What kind of ecological environment does the Yangtze finless porpoise need? Is there still a chance

Wang Ding, deputy director of the Institute of Hydrobiology of the Chinese Academy of Sciences, told reporters that the number of finless porpoises is currently declining by 5% per year. Human activities are an important cause of the extinction crisis of the finless porpoise. The status quo remains the same, and the finless porpoise is likely to become extinct in about 15 years.

Experts are calling for a 10-year ban on fishing in the Yangtze River basin. The white dolphin (i.e., baiji dolphin) that has survived in the Yangtze River for 25 million years may become the world's first dolphin animal to become extinct due to human activities. Today, the finless porpoise, known as the "ugly cousin" of the white porpoise, is also experiencing a sharp decline in its population.

Is the extinction elegy to be sung again? Recently, Science magazine once again focused on ecological protection in the Yangtze River Basin. The article, "Last Stand on the Yangtze," provides an in-depth look at the increasingly severe survival patterns of the Yangtze River porpoise.

In fact, the Yangtze finless porpoise is the only freshwater subspecies in the world. They survived on Earth earlier than the white-sided dolphins we knew before. After the white-sided dolphin was declared functionally extinct in 2007, the finless porpoise became the only mammal in the Yangtze River.

The endangerment of the Yangtze finless porpoise reflects the high price paid by China's rapid economic development. The Yangtze finless porpoise has not been effectively protected by us, especially in recent decades, with the intensification of human activities, the survival of the Yangtze finless porpoise has deteriorated. Since March 3, 2012, 12 finless porpoises have died in Dongting Lake, and as of April 15, 12 finless porpoises have died, nine of which were found within a week.

Experts say the Yangtze finless porpoise has entered a period of rapid extinction. <>

There is no longer a chance, the Three Gorges Dam has already destroyed the Yangtze ecosystem, and it is only a matter of time before the finless porpoise disappears.

No way, the Yangtze River has become the second Yellow River, the Three Gorges damming has completely changed the Yangtze River, all kinds of pollution from surrounding cities flow into the Yangtze River, and the Yangtze River ecosystem is on the verge of collapse.

Without hope, ecological restoration of the Yangtze River is not easy to say.

Electric fish is the most harmful to the finless porpoise, a few days ago fishing by the river, I was fortunate to see the finless porpoise fishing, and I took a picture with my mobile phone. I saw it for several days. Later, every night there were electric fish, and the finless porpoises never showed up again, praying for their safety.

No way! Industry, domestic sewage, toxic wastewater, and wastewater discharged from various ships on the river are the deadliest blows to the Yangtze River organisms!

Now the Yangtze River can't even survive small fish, let alone big fish, holding small fish is to keep the Yangtze River.

It's basically impossible to recover.

What would you do if there was another chance, and if there was another chance, would you be nice to the finless porpoise?

Our purse seine nets along the Jingjiang River have wiped out all the food for the finless porpoise.

Come to my house, my family has a big fish pond.

All the dams on the Yangtze River have been blown up, and all the ecology has been restored.

As of 2020, the Yangtze finless porpoise population is currentOnly about 1,000 heads remained. The National Forestry and Grassland Administration and the Ministry of Agriculture and Rural Affairs today (June 19) began to solicit public opinions on the "List of Wild Animals under National Key Protection". The "List of National Key Protected Wild Animals" plans to add or upgrade the protection level of about 400 species, such as the spoon-billed sandpiper, the Yangtze finless porpoise, and the northern copperfish, all of which are considered to be upgraded or added to the national first-class protected species.

On July 24, 2018, the Ministry of Agriculture and Rural Affairs held a press conference on the implementation of the Yangtze River finless porpoise scientific investigation and the rescue of rare species in the Yangtze River, and Yu Kangzhen, vice minister of the Ministry of Agriculture and Rural Affairs, introduced that the scientific expedition estimated the number of Yangtze finless porpoises to be about 1,012, of which about 445 in the main stream, about 110 in Dongting Lake, and about 457 in Poyang Lake.

The exact number is unknown, but as of 2020, there are only about 1,000 finless porpoises left.

The Yangtze finless porpoise is listed on the IUCN Red List of Threatened Species (IUCN) as Critically Endangered (CR) in 2016. Listed in the CITES Appendix of the Washington Convention Endangered species. China's Ministry of Agriculture has issued a document requiring the protection and management of the Yangtze finless porpoise in accordance with national first-class protected animal standards.

List of Wild Animals under National Key Protection" is a national first-class protected animal.

Population status. The Yangtze finless porpoise faces threats mainly due to the impact of human activities. The noise and propellers of the high-density and busy navigation vessels in the main stream of the Yangtze River have become the biggest threat to the finless porpoise, and the indiscriminate fishing and illegal fishing in the Dongting Lake area, the construction of some water conservancy facilities due to water pollution, etc., the fixed nets used in the lake area occupy a large amount of water surface in the dry season.

