Unfortunately and unexpectedly. Why the Yangtze sturgeon became extinct has long been traced. In the final analysis, it is the destruction of its growing environment by human beings! As we all know, the Yangtze River is the main traffic river in China, and it is rich in fishery resources. The intensive passenger and cargo transportation is the only way for inland and coastal ports and major cities to transport; At present, the Yangtze River Basin has formed the Yangtze River Economic Belt, which plays an important role in the economic development of cities along the Yangtze River. According to the data released by the Yangtze River Pilotage Center at 65438 on February 28th, 2020, there were 62,000 pilotage vessels in 2020, exceeding 60,000 for four consecutive years. The cargo capacity of the pilot ships was 450 million tons, up 5.3% year-on-year; Among them, the cargo capacity of ships on international routes was 370 million tons, an increase of 7.3% over last year. In other words, the number of ships on the Yangtze River is increasing every year. These ships discharge 360 million tons of oily wastewater and domestic sewage and 75,000 tons of domestic garbage into the Yangtze River every year. There are also oil and chemical pollution incidents caused by maritime accidents. But we should know that our pollution to the Yangtze River is not limited to these.

According to the statistics at the beginning of 1980, there are more than 40,000 pollution sources in the whole basin, including 490 industrial and mining enterprises. According to statistics, "at that time, the sewage discharge of the whole basin was1890,000 tons, which has risen to more than 27 billion tons in 2003; The over-standard rate of water quality in the provincial boundary section of the basin is also on the rise; The water pollution in the river basin, especially in the middle and lower reaches, has not been effectively managed and controlled. " Although we have started the relevant protection, it was not the best interference period. Pollution in the waters along the main stream of the Yangtze River has not been effectively curbed; The tributaries are seriously polluted and the water quality of the main stream is deteriorating; The lake is becoming more and more eutrophic, and the water ecosystem is destroyed; "White pollution" directly affects water resources.

For the white sturgeon, its size is very large and its number is very rare. The white sturgeon is a large fish like the white sturgeon, which is more susceptible to human activities than the small fish. On the Yangtze River where we live, the construction of power stations and dams hinders the life, reproduction and communication of the paddlefish. Coupled with overfishing, especially electric fish, which are now banned, all fish, large and small, are caught in the net, making the sturgeon lack of adequate food sources. This led to the rise of paddlefish from "extremely endangered species" to "wild extinction". Although there is more than one kind of fish in the Yangtze River, if we don't pay attention to the environment, more than 100 kinds of sturgeon will become extinct. It is imperative to strengthen the protection of fish habitats and the management of protected areas. Fortunately, the country has begun to protect the key waters of the Yangtze River basin, which is also the "ten-year fishing ban". The fate of fish in the Yangtze River will usher in a new turning point. The control of water pollution is a protracted war, and we must work hard for the protection and restoration of the Yangtze River.