Do I need to go into the water to pick up sea cucumbers?

Once in the water, you can basically catch 50 or 60 kilograms of sea cucumber. When you are young, you can probably catch twenty or thirty kilograms, and some people can sometimes catch hundreds of kilograms.

The fresh sea cucumbers caught are all over 20 cm, and some are longer than the palm of your hand, so it feels hard to pinch them with your hands. Fishing for sea cucumbers is a technical activity. Generally, you need to stay underwater for 30 to 40 minutes, up to an hour, and dive for about 4 to 5 hours every day.

Distribution and value of sea cucumber

Sea cucumber belongs to the class Holothuria, which is a marine echinoderm living below 8000 meters by the sea. It has a history of more than 600 million years. Sea cucumbers feed on algae and plankton on the seabed. Sea cucumbers are covered with thorns and are widely distributed in the oceans of the world. There are many species along the coast of the South China Sea, and about 20 kinds of sea cucumbers are edible. Sea ginseng, bird's nest and shark's fin are equally famous, making it one of the eight treasures in the world.

Sea cucumber is not only a precious food, but also a precious medicinal material. According to "Compendium of Materia Medica", sea cucumber is sweet and salty, which has the functions of tonifying kidney and essence, promoting diuresis and strengthening yang, treating flaccidity and nourishing nature, so it is named sea cucumber. Sea cucumber has the functions of improving memory, delaying gonadal aging, preventing arteriosclerosis and resisting tumor.

With the popularization of knowledge about the value of sea cucumbers, sea cucumbers gradually enter people's dining tables. The living environment determines the quality of sea cucumber. The appetite of sea cucumber is at the front end, mostly on the ventral side. The anus is at the back end, mostly at the back. There are generally wart feet on the back and tube feet on the abdomen. The endoskeleton degenerates into tiny bone fragments. Many species have five rows of tube feet from mouth to anus.

The anal orifice is also responsible for breathing and excreting waste. The sea cucumber body is cylindrical, with a length of 10 to 20 cm, and the oversized one can reach 30 cm. It is dark and full of thorns. Tentacle wheel, 17 to 30, generally 20. The tentacles are well developed. Sea cucumber thrived on the earth earlier than primitive fish, and began to exist in Precambrian about 600 million years ago. It is the earliest living biological species and is called the living marine fossil.