Crayfish has become a delicacy on the table in our country, but it is a disaster in other countries.

Japan recently announced a ban on the sale of crayfish.

Many people think that crayfish is actually Japanese, but it is not.

Japan is also one of the countries affected by crayfish attacks.

Crayfish are produced in North America, and their main habitat is the Gulf Coast, especially near the mouth of the Mississippi River.

Later, it was introduced to all over the world.

Crayfish can impact farmland.

Because crayfish like to dig holes as their nests and are aggressive.

As a result, shrimps cause serious damage to farmland water storage and irrigation.

Even on some dams, holes created by crayfish can eventually lead to serious dam breaches.

Due to its aggressive nature, it often comes into conflict with some native species, such as crabs and shrimps.

Since crayfish do not have strong survival ability and are very large in number, basically wherever there are crayfish, they will oppress the living space of other species, and in serious cases may lead to the extinction of other species.

Crayfish can occupy the living space of other organisms.

Crayfish can eat almost any species in the water, causing damage to crops in many farmlands.

If it appears in a fish pond, the consequences will be more serious.

Small fish in the fish pond will be eaten by crayfish.

Even if the crayfish does not hunt for food, it will kill these fry with its pincers.

Because crayfish are naturally aggressive and very territorial.

Therefore, where they live, they will affect other species, and there are no natural enemies.

What should you pay attention to when eating crayfish?

Although crayfish is a delicacy on the table in China, we must pay attention to the dangers of this kind of shrimp when cooking shrimp.

Before eating crayfish, you should wash them thoroughly and use a brush to repeatedly scrub the body, abdomen, and fine roots of the claws.

Bought shrimp can bring parasites and pathogens.

It must be cooked at high temperatures in order to sterilize and inactivate it.

After cooking, try not to eat crayfish that have been left overnight.

Most people are aware of the risk of heavy metals in crayfish.

Shrimp heads are also the easiest to accumulate heavy metals and other toxic substances, so they should be removed when eating.

It is also recommended not to eat shrimp yellows and shrimp threads.