to forage at night. The habitat habits of hairy crabs vary according to different ecological conditions, and when there is enough food, hairy crabs will live in burrows in order to avoid enemies; When the environment is not suitable for hairy crabs to build burrows, hairy crabs will choose to inhabit in stone crevices and aquatic grasses; Hairy crabs travel during the day and at night, feeding on dead animals or grains.

Black crabs are black, blue crabs are green, followed by differences in texture and meat quality.

There should be no difference, probably the biggest difference is that it tastes different.

We only have the blue crab in Zhoushan, not the black crab. Blue crab is a kind of large crab that grows in the parallel flow of sea water and river water, the double chela is huge and powerful, and the whole is uniform blue, so it is called blue crab, but it used to be called more or cockle, or cockle crab, the wild one is less now, and the majority of the breeding ones are cultivated.

Crabs are divided into meat crabs, water crabs, and cream crabs: meat crabs and cream crabs: male and female crabs in blue crabs.

1. Meat crab is beautiful with meat, and the crab meat of high-quality meat crab is plump, smooth and sweet, and has a fragrant feeling.

2. The paste of the cream crab is the ovary of the female crab, the paste of the cream crab is dense, bright red and translucent after steaming, smooth and delicious.

Appearance difference.

1 Blue crab: The carapace and appendages of the blue crab are cyan-colored, and the carapace is smooth on the outside and slightly convex, among which the back is obvious"h"The carapace of the head and eyes has 4 protruding triangular teeth above it, and the crab crows vary in size with spikes. Hairy crabs:

The back shell of the hairy crab is cyan, the belly is white, slightly yellow or brown, and the tip of the claw of the hairy crab in Yangcheng Lake is golden yellow, the claw is strong and powerful, and it can crawl freely on the surface of the floor tiles; Hairy crabs have fine short hairs on their crab crows.

The difference in fullness.

2 Blue crab: The fullness of blue crab is easy to judge, because blue crab is a kind of meat crab, even if it is a small blue crab, the meat quality is also full, so as long as the weight reaches a certain level, the blue crab is full. Hairy crabs:

Hairy crab is a kind of crab that can easily judge the fullness of the meat, you only need to press the thinnest leg of the hairy crab, if it is full, it means that the meat is very full, if it is relatively hollow, it means that the meat of the hairy crab is not full enough.

Sexual maturity is different.

3 Blue crabs: Blue crabs enter the period of sexual maturity as long as a single head reaches a certain weight in areas with the right temperature, so there will be times of sexual maturity throughout the year. Hairy crabs:

The sexual maturity period of hairy crabs is in September of the lunar calendar every year, and the nine females and ten males are talking about eating hairy crabs with crab roe in September of the lunar calendar.

Nutritional content differences.

4 Blue crab: Blue crab is rich in protein, also contains some carbohydrates, is the sweet taste of blue crab**, also contains some unsaturated fatty acids, at the same time the content of vitamin A and carotene is very high, and the mineral content is also very high. Hairy crabs:

The protein and fat content of hairy crabs is higher than that of blue crabs, but the content of carbohydrates is lower than that of blue crabs, and the mineral content is also high, mainly the content of vitamins and carotene is lower than that of blue crabs.

Difference 1: **Different. Although Sanmen blue crab is as famous as Yangcheng Lake hairy crab, there are significant differences between the two. Hairy crabs have always been much more expensive than blue crabs, and one hairy crab can buy almost two blue crabs.

Difference 2: The living environment is different. The Sanmen blue crab lives in the sea and is the fattest of all sea crabs. The hairy crabs in Yangcheng Lake live in freshwater lakes and belong to the list of river freshmen.

Difference 3: The taste is different, the fresh and sweet taste of Sanmen blue crab is incomparable with other crabs, because blue crab is seafood, and hairy crab is river fresh, so hairy crab does not have the unique taste of blue crab.

Difference 4: Different sizes. In terms of size, the Sanmen blue crab is significantly larger than the hairy crab in Yangcheng Lake, so one blue crab is enough to eat; Moreover, the blue crab has a strong ability to tolerate dryness, as long as there is a small amount of water in the gill cavity after leaving the water, and the gill filaments are moist, it can survive for several days or dozens of days.

