Horseshoe crabs have to swim back to the deep sea to hibernate in winter every year, so it is still very difficult to culture them artificially. It is also important to pay attention to the time, time can not be too long, generally can only be temporarily raised for about 1 year. Horseshoe crab, belonging to the sea arthropods of the class Stomatopoda, is an ancient creature, born in the ancient times earlier than the dinosaurs, and has experienced countless superposition of life on earth until today. The existing horseshoe crabs in the world are divided into two subfamilies, three genera and four species, respectively, for the eastern coast of North America produced by the American horseshoe crabs, American horseshoe crab subfamily; Southeast Asian waters produced by the horseshoe crabs, horseshoe crabs, horseshoe crabs, horseshoe crabs, horseshoe crabs, all belong to the subfamily of horseshoe crabs.
First, horseshoe crabs can be artificial culture
1, horseshoe crabs can not be artificially cultured, can only be temporary. Temporary breeding time can not be too long, usually about 1 year, too long will appear symptoms of anemia, and will eventually die. Horseshoe crabs need to swim back to the deep sea to hibernate every winter, so artificial culture is still very difficult.
2. Horseshoe crab culture is divided into two types: indoor culture and outdoor culture. Indoor aquaculture generally uses bricks to build culture ponds, equipped with good oxygenators and seawater injection equipment. Outdoor aquaculture is usually done in earthen ponds, which need to be equipped with inlet and outlet gates to facilitate water intake and drainage, and the cost of aquaculture is much lower than that of indoor aquaculture.
Two, horseshoe crabs are what creatures
1, horseshoe crabs are an ancient organism, belonging to the class of limb stomatopods saber-tailed order of marine arthropods. Its ancestors appeared in the geological history of the Devonian period of the Paleozoic era, was born in the ancient period earlier than the dinosaur period, when the primitive fish was just introduced, with the passage of time, and its contemporaries or evolution, or extinction, but only horseshoe crabs from more than 400 million years ago, still retains its primitive and ancient appearance, so horseshoe crabs have a living fossil? The horseshoe crab is a living fossil.
2, the world's existing horseshoe crabs are divided into two subfamilies, three genera and four species, that is, the eastern coast of North America produced by the American horseshoe crabs, American horseshoe crabs subfamily; Southeast Asian waters produced by the eastern horseshoe crabs, horseshoe crabs, horseshoe crabs, horseshoe crabs, are horseshoe crabs subfamily. Among them, the eastern horseshoe crab and the southern horseshoe crab for the provincial key protected animals, the "Red List of Chinese Species" for the endangered level; round-tailed horseshoe crab for the provincial key protected animals, the "Red List of Chinese Species" for vulnerable level.