How to protect the white sided dolphin How to protect the white sided dolphin?

1. Ex-situ conservation of white-sided dolphins: relocate as many white-sided dolphins remaining in the main stream of the Yangtze River as possible to semi-natural environments with similar environmental conditions to the Yangtze River, which are easy to be controlled and improved manually.

2. Protection of the habitat of the white-sided dolphin: Although the environment of the Yangtze River is deteriorating and it is difficult to change this situation in the near future, it is beneficial and necessary to designate the section of the river where the distribution of the white-sided dolphin is relatively concentrated and the environmental conditions are more suitable for the white-sided dolphin nature reserve to protect the existing habitat of the white-sided dolphin and delay the extinction rate of the white-sided dolphin.

Once a breakthrough is made in the ex-situ conservation and rearing of white-sided dolphins in the future, the Yangtze River will still be the preferred location for the reintroduction of offspring bred under rearing or in semi-nature reserves.

Daily activities: The baiji dolphin is timid by nature, easily frightened, generally far away from ships, difficult for humans to approach, coupled with the sparse population and wide activity area, so the research on its living habits in the wild state is very limited.

The baiji dolphin has a constant body temperature of around 36. It has high requirements for water temperature conditions, and often stays in a fixed area for a period of time, and then moves to another area after the water temperature changes. It prefers to move in small groups of 2-16 individuals, and it is common to swim with finless porpoises, especially during mating.

They are accustomed to inhabiting deep waters in the center of rivers, and will also enter the confluence of lakes, tributaries and main streams. Mainly active during the day and resting at night. Timid and shy, it rarely approaches the shore and boats, but often swims to shallow waters in the morning and dusk to hunt for fish and shrimp.

Rely on its own ultrasonic signals to spot food and devour it in a surprise manner.

1.Establish a nature reserve for white-sided dolphins.

2.Reduce the discharge of "three wastes" into the Yangtze River.

Although we can't directly protect the baiji dolphin, we can protect water resources and indirectly protect the baiji dolphin.

Shut down chemical factories along the coast, punish illegal sewage discharge, ban hunting, establish nature reserves, and establish breeding centers.

Summary. Hello dear [smile] The white-sided dolphin, a rare freshwater cetacean, is of great value for maintaining the ecological balance of the Yangtze River system and for scientific research. Because when protecting the white-sided dolphin, you need to protect it by changing their living environment.

And the environment in which they live is also the environment in which we humans live, and protecting the environment in which they live is to protect the environment in which we humans live, which can also be said to protect us human beings.

Only when the living environment improves, these species will not become fewer and less, and finally become extinct, and these species will not become extinct, then human beings can also survive in this environment.

If the environment is not protected, but becomes worse and worse, then in the future, humanity will be greatly threatened.

In our opinion, the white-sided dolphin basically lived in the Yangtze River basin, and in the beginning, it was also very numerous.

These white-sided dolphins live in the waters of the Yangtze River, in addition to some natural substances in the Yangtze River Basin, it is the existence of these animals, the entire Yangtze River Basin has a relatively complete ecological chain, animals have their own predators and eaters, in the process of their reproduction, there are also white-sided dolphins ** food, at that time, the number is relatively reasonable.

Why white-sided dolphins need protection.

Hello dear [smile] The white-sided dolphin, a rare freshwater cetacean, is of great value for maintaining the ecological balance of the Yangtze River system and for scientific research. Because when protecting the white-sided dolphin, you need to protect it by changing their living environment. And the environment in which they live is also the environment in which we humans live, and the environment in which they live is the environment in which we humans live, which can also be said to protect us from hail and excite human beings themselves.

Only when the living environment improves, these species will not become fewer and less, and finally become extinct, and these species will not become extinct, then human beings can also survive in this environment. If the environment is not protected, but becomes worse and worse, then in the future, humanity will be greatly threatened. In our opinion, the white-sided dolphin basically lived in the Yangtze River basin, and in the beginning, it was also very numerous.

These white-sided dolphins live in the waters of the Yangtze River, in addition to some natural substances in the Yangtze River Basin, it is the existence of these animals, the entire Yangtze River Basin has a relatively complete ecological chain, animals have their own predators and eaters, and in the process of breeding in his source socks, there are also white-sided dolphins that eat, at that time, the number is relatively reasonable.

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The baiji dolphin has a darker body color, dorsal fin against the back, and a lip length of about 30 cm.

How to distinguish a baiji dolphin, finless porpoise and Chinese white dolphin? What are the characteristics of each of them?

It is relatively easy to distinguish them from the length of the kiss. On May 16, an aquatic biology expert from the Wuhan Baiji Dolphin Conservation Association told The Paper that the kiss of the Baiji dolphin was very obvious. The snout of adult baiji dolphins can generally reach about 30 cm in length, while the snout of Chinese baiji dolphins is generally less than 20 cm. The finless porpoise's snout is shorter and more recognizable.

Body color is also a key factor in differentiating them. The body color of the baiji dolphin does not change much during its lifetime, with a blue-gray back and a white belly; The body color of the Chinese white dolphin changes significantly, its juvenile back is black-gray, after growing up, the black-gray back will gradually fade, showing black-gray spots, the background color is blue-white, and the adult is mainly white, and with the change of water temperature, it shows different degrees of pink, and the abdomen is always white; The finless porpoise is basically black-gray in color, and the color is the darkest of the three.

In addition, the dorsal fin of the baiji dolphin is more on the back of the body, and the body is shorter. The dorsal fin of the Chinese white dolphin is higher, closer to the middle of the back; Finless porpoises do not have dorsal fins.

The baiji dolphin lives in the Yangtze River, because the water is turbid, and its eyesight has basically degraded, so its eyes are very small, as big as small mung beans; The Chinese white dolphin lives in the sea and has good eyesight, but its eyes are mostly large. The expert said, "And in terms of posture, the baiji dolphin is more elegant, and the Chinese white dolphin is more sturdy." ”

Ten years ago, the baiji dolphin was declared "functionally extinct", which means that this large animal, which was once at the top of the energy pyramid and food chain of the Yangtze River ecosystem, has lost its status and function in the Yangtze River ecosystem, and has lost its ability to reproduce on its own.

The finless porpoise and the Chinese white dolphin also face precarious living conditions. On May 9, the "Yangtze finless porpoise upgraded to a national first-class protected animal special demonstration meeting" was held, and the relevant technical report prepared by the Institute of Hydrobiology of the Chinese Academy of Sciences showed that the protection of the Yangtze finless porpoise has entered the most critical period, and it may be the last chance to save the population.