Now is the season when hairy crabs are abundant, but everyone should pay attention to patients suffering from colds, fever, stomach pain and diarrhea, digestive tract inflammation or ulcers, cholecystitis, gallstones, hepatitis active period should not eat crabs. Be sure to pay attention to the taboos of consumption! Sea.

Blue crab is a pike crab family in the phylum Arthropod, the carapace of blue crab is usually oval shape, the body is flat and hairless, often found in mudflats and shallows near the coast, and prefers places where fresh water flows.

The difference between crabs in the spring and crabs in other seasons is as follows: Spring is not the best time to eat crabs. Spring is a season when crabs have just woken up from hibernation, so crabs in this season are the thinnest, so crabs in spring can not be eaten, in fact, the best season to eat crabs is in late summer, when crabs are a period of time before spawning, and crabs at that time are fat and strong, so they are most suitable for eating crabs.

If you must eat crabs in spring, it is best not to eat crabs after mating, because the female crabs after mating can be seen, that is, there are particularly obvious black and yellow granular fertilized eggs inside the umbilicus, and the taste becomes worse. Some merchants put the female crabs on the market after mating in salinity waters, causing a bad impact.

The difference between hairy crab and blue crab is the difference in meat quality and taste.

Taste: The meat of blue crab is more sweet and tender.

The meat of hairy crabs is a bit salty and sweet.

Nutritional value: Blue crab is rich in protein and carbohydrates, unsaturated fatty acids, vitamin A, carotene, and minerals.

Hairy crabs are higher in protein and fat than blue crabs, lower in carbohydrates, vitamins and carotene, and high in minerals.

There are a few main differences between Kun Crab and Blue Crab:

1.And**: Kun crab is a hairy crab farmed in Kunshan, Jiangsu, while blue crab lives in the sea. Compared with blue crabs, the ** of Kun crab is usually higher, and the ** of a hairy crab can almost buy two blue crabs.

2.Appearance: The carapace and appendages of the crab are yellow-brown, while the carapace and appendages of the blue crab are all cyan-colored, the carapace is smooth on the outside and slightly convex, among which there are obvious H-shaped dents on the back, there are 4 protruding triangular teeth on the carapace of the head eye, and the crab crow is of different sizes with spikes.

3.Nutritional value: Kun crab contains more vitamin A, which is helpful for keratinization, rickets in children and osteoporosis in the elderly can also play a role in supplementing calcium.

To sum up, there are obvious differences between Kun crab and blue crab in terms of **, **, appearance and nutritional value.

Kun crab can provide better protein. Kun crab is a hairy crab bred in Kunshan, Jiangsu, hairy crab contains more vitamin A, which is helpful for keratinization, rickets in children, and osteoporosis in the elderly.

It can also play a role in calcium supplementation. The carapace and appendages of the blue crab are cyan-colored, the carapace is smooth on the outside and slightly convex, with a distinct H-shaped indentation on the back, and 4 prominent triangles on the carapace of the head eye.

Teeth, crab crows vary in size with spikes.

Blue crab, the name of traditional Chinese medicine. It is the whole of the barracuda crab family saw-edge blue crab. It is distributed in Zhejiang, Fujian, Taiwan, Guangdong, Guangxi and other coastal areas. Artificial breeding has been carried out. It has the effect of removing blood stasis and relieving pain, diluting water and reducing swelling, nourishing and strengthening.

Summary. 1. The origin is different. Brown crabs are mainly produced in the Atlantic Ocean and other seas, and blue crabs are mainly produced in Guangdong, Guangxi, Hainan and other regions.

1. The origin is different. Brown crabs are mainly produced in the Atlantic Ocean and other seas, and blue crabs are mainly produced in Guangdong, Guangxi, Hainan and other regions.

2. The edible parts are different. Brown crabs mainly eat meat and yellow, and blue crabs can be eaten except for inedible gills, crab intestines, crab stomachs, crab hearts, etc.

3. Taste. The meat of the large brown crab is thicker, and the meat of the blue crab is fat. Note that when buying blue crab and large brown crab, you must buy fresh, as fresh will affect the taste.