The difference between shells: the shell of Portunus trituberculatus caught in the sea is thicker, while the shell of Portunus trituberculatus cultured in the sea is slightly thinner. Belly difference: when swimming crab is bred, the belly cracks, and the joints of crab claws will turn black, while the belly caught in the sea is white and clean. Leg length of crab: Portunus trituberculatus caught in the sea is longer than cultured crab. The taste is different: Portunus trituberculatus caught in the sea is white, tender and delicate, and the cultured crab is light in flavor.

What's the difference between marine capture and culture of Portunus trituberculatus? 1, shell difference

The swimming crab caught in the sea has a lot of activities, and all parts of its body are strong and powerful, and its shell is thick and hard. The swimming crab cultured in the sea has relatively small activity, slightly thin shell and average leg strength because there are no natural enemies in its living environment.

2. Poor stomach

The cultured Portunus trituberculatus will turn black at the gap between the abdomen and paw joints. On the contrary, Portunus trituberculatus caught in the sea looks shiny and has little sediment in its body, so its belly looks very white.

3, crab leg length

By observing the leg length of Portunus trituberculatus, we can also distinguish between those caught in the sea and those cultured in the sea. If cultured artificially, its crab claws and legs will be slightly shorter, while Portunus trituberculatus caught in the sea is more active and slightly longer.

4. Different tastes

Portunus trituberculatus caught in the sea, after steaming, the meat is white, tender and delicate, and the flavor is rich and delicious. Although the cultured Portunus trituberculatus tastes good, compared with the Portunus trituberculatus caught in the sea, it is light in flavor and not compact in meat quality.