The scientific name of the shrimp crawler we often talk about is Mantis stomata, which belongs to the phylum Arthropoda, the class Crustacea, the subclass Softacea, the order Stomatopoda, the family Mystidae, and the genus Mantisstoma. Oriental mantis shrimp is also called Oriental mantis shrimp. The head and the first four segments of the abdomen are healed, and the cephalothorax and thoracic segments are obvious on the back. The abdomen has seven segments, and the boundaries are also obvious, which is larger and wider than the head and chest. There is a pair of large-shaped compound eyes with handles and two pairs of antennae at the front of the head. The tops of the first pair of inner limbs are divided into three whip-like limbs, and the second pair of outer limbs are scale-like. There are five appendages on the thorax, the ends of which are sharp hooks for catching food. The thorax has six segments, the appendages of the first five segments are equipped with gills, and the sixth pair of abdominal limbs is well developed, forming a tail fan with the telson. The shrimps are dioecious, and the male has a sex organ on the distal segment of his chest. The mantis shrimp is a very ferocious benthic animal, widely distributed along the coast of my country, Japan, South Korea and Southeast Asian countries. It is distributed from the Great Peter Bay in Russia to the coasts of Japan and China, the Philippines, the Malay Peninsula, and Hawaii Island. It is generally found in water depths of 5 to 60 meters. Mantis shrimp likes to live in shallow cement sand or reef crevices. It is the dominant population of stomatopods and has high edible and commercial value. Mantis shrimps have their own "houses"

Mantis shrimps are benthic marine organisms and often burrow in holes in the mud and gravel on the seabed. Each individual has its own independent cave. The cave is often U-shaped, and its natural cave length is about 4 to 6 times its full length; the cave has two openings, one end is funnel-shaped, with a diameter of about 3 to 14 cm, and the other is smaller, about 0.5 to 3 cm; The depth of the cave can reach 8 to 20 centimeters on the soft mud bottom, and the U-shaped bend has the largest diameter. Professor Liu Haiying said that the mantis shrimp requires fresh water in the cave when living in it. When living in a cave, the entrance of the cave is often reduced to the point where only the small antennae and eyes can be extended out of the cave to observe the movement of the outside world. If it encounters an external intrusion, it will first use its small antennae to warn the invader, then quickly turn its head and tail and use its tail fan to defend itself. When the mantis shrimp enters the hole, it enters the hole with its head first. When the tentacles touch the bottom of the hole, the body turns sideways and the ventral side faces upward. Then the abdominal muscles contract, the body arches forward and then straightens, completing the head-to-tail reversal movement. .

The mantis shrimp has a very strong swimming ability and only shows its swimming habits when it comes out of the cave to live and hunt. Said, "When the mantis shrimp swims, it mainly relies on the intense swinging of the swimming limbs on the abdomen and the powerful flapping of the tail fan, and can use inertia to glide in the water. The mantis shrimp often swings the gill limbs on the abdomen to widely contact the water surface. It breathes through gills. The mantis shrimp reaches sexual maturity in one year, and its smallest biological size is about 80 mm. Its breeding period is generally from April to September, and its peak breeding period is from May to July, with slight differences in different places. Water temperature is an important factor affecting the breeding period of mantis shrimp.

Mantis shrimp resources need to be protected

Mantis shrimp is a nutritious, juicy and tender seafood food. The meat contains a lot of water, the meat tastes sweet and tender, light and soft, and has a special and attractive umami taste. It is best to eat it in spring every year, because the female shrimp is the season for laying eggs. Before the mantis lays eggs, the gonads are fully developed and have extremely high nutritional value. The mantis shrimp has a very high nutritional value, with a protein content of up to 20%, fat 0.7%, and vitamins, chloric acid, inosinic acid, and aminopropionic acid. and other nutrients needed by the human body. The mantis shrimp is warm in nature and sweet in taste. It has the effects of nourishing the kidneys, strengthening the body, and detoxifying the breasts. The head of the mantis shrimp is not only rich in protein, but also rich in cephalin and high-grade unsaturated fatty acids. , carotene and a variety of trace elements and various amino acids necessary for the human body, among which glycine and glutamic acid are the flavoring substances of mantis shrimp. In addition, it has high phosphorus and zinc content and has brain-building effects.

The head of the mantis shrimp can be processed to extract mantis shrimp oil, mantis brain oil and seafood pulp; its shell is a high-quality raw material for the production of chitin and chitosan, and is widely used in textiles, printing and dyeing, food, medicine, water Processing, metal extraction and recycling, environmental protection and many other aspects are followed by an increase in the development of mantis shrimps, and the mantis shrimp resources are currently being overused in order to reduce the importance of mantis shrimps. Following the mistakes of other fishery resources from prosperity to decline in the past, I hope everyone will pay attention to the protection of mantis shrimp resources.