CATDOLL : CATDOLL: Is the swimming crab freshwater or saltwater?

1. Is the swimming crab freshwater or seawater?

Swimming crabs are marine species and cannot survive in freshwater environments. When breeding swimming crabs, you can choose ponds in coastal areas as breeding sites, or you can select healthy and complete crab seedlings for breeding. You can also feed the swimming crabs twice a day and change the water every three days to allow the swimming crabs to grow healthily.

What kind of species is swimming crab? 1. Marine species

Swimming crabs are marine species and cannot survive in freshwater environments. Therefore, when breeding swimming crabs, you can choose coastal ponds or mudflats as breeding sites. You can also clean the ponds before breeding and set up wire mesh at the drainage inlet to prevent swimming crabs from escaping.

2. Crab seedling selection

When breeding swimming crabs, you also need to pay attention to the selection of crab seedlings. First, you can look at the body shape and choose crab seedlings that are complete and uninjured for breeding. You can also look at the body shape and choose crab seedlings that are active and have strong claws for breeding. Before releasing the crab seedlings, you can also disinfect them to help them grow healthily.

3. Provide food

During the breeding process, swimming crabs need to be provided with feed twice a day. The feed can be made by mixing grains, wheat bran and other foods with fish meal, shellfish meat, shrimp and other foods, making them into balls, and then feeding them to swimming crabs. The amount of feed needs to be controlled at 8% of body weight to avoid excessive accumulation of food in the pond and affecting the water quality.

4. Disease prevention

In the process of breeding swimming crabs, measures can also be taken to prevent diseases. It is best to change the water for swimming crabs every three days to keep the water clean. You can also add immune polysaccharides to the food of swimming crabs to improve their immunity. You can also add disinfectants to the pond to prevent bacteria from forming in the water.

2. Compared with hairy crabs and swimming crabs, which one can be eaten after death?

Many friends would ask: Which crab is edible after death, the hairy crab or the swimming crab? The answer is the swimming crab.

Today, let me explain to you why swimming crabs can be eaten after they die, but hairy crabs cannot be eaten after they die.

First of all, we need to understand that swimming crabs belong to sea crabs, while hairy crabs belong to river crabs. As long as the dead sea crabs are frozen, they can be eaten. Swimming crabs are sea crabs, and as long as the swimming crabs are frozen after death, they can be eaten. However, hairy crabs belong to river crabs, and as long as river crabs are dead, they cannot be eaten regardless of whether they are frozen or not.

Why can't we eat dead hairy crabs? It's because dead hairy crabs produce a histamine-like substance in their bodies. Histamine-like substances are toxic. If people eat dead hairy crabs, they will experience diarrhea, nausea, and vomiting. Therefore, dead hairy crabs cannot be eaten.

Next, let's learn how to cook swimming crabs and hairy crabs. The most common way to eat them is to steam them. Steam them in water, add onions and ginger, and steam them for ten minutes. Then make your own dipping sauce, or eat them directly. This way of steaming hairy crabs or swimming crabs is very delicious.

In fact, we can also try to make crab pot at home. The ingredients we need to prepare are crab, chicken feet, shrimp, potatoes, rice cake, onion, red and green pepper. First, we need to put all the ingredients in a small bowl. These ingredients are: star anise, cinnamon, fennel, dried chili, onion, ginger, and garlic. Cut the chicken feet and soak them in cooking wine and stir-fry to remove the fishy smell. Cut the swimming crab into small pieces, coat the swimming crab with starch, fry it in a pan, and pull the shrimp thread off. Fry the spices and bean paste in a pan, add chicken feet, sweet noodle sauce, dark soy sauce, light soy sauce, oyster sauce, and stew for another ten minutes, add the side dishes and fried swimming crab, and finally put the red and green peppers, and the delicious home version of crab pot is ready.

That’s my answer.

Swimming crabs are the kind that can be eaten even after they are dead, because they are sea crabs. Sea crabs can be eaten even after they are dead, but river crabs cannot be eaten. After a river crab dies, there will be a large amount of toxins in its body, so it cannot be eaten.

I think swimming crabs can be eaten after they die because many people believe so.

Chinese hairy crab. Many people choose to eat crabs in winter every year because it can satisfy their taste buds.

3. What do we commonly call crabs?

What we commonly call crabs generally refer to sea crabs. Because sea crabs are cheap, most of the crabs sold on the market are sea crabs.

