Hairtail is naturally deep-sea fish. Depending on the species, it lives in a water depth of 40 to 50 meters to 200 meters below the water surface. If you drift to the shallow sea, the swim bladder will rupture and die, which is why you have never seen it alive. If there is hairtail in the water a few meters deep, I will catch hairtail after living by the sea for half my life. The so-called shallow water hairtail is leucorrhea, not the variety we usually eat. Deep-sea trawl is used to catch hairtail, which is distributed all over the world. China is mainly produced in the East China Sea, which is a famous fishing season. Hairtail in Bohai Sea tastes the best, but there is no closed fishing season now. Do not buy hairtail. It's basically hairtail in the Indian Ocean. It has a strong smell, with stony bones in its jaw and garlic cloves with both.