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Japan legislates to ban the sale of crayfish! How does this invasive species achieve a counterattack in China?

author:Scientific black holes

On the eve of the 2018 World Cup in Russia, a special train of crayfish departed from Hubei, China, and left For Moscow in Manzhouli, and eventually they will appear in restaurants and bars in various competition cities for fans to eat while watching the game, of course, this is not the first time that Chinese crayfish have gone abroad, and Russia is not the main market for Chinese crayfish.

Japan legislates to ban the sale of crayfish! How does this invasive species achieve a counterattack in China?

Although the Chinese team did not go to Russia, but the Chinese fans have gone, the crayfish is still very marketable, ball games, beer, crayfish, everything is just right.

Crayfish has now become a delicacy on our table, of course, eating crayfish is mainly in the night market, eating is also a trend, with people's love and recognition, crayfish began to rise, the price also began to soar.

Recently, everyone should be concerned about a news "Japan legislation bans the sale of crayfish", Japan passed the latest version of the "Alien Biological Law", which specifically mentions the Mississippi red-eared turtle and crayfish, prohibiting the sale and release, of course, there is no special restriction on individuals as pets.

Japan legislates to ban the sale of crayfish! How does this invasive species achieve a counterattack in China?

No matter how much we like to eat crayfish, but we can't change the fact that it is an exotic species, of course, we like to eat crayfish, and Japan's ban on selling and releasing crayfish is not much related. Food is already good, typical such as the invasion of North America in Asia, body fat such as piglets are not also not eaten?

What kind of animal is a crayfish?

Although it is called "crayfish", it actually has little to do with lobsters, the real name is protocrayfish, and it is biologically classified as a member of the genus Decapodae- Crawfish family - Protocrayfish, and there is no subspecies. The lobster generally refers to the decapod - lobster family under the 11 genera and 46 species of animals collectively, it can be clearly seen that crayfish and lobster are relatively distantly related, are creatures under the two families.

Japan legislates to ban the sale of crayfish! How does this invasive species achieve a counterattack in China?

The name may be more able to catch the hearts of foodies, after all, real lobsters are more expensive than crayfish. The obvious difference between them is the two large tongs, the crayfish live in fresh water and the lobster lives in the seawater.

Crayfish are not native to China, it is native to the waters near the Gulf of Mexico in the Americas, and there is a theory that Chinese crayfish were brought here by the Japanese. In 1918, Japan took the lead in introducing crayfish from the United States, of course, it was not used for food or breeding at that time, the crayfish at that time was just used as bullfrog food, generally chopped and thrown in the pond, in 1927 when the Japanese brought the crayfish to Nanjing for breeding, which eventually led to the invasion of this alien species into the Yangtze River Basin.

Japan legislates to ban the sale of crayfish! How does this invasive species achieve a counterattack in China?

As an invasive alien species, it has the characteristics of all invasive alien species, first of all, it has strong survival adaptability, and the requirements for the survival of the waters are not very high, which is one of the reasons why some people criticize crayfish.

Secondly, the recipe for crayfish is more extensive, small fish and shrimp they eat, some animal carcasses they also eat, in short, to come to the new environment to live delicious good, there is no point of discomfort. The third point is that the maturity period is fast and the ability to reproduce is strong, and the crayfish only need to mature after 9 months to enter the breeding period, and each female crayfish can lay hundreds of eggs per breeding season.

Japan legislates to ban the sale of crayfish! How does this invasive species achieve a counterattack in China?

For a long time, the crayfish was qualified as an invasive alien species, affecting the ecological environment and dealing a blow to native species.

How do crayfish come back to the table?

The management of alien species is a problem for all countries, whether it is the various raging alien species on the Australian continent, such as foxes, European hares, night cats, camels, etc., or the Asian carp that is flooded in North America, it is even more difficult to completely control.

There are also many cases of invasion of alien species on the mainland, such as the repulsive Fushou snail, and you can tell by its name that it has tried to arouse the favor of foodies and eventually get on our table, but it has failed, because there are too many parasites, and if it is not good, it will kill us. But there are a few exotic species in China that have conquered our stomachs, and that is some large bullfrogs and crayfish.

Japan legislates to ban the sale of crayfish! How does this invasive species achieve a counterattack in China?

Today we will talk about the crayfish, how exactly did it counterattack?

Crayfish were once an invasive species that flooded in the wild, but with the intervention of the foodie army, the number of crayfish in the wild decreased sharply, and eventually reached the situation of breeding, and also formed a certain industry and even exported abroad.

Crayfish as a food is not just eaten Chinese, in Iceland, Sweden and some states in the United States, crayfish is a very traditional delicacy. More than 80% of the mainland's crayfish export market is also in Europe and the United States.

Japan legislates to ban the sale of crayfish! How does this invasive species achieve a counterattack in China?

But in any case, the identity of crayfish as an invasive species cannot be changed, the fact that they can live in harsh water quality environments cannot be changed, and the fact that they eat animal carcasses or kill each other cannot be changed, which are the reasons why crayfish are criticized.

In fact, this is true for any ingredient, we eat seafood naturally do not like seafood that pollutes the water, do not like the river fresh in the stinky ditch, for the ingredients from the water, we must choose the kind of water quality. For this kind of food, eating farmed shrimp is more secure than eating wild, after all, the quality of crayfish farming water can still be guaranteed, and wild crayfish we can not ensure their source route.

Japan legislates to ban the sale of crayfish! How does this invasive species achieve a counterattack in China?

Say at the end

I don't know if you have found such a problem, there are many kinds of crayfish flavors, but most of them are heavy and heavy, whether it is minced garlic, thirteen spices or braised braised, these methods can better use condiments to cover up their original taste. Maybe cooking skills are an important reason why crayfish can be eaten on the table, unless the water quality is particularly good, I don't think anyone else will eat crayfish, right? Naturally, the taste is not as sweet as that seafood.

If you particularly like to eat crayfish, especially if you make it yourself, wash and soak as much as possible, and cook it thoroughly. The street side can not guarantee the source or whether the crayfish is fresh or eat as little as possible.

Text/science black hole, image source network intrusion deletion.

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