The swimming crab is named after its spindle-shaped carapace. There are three protrusions in the center of the carapace, so it is also called the "three-wart swimming crab". The male has a pointed and smooth navel, long claws, and a green shell surface; the female has a round navel with fluff, and the shell surface is ochre or spotted. The meat of swimming crabs is fat and delicious, with high nutritional value and economic value, and is suitable for temporary breeding and fattening in seawater. The carapace is spindle-shaped, almost twice as wide as it is long; the surface of the carapace is covered with fine particles, with two horizontal ridges and three wart-like protrusions; the forehead has two sharp teeth; the front side edge has nine sharp teeth, and the last teeth are long and thorn-like, protruding outward. The claws are thick and longer than the width of the carapace; the long segments are prismatic, and the male long segments are slender, with four sharp spines on the front edge.

The cephalothorax is tea green; the back of the chelicerae and the walking legs are bright blue with white spots; the knuckles of the walking legs and chelicerae are red.

Thalamita prymna

It lives in shallow waters of coral reefs or rocky reefs and is a common species in intertidal zones. The back of the body is mainly dark green, so it has an excellent protective color when it appears among green seaweed. The last pair of walking legs of the species of the Portunidae family are specialized to be flat and round, suitable for paddling and swimming, so this type of crab is also called a swimming crab.

Swimming crabs are sea crabs. River crabs are smaller and darker in color. Crab is a general term for these animals that look the same but live in different environments. Haha, there are so many varieties of crabs, too many.

Crab refers to swimming crabs. River crabs are also known as hairy crabs. River crabs are more delicious than sea crabs, and swimming crabs are more delicious!

In inland Shandong, it refers to river crabs. Of course, the big crabs from the sea are delicious, especially those with crab roe, which are particularly fragrant.

The so-called crab is a general term for all crabs, that is, the crabs with eight legs and two claws.

4. How are crabs classified?

According to their place of origin, they can be divided into four types: river crabs, river crabs, lake crabs and sea crabs.

River crabs produced in Panshan County, Panjin, Hebei, and Tianjin are the most famous. River crabs produced in Nanjing are the best. Lake crabs produced in Liangzi Lake in Wuhan, Hubei, Yangcheng Lake in Suzhou, Jiangsu, Weishan Lake in Shandong, and Gucheng Lake in Gaochun, Nanjing are of better quality.

Sea crabs are distributed in the seas of northern and southern China. Generally, from south to north, March to May and September to October are the peak seasons for production, and the production in Bohai Bay and Liaodong Peninsula is relatively high from April to May. Swimming crabs are one of China's important export products, and are exported to countries and regions such as Japan, Hong Kong, and Macau. Export ports: Liaoning, Hebei, Tianjin, Shandong, Jiangsu, Zhejiang, and Fujian.

1. Gucheng Lake hairy crab

Produced in Gucheng Lake in Gaochun District, Nanjing City, it has always been known as the king of crabs. The waters of Gucheng Lake are hundreds of miles in radius, with rippling blue waves, lush aquatic plants, and extend wide. The crabs grown here are particularly unique in shape and meat quality in the crab family. The meat is fat, tender, delicious and nutritious.

2. Yangcheng Lake hairy crab

Produced in Yangcheng Lake in Suzhou, Jiangsu Province, it is a famous Chinese specialty known both at home and abroad, and is also China's first well-known trademark for aquatic products. Yangcheng Lake hairy crabs have always been known as the best crabs. Yangcheng Lake is rippling with blue waves, the water is as pure as a mirror, the water is deep and hard, the water grass is lush, the extension is wide, and the climate is pleasant. It is the most ideal "crystal palace" for crabs to settle and grow.

3. Yangtze River hairy crab

In the waters from Anqing to Wuhu in Anhui Province, there are natural wild hairy crabs, which are of excellent quality and are the best crabs. However, since the survival rate of wild crab seedlings is very low, the output is extremely limited and the cost of fishing is also very high, the price is very expensive.

4. Liangzi Lake hairy crab

The hairy crabs from Liangzi Lake in Ezhou City, Hubei Province, are fully ecologically farmed and are products of origin. "Poems and prose about Jiangxia are written throughout the ages, and crabs are growing fat by the Liangzi Lake." Two years ago, Yu Qiuyu improvised a poem at the opening ceremony of the cultural festival, which made the Liangzi Lake crabs famous. Liangzi Lake is the second largest lake in Hubei Province, and two-thirds of its surface is within the territory of Jiangxia District. The lake water is clear and the water quality meets the second-level standard. The crabs produced here are large, white-bellied, fresh and delicious.