Human activities such as the construction of water conservancy facilities and water pollution continue to intensify, leaving the Yangtze finless porpoise facing the same threat as the white-sided dolphin, and the population in the wild has declined sharply. With only about 1,200-1,500 individuals, there are fewer than giant pandas, and are declining at a rate of 5%-10% per year, and the finless porpoise around Dongting Lake is extinction at the fastest rate in the entire Yangtze River basin.

When China took measures to protect the white-sided dolphin, finless porpoise and other aquatic animals, its population rebounded, and dozens of them often appeared on the surface of the Yangtze River, playing in the surging river water, sometimes jumping out of the water with black backs, sometimes diving into the river, ups and downs, turning flexibly, the scene is quite spectacular.

What is even more gratifying is that passing boats have taken the initiative to give way to the Yangtze finless porpoise, fearing that the finless porpoise will be frightened, indicating that people's consciousness of protecting wild animals is gradually increasing.

On July 24, 2018, the Ministry of Agriculture and Rural Affairs held a press conference on the implementation of the Yangtze River finless porpoise scientific investigation and the rescue of rare species in the Yangtze River, and Yu Kangzhen, vice minister of the Ministry of Agriculture and Rural Affairs, introduced that the scientific expedition estimated the number of Yangtze finless porpoises to be about 1,012, of which about 445 in the main stream, about 110 in Dongting Lake, and about 457 in Poyang Lake.

There shouldn't be many Yangtze finless porpoises now? Come, most of them have perished, really very few.

The Yangtze finless porpoise is on the verge of extinction.

The finless porpoise is not extinct yet, and is distributed in the main stream of the middle and lower reaches of the Yangtze River, as well as Dongting Lake and Poyang Lake. Due to the sharp increase in human activities such as electrofishing and sand dredging, the habitat of the Yangtze finless porpoise has been severely damaged. There are only 500 animals left in the main stream of the Yangtze River, which is a critically endangered species.

How to save this species has become the focus of attention from all walks of life.

Yangtze finless porpoise

A small cetacean, the only species of the genus Porpoise. The finless porpoise does not have a dorsal fin, and has an inconspicuous bulge on its back between the anterior two-fifths of the body and the caudal fin, with scales** on the bulge, and a pale blue-gray body, which is different from that of the porpoise. The finless porpoise is the only freshwater subspecies in the genus Finless Porpoise and has lived on Earth for 25 million years.

The finless porpoise resembles a fish, with a long meter, gray-black body, a short head, a slightly protruding forehead, small eyes, a flat tail, no dorsal fin, and rarely jumps out of the water, only the dorsal ridge is exposed to the sea. The finless porpoise is lead-gray or grayish-white, with a body length of about 125 190 cm, a weight of 100 220 kg, a blunt and rounded head, and a slightly forward bulge in the forehead; The head of the finless porpoise is short and approximately rounded.

The forehead is slightly convex anteriorly, the snout is short and broad, the upper and lower jaws are almost the same length, and the snout is shorter and broader; The teeth are short, and the left and right sides are flattened and spade-shaped; Smaller eyes. The main food of the finless porpoise is fish, but it also eats shrimp and squid. The finless porpoise usually inhabits the sea at the junction of brackish and fresh water, but it can also live in freshwater such as the lower reaches of large and small rivers.

According to reports, there are only about 1,000 finless porpoises left so far, and the endangerment is more serious than that of giant pandas.

According to the report, experts said that after so many years of protection, the giant panda has reached more than 2,000 and has been adjusted from endangered to vulnerable in the International Union for Conservation of Nature (IUCN). Considering the fragmentation of the population, the Yangtze finless porpoise is more endangered than the giant panda.

In addition, the Yangtze River flows through a densely populated region with a highly developed economy. The dense population has had a serious adverse impact on the environment in which the Yangtze finless porpoise lives, and it is no longer enough to support a large finless porpoise population. This is an important reason why the Yangtze finless porpoise population has been declining in recent decades.

As the Yangtze River is a waterway, a large number of ships pass through it, and the noise generated by large ships will have an adverse impact on the finless porpoise that relies on the sonar system to hunt and communicate, as well as various pollution, industrial and agricultural sewage discharge, all of which are the causes of the destruction of the ecological diversity of the Yangtze River, and the Yangtze finless porpoise cannot be "left alone".

I hope that the Yangtze finless porpoise can be effectively protected!

Because of the impact of environmental protection, environmental pollution is becoming more and more serious, and the water quality requirements of finless porpoises may not have changed, but we have changed the water quality.

Because of the different physiological structures, strict water quality is better conducive to the survival of finless porpoises.

Environmental changes The finless porpoise is the only freshwater subspecies in the genus Finless Porpoise.

Because of serious environmental pollution, the living environment of the finless porpoise has deteriorated.

Because polluted water sources can be fatal to them.

How do you feel that the current questions are like high school exams, filling in the answers, if netizens rate, eh, it's too naïve. Every day a new question arises, but the answer is not important or needed, as long as someone participates, it serves its purpose.

It's because of its physiology, which is why it's so strict.

Because the environment is changing faster than the finless porpoise is evolving.

Extraordinary people are strict about water quality.