How strong is the survivability of hairy crabs that have invaded many European countries?

Hairy crabs can survive in Europe's harsh locations, such as sewers.

Very strong. Because hairy crabs are very adaptable to the environment and have amazing reproductive ability, they have a very strong ability to survive.

Hairy crabs are cumbersome to eat, and there are not many edible parts, which is a waste of time for Americans who have a relatively simple diet and cooking. The food culture of the Chinese pays attention to exploring the essence of food, and tasting hairy crabs is the embodiment of this culture.

Because Americans don't like to eat hairy crabs, in fact, people in many countries around the world think hairy crabs are terrible and dare not try them.

There are a lot of foodies in China, and they also know how to make hairy crabs delicious. After all, there are not so many hairy crabs in China, so they are still good food.

Haha, do you still need to ask? Chinese love to eat hairy crabs, which are still very expensive, for Americans, they do not eat, and hairy crabs have no natural enemies in American waters.

Because Americans don't eat hairy crabs! Just as Americans don't eat carp, carp is also flooding the United States, and it can only be said that they won't eat it! I don't know how to eat!

Because Americans think that hairy crabs have some organs that are unhealthy, and they can't eat them, which is like China, there are so many ways to cook them.

Because Chinese are particularly yearning for seafood food, especially for hairy crabs, expensive and taste is also very nice, rare is expensive, there are many hairy crabs in the United States.

This is mainly because the United States does not eat ah, it is very troublesome, Chinese like to eat, and will use a variety of ways to cook.

It is also very cheap in China, and there is no need to import it.

Chinese hairy crabs began to "emigrate" to Europe as early as 1900. In 1912, for the first time, there was an official report in Germany that this hairy crab endemic to China had been discovered. In 1933, German scientists investigated and believed that hairy crabs "migrated" from China to Europe through the ballast water of merchant ships.

This "eat-everything" eight-legged warrior began to run rampant in the rivers of Europe, posing a serious threat to the survival of native species, thus becoming the only freshwater crab species in Germany. In the middle of summer, mature hairy crabs living in the Elbe River and other waters begin to migrate in a "carpet" manner, traveling thousands of miles to the North Sea in preparation for the succession the following spring.

Racial habits, just as we don't like to eat snails.

A few days ago, a few Chinese hairy crabs took advantage of the summer afterglow to quietly advance towards the German Federal Reichstag in Berlin. This caused some German tourists to be "alarmed". After they called the police, these foreign "intruders" were "caught" by animal protection agencies.

The fisherman Schroeder drove his fishing boat to the Elbe. When he stopped the boat and dragged the basket onto the boat with his assistants, it was not the eels they wanted to catch, but dozens of hairy crabs wielding double pincers.

Hairy crabs crawl 12 kilometers a day as "armored animals" and are good at digging burrows and destroying dams. They also destroy fishing tools and eat weak fish and shrimp in their nets. Even some industrial infrastructure has become a target for their destruction.

According to the World Nature** report, hairy crabs in Germany alone have caused losses of up to 80 million euros.

Chinese mitten crab (commonly known as hairy crab. Despite their staggering price in China, they are actually a very survivable arthropod.

The main food of the Chinese mitten crab is a variety of aquatic plants, but it also feeds on the larvae of various insects, snails, shellfish, small fish and carrion, and is a typical omnivore. They occupy the niche of many native species, often crowding out their competitors in water bodies where food is scarce. According to the report of residents of Greenwich in London, England, Chinese mitten crabs have been seen departing from the Thames River to the bustling business district; There have also been reports of Chinese mitten crabs occupying private swimming pools.

Of course, the Chinese mitten crab is not strong enough to migrate from China across the Eurasian continent to Europe, and it is believed that they traveled to Europe on European merchant ships at the beginning of the last century. Of course, the way they stay abroad is not very glamorous, after all, it is the identity of stowaways. When the ship is empty, the center of gravity of the hull is high, and it is easy to capsize in the event of strong winds and waves.

To solve this problem, an empty vessel will load ballast in the ship to lower the ship's center of gravity, and water is one of the most commonly used ballasts, also known as ballast water. As a ballast, ballast water is not very dense, but the biggest advantage is that it can be loaded and unloaded at any time at any time – but when loading ballast water it can bring in a large number of local species, and when unloading, it will bring these plants and animals to the corresponding places. The Chinese mitten crab was smuggled to Europe by hiding in the ballast water.

Moreover, the main reason for the proliferation of Chinese mitten crabs in Europe is the lack of natural predators. Like other crabs, they were well protected by thick "armor". In Europe, only some native fish such as eels, perch and yarrow fish will prey on the Chinese mitten crab that has recently changed its shell and is still soft, and the heron will occasionally open the meat with hairy crabs.

However, the lack of hard-shell protection for Chinese mitten crabs was short after all, and they soon returned to a near-invincible state.

In fact, in China, there are not many natural enemies of the Chinese mitten crab, except for humans. And the German "foodie" means to eat only meat without bones (reference.

On August 18, 2013, Juhuasuan launched the pre-sale of German hairy crabs, attracting nearly 20,000 consumers to join the tour in just a few days, and a total of more than 300,000 hairy crabs were booked, with a total transaction value of more than 9 million yuan.

Because hairy crabs are live, they require a series of live animal and plant quarantine procedures when imported, and the scale is so large that our plans seem overly optimistic. At the same time, the pre-sale model of Juhuasuan and the traditional ** method also need more time to connect. Juhuasuan President Xing said.

Xingluo revealed that after the application submitted by the German Ministry of Agriculture is approved, Juhuasuan will also launch **, so that everyone can taste the pure German hairy crab.

Yesterday, Juhuasuan said that due to the lack of consideration for the first large-scale import process of German hairy crabs, the previously launched ** has not been able to be shipped on time as originally planned. For this reason, Juhuasuan apologized to consumers and promised to return the full payment of 9 million yuan to consumers who placed orders, and compensate consumers with an additional 30% of the order amount in cash this week, with an estimated total compensation of nearly 3 million yuan.