Because people in the United States do not eat hairy crabs, and as an invasive species, hairy crabs have no natural enemies.

Let’s talk about the reasons in detail:

First of all, the crab roe and crab paste that we prefer when eating hairy crabs are the genitals, glands, tissue fluid and other parts of the crab. Americans have almost never eaten it. I don’t even have the habit of eating offal, let alone eating these parts.

Secondly, they believe that crab roe and crab paste are not safe. The American media has long published some reports on Chinese people eating crab roe and crab paste, saying that crab roe and crab paste are the digestive and excretory glands of crabs. , liver and pancreas and other places where chemical substances are concentrated, you should eat as little as possible for your health.

Of course Americans also eat crabs, but geographically speaking, Americans tend to eat seafood rather than fresh water. I eat relatively few freshwater crabs, and generally eat more seafood such as larger king crabs. Or not to mention that these crabs are meatier and easier to handle and eat than freshwater crabs such as hairy crabs that Chinese people often eat.

And in the United States, hairy crabs are included in the list of "restricted animals" and are prohibited from being imported, transported or held without a license. Government departments also require the public to report hairy crabs to the management department once they find them, and release them is prohibited. Restaurants caught dealing in hairy crabs can be fined and could face three years in prison. For example, the state of Maryland in the United States has issued a wanted notice. If people catch hairy crabs, they must not throw them back into the water. They must take pictures and freeze them. They must also inform the National Smithsonian Ecological Research Center of the capture location.

So we often see in the news that hairy crabs are flooding in the United States, but few people dare to eat these wild hairy crabs.