Fishing of dragonflies

Trionyx japonicus is distributed in the deep sea. In China's waters, Trionyx japonicus is mainly produced in the waters of Dongsha, Xisha, Zhongsha and Nansha Islands. If you want to salvage it, you must sail to the sea. Fishermen in Tanmen Town of Hainan mainly make a living by catching precious seafood shellfish and Trionyx japonicus. The history of Tanmen fishermen's fishing in the sea was recorded in the Ming Dynasty. In the sailing age, due to the limited conditions, it took several months or even half a year to go out to sea at a time, and they conquered Xisha and Nansha by relying on groups of experienced captains and their own nautical "Genglu Book" to engage in fishery and shellfish fishing.

Modern sea fishing has made much progress in all aspects, but it is still difficult to catch clams. Because there are very few clams exposed on the surface of the island reef near the beach, it is necessary to release the small boat, open the sand layer with snail slurry, find the deep-buried shellfish, and then dive into the sea to salvage them, and transport them to the big ship by small boat. It will take 1-2 months to return to Tanmen Port. Although the current mechanization of ships and electronic communication ensure the safety of navigation, there are still great security risks in shellfish fishing in the sea, which makes it very difficult to fish shellfish, and the resources are scarce, so the cost is very high.

Tanmen has developed into making various ornaments and handicrafts because of the traditional fishing operation and the use of the shellfish only as lime burning material, which has developed the use of the shellfish to the extreme, and has also driven Tanmen, a historic fishing port town, to become a modern style integrating fishery operation, shellfish processing, tourism, seafood catering and other industries.