5. Tianjin Purple Crab

This is a type of Chinese mitten crab. It is small, only the size of a coat button. When you peel off the crab shell, the crab roe is purple like pig liver, and turns orange-red when cooked. It tastes very delicious. Purple crabs are produced in the cold winter, so they are often used in mixed hot pot.

6. Laizhou Crab

It is a famous specialty of Ye County. Because Ye County was the seat of Laizhou Prefecture in ancient times, the name of Laizhou crab has been passed down to this day. There are three raised parts on the back of Laizhou crab, and each of the front side edges has 9 serrations. The last tooth is particularly long and shaped like a shuttle, so it is commonly known as "three-spotted swimming crab".

7. Swimming Crab

Liaoning Xingcheng swimming crab: The meat of this crab is white, tender, and the roe is like solidified fat. It tastes delicious and is the best quality sea crab.

8. South Lake Crab

Produced in the Hangzhou, Jiaxing and Lake water network areas of Zhejiang Province, they are famous for their large size and delicious meat. In the past, the lake crabs here were naturally reproduced and caught and put on the market during the flood season every year. Artificial reproduction and stocking have begun, and have achieved certain results.

9. Junshan Lake hairy crab

The Junshan Lake clearwater hairy crab is famous for its "green back, white belly, golden claws and yellow hair, large size, delicious and tender taste". It is a well-known domestic aquatic brand and has won the titles of King and Queen of Crabs in the Poyang Lake water system.

10. Qiushui Lake River Crabs in Minquan County

Minquan river crabs are pure natural, original, pollution-free, high quality, large and meaty, with yellow hair and golden claws, full of fat, fragrant and delicious, and rich in nutrition. Therefore, Minquan County was named "China's River Crab Hometown" by the China Fisheries Association, and is well-known in Beijing, Shanghai, Changzhou, Suzhou, Xi'an, Wuhan, Tianjin, Zhengzhou and other cities.

11. Panjin River Crab

Panjin river crab, scientifically known as Chinese mitten crab, is called river crab in the north and hairy crab in the south. It belongs to the phylum Arthropoda, class Crustacea, order Decapoda, suborder Reptilia, tribe Brachyura, family Sphaerochelys, genus Eriocheir. It is a famous freshwater crab in my country and has the highest production among crabs in my country.

Reference source: Baidu Encyclopedia - Crab

Blue crabs, hairy crabs, and swimming crabs can also be classified

According to the place of origin, they can be divided into three types: river crabs, river crabs, and lake crabs. River crabs produced in Hebei and Tianjin are the most famous, river crabs produced in Nanjing are the best, and lake crabs produced in Yangcheng Lake in Changshu, Jiangsu and Weishan Lake in Shandong are of better quality. There are many types of crabs. There are about 600 types of crabs in my country, including swimming crabs, blue crabs, frog crabs, Guan Gong crabs, etc. Due to their different geographical distribution, they are also divided into different grades. The first grade is lake crabs, such as Yangcheng Lake and Jiaxing Lake; the second grade is river crabs, such as Jiujiang and Wuhu; the third grade is river crabs; the fourth grade is stream crabs; the fifth grade is ditch crabs; the sixth grade is sea crabs

When choosing crabs, choose those with dark green color, with the exception of flower crabs and prince crabs, which are not dark green.

The crabs should be shiny and of uniform size. The navel of the inner shell of meat crabs is pointed, while the navel of the inner shell of lamb crabs is round and pointed. There is a folk saying: Eat lamb crabs in September and meat crabs in October. Flower crabs, prince crabs, hairy crabs, etc. are the best to eat in spring. Now you know what crabs to eat in different seasons and months.

In the Bohai Sea area, crabs are the fattest in April and May, and shrimps are the best in July, August and September. It is the harvest season, fresh and cheap. Seafood includes crabs, shrimps, shellfish, and various marine fish.

The hairy crab family divides crabs into six categories: the first is lake crabs, with Yangcheng Lake being the best, followed by Hongze Lake; the second is river crabs; the third is river crabs; the fourth is stream crabs; the fifth is ditch crabs; and the last is sea crabs. Even sea crabs can be regarded as the best among all dishes. Many high-end restaurants in China have delicious hairy crab dishes, but what I appreciate most is the Yangcheng Lake hairy crabs. Yangcheng Lake hairy crabs are not only large, plump, and nutritious, but also have green backs, white bellies, golden claws, and yellow hairs, which are the characteristics of Yangcheng Lake hairy crabs. They are the best in the crab family and are famous both at home and abroad.

Eating too much will cause diarrhea!