How much does a swimming crab weigh? Why is the swimming crab roe green?

Swimming crabs, also known as three-spotted swimming crabs, pistol crabs, white crabs, etc., have fat and delicious meat, high nutritional value and economic value, and are mainly distributed in coastal areas in my country. The larger the size of the swimming crab, the thicker the meat. The smaller the size, the less mature it may be, the less meat, the worse the taste, and the cheaper it is. So how big is a swimming crab in general? See what the article below shares.

Contents of this article

1. How much does a swimming crab weigh?

2. Why is the swimming crab roe green?

3. How to preserve live swimming crabs

How much does a swimming crab weigh?

A large swimming crab weighs about 500 grams, and a smaller one weighs about 250 grams. Most swimming crabs sold on the market weigh between 250 grams and 350 grams. There are about 1 to 2 crabs per pound. You can buy according to your needs.

The swimming crab, also known as the three-spotted swimming crab, pistol crab, white crab, etc., has fat and delicious meat, high nutritional value and economic value. It is mainly distributed in coastal areas in my country.

The larger the swimming crab is, the thicker its meat is. The smaller it is, the more likely it is not mature enough, has less meat, tastes relatively poorer, and is cheaper.

When buying swimming crabs, it is recommended to choose those that are more lively, have strong claws and relatively hard crab legs. Such swimming crabs are mostly fresher and have better meat quality.

Why is the swimming crab roe green?

The reason why swimming crab roe is green is because histamine is produced in the body of swimming crab, which causes the crab meat to turn green. Generally speaking, when swimming crab is dying or dead, the histamine in the crab body will decompose to produce histamine, which is a toxic substance. It is recommended not to continue eating it.

The longer the swimming crab has been dead, the more histamine will accumulate in its body and the more toxic it will be. Even if the swimming crab is cooked at high temperature, this toxin is not easily destroyed.

The roe in swimming crabs is generally golden yellow. When steaming or cooking, it is best to cook it for more than 20 minutes after the water boils. Only when the swimming crabs are fully cooked can the bacteria in the crab meat be killed, making it safer to eat.

When eating swimming crabs, it is best to remove the crab gills, crab heart, crab stomach and crab intestines, because they contain a large number of bacteria, viruses, sludge and other substances, which may not be completely eliminated by high temperature.

How to preserve live swimming crabs

Method 1: Place in a fish tank. Method 2: Place in a plastic basin or bucket. Method 3: Place in the refrigerator. Live swimming crabs can be placed in a fish tank without leg binding. The amount of water should be enough to cover the swimming crabs. If you want them to live longer, you can feed them some food regularly.

The swimming crab has a lot of meat, rich fat, delicious taste and rich nutrition. It is distributed in Japan, Korea, the Malay Archipelago, the Red Sea and most coastal areas of mainland China.

The swimming crab is an omnivorous animal, and its main food is shellfish, fresh fish, small shrimps, etc. In addition, it also eats algae sprouts, marine animal carcasses and rotten aquatic plants.

The swimming crab is a warm-temperate perennial large crab and the largest crab in China. It is good at swimming and often lurks on the seabed or near the estuary. It is ferocious and aggressive, has strong reproductive capacity and grows fast.