20 12 On April 2, 2008, at the public auction of the Yangtze River "Swordfish King" held in Yonglian Village, Zhangjiagang City, Jiangsu Province, a Yangtze River "Swordfish King" with a length of 45.3 cm and a weight of 325 g fetched a sky-high price of 59,000 yuan, equivalent to as much as 182 yuan per gram, which was comparable to the gold price more than three years ago. The picture shows that this swordfish was certified as "the largest Yangtze swordfish in 20 12 years".

In addition to delicious food, the Yangtze river swordfish is famous for its delicacy, and it will die after leaving the water for four or five minutes.

You can't reproduce artificially if you touch it.

The wild population is scarce and endangered.

In addition to delicious food, the Yangtze river swordfish is famous for its delicacy, and it will die after leaving the water for four or five minutes, which really brings great challenges to the artificial domestication of Yangtze river swordfish.

He Wei, a professor at Shanghai Ocean University, said that the artificial breeding of swordfish really gave experts including him a "duel". "For example, the four big fish, silver carp and bighead carp, can be artificially cultured in a large area because their ecological laws are relatively easy to master, and they are artificially injected at the beginning of domestication to make them spawn. However, it is very difficult for all aquatic organisms with flat bodies to reproduce artificially, such as saury. For one thing, no one has ever tried it, and they have no idea how to inject it. Another headache is that the swordfish is so expensive that it almost dies when touched. " What is the analysis? The Yangtze saury is extremely sensitive to water flow and even sound waves. "It is not easy to raise it, and there is no successful way to make it breed."