What is the distribution range of the baiji dolphin?

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Linda Hirthe asked a question: What is the distribution range of the baiji dolphin?
Asked By: Linda Hirthe
Date created: Mon, Sep 20, 2021 9:51 AM
Date updated: Wed, May 25, 2022 5:30 PM

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Top best answers to the question «What is the distribution range of the baiji dolphin»

  • Distribution Range. According to the history record, Yangtze River Dolphins were widely spread over the Yangtze River area, from 35km away the upstream of Gezhou Dam in Yichang County to the sea entrance near Shanghai City. It even included Dongting Lake and Boyang Lake, totally up to 1700 km river area where Baiji Dolphins live.

FAQ

Those who are looking for an answer to the question «What is the distribution range of the baiji dolphin?» often ask the following questions:

🌴 Where is the geographic range of baiji located?

  • Geographic Range. , also known by the common name baiji, is found in China in the mouth of the Chang Jiang (Yangtze) to a point about 1900 km up the river, as well as in the middle and lower regions of the Quintangjiang River and in the Dongting and Poyang lakes.

🌴 What did baiji dolphin eat?

Why is the baiji dolphin almost extinct?

  • This would make the baiji the first cetacean-that is, dolphin, porpoise or whale-to go extinct because of humans . The species was probably driven to extinction by harmful fishing practices that were not even devised to harm the dolphins, such as the use of gill nets, rolling hooks or electrical stunning.

🌴 What is a baiji dolphin?

Baiji Dolphin Description. The body of this dolphin is designed to make it very easy for them to swim in the water but at the same time to do it without lots of energy being used. They have an upward facing snout with a beak like end to it. They also have rounded flippers.

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We've handpicked 21 related questions for you, similar to «What is the distribution range of the baiji dolphin?» so you can surely find the answer!

What does a baiji dolphin look like?

It has a fusiform body like the other species of dolphins, but more robust. It has a small head with a prominent melon. The skull is devoid of maxillary ridges. The eyes are quite small in comparison to those of the oceanic dolphins, and this is because in the muddy water of its habitat they do not need to have good visibility.

What kept the baiji dolphin become extinct?

The Yangtze River dolphin or baiji (Lipotes vexillifer) was an obligate river dolphin endemic to the middle-lower Yangtze River [Changjiang] drainage and the neighbouring Qiantang River in eastern China. The baiji experienced a precipitous population decline throughout the late twentieth century: there were thought to be about 400 individuals in the population in 1980 but only 13 were counted in 1997-1999.

What is the distribution of the atlantic white-sided dolphin?
  • The Atlantic white-sided dolphin has a fairly narrow distribution in the cool temperate and subarctic waters of the North Atlantic. They prefer the continental shelf regions west of the Outer Hebrides, and although they tend to move closer to the coast during summer months, they are rarely seen within the Continental Shelf in the Hebrides.
What is the distribution of the southern right whale dolphin?
  • Southern right whale dolphins have a circumpolar distribution across the Southern Hemisphere, generally occurring in cool temperate to Sub-Antarctic waters between 30°S and 65°S.
What is the audible range of a dolphin?

Not only is a cat’s hearing immensely impressive with an average range of between 45Hz – 64,000Hz, they are also mechanically impressive.

What is the frequency range of dolphin echolocation?
  • The frequency range for echolocation clicks is 0.2 to 150 kHz (Reynolds & Rommel, 1999). Because lower frequency sounds travel further, dolphins tend to use lower frequencies when echolocating on objects that are at a distance.
What is the range of a bottlenose dolphin?

Bottlenose Dolphins are stout-bodied animals with a short beak and erect dorsal fin. Their coloration is grey tinged with purple above and paler undersides. Adults can grow to about 10 feet.

What maximum horizontal range could the dolphin achieve?

Problem: Trained dolphins are capable of a vertical leap of 7.0m straight up from the surface of the water-an impressive feat. Suppose you could train a dolphin to launch itself out of the water at this same speed but at an angle. Part A: What maximum horizontal range could the dolphin achieve?

What are other names for the baiji dolphin?
  • You will likely hear the Baiji Dolphin referred to as a variety of other names but they are all the same one. Goddess of the Yangtze is common due to the respect that the people of this area have for the dolphins. The Chinese River Dolphin is also a popular name.
What are some facts about the baiji dolphin?
  • Fun Facts Scientists have placed the baiji in the family Platanistidae, the river dolphin family. Four other species of river dolphins also are in this family. Baiji is a Chinese word meaning "a white dolphin.". This species is one of the most endangered cetaceans in the world, with a population numbering in the tens or fewer.
What are the characteristics of the baiji dolphin?
  • They also have rounded flippers. There is no hair found on the Baiji Dolphin and you will notice that compared to other dolphins, the eyes are high up on the head. They feature a grayish blue color with white or cream on the belly. They do have teeth on the upper and lower jaws. The total teeth ranges from 30 to 36.
What eon did the baiji dolphin live in?

Where did the baiji dolphin live in China?

  • The baiji was a freshwater dolphin that lived only in the Yangtze River in China. The Yangtze is the third longest and largest river in the world and the biggest river in Asia. Baijis lived largely in the mainstream of the middle and lower reaches of the Yangtze River and two large connecting lakes - Dongting and Poyang.
What happened to the baiji (yangtze river dolphin)?
  • The baiji or Yangtze River dolphin, once found in the Yangtze River in China, is sadly now believed to be extinct. The baiji holds the unfortunate award for being the first whale or dolphin to be driven to extinction by humans; the baiji was sacrificed to population pressures and industrialisation of China.
What is the diet of the baiji dolphin?

Baiji are carnivores (piscivores) and feed on a wide variety of freshwater fish.

What is the habitat of the baiji dolphin?
  • The Yangtze River subspecies of narrow-ridged finless porpoise shared its habitat with another cetacean, the Baiji dolphin, until the extinction of that species in 2006. Baiji was profiled in “Last Chance to See”, by Douglas Adams (author of Hitchhikers Guide to the Galaxy), before its demise.
What is the size of a baiji dolphin?
  • The skulls of these dolphins lack maxillary crests, and the palatal portions of the maxillae contact one another. Female baiji are larger than males. Females range from 185 to 253 cm in length and weigh 64-167 kg, while males range from 141 to 216 cm in length and weigh 42-125 kg.
What made the baiji white dolphin go extinct?

The baiji is one of only a few dolphin species that is known to have adapted from the ocean to a freshwater environment. The likely cause of the baiji's decline is from the use of fishing nets with hooks that snag and drown the dolphins as bycatch. Other causes may include habitat degradation.

What was the loss of the baiji dolphin?
  • The extinction of the baiji marks the loss of a truly incredible, unique animal and sadder still is the loss of an entire group of mammals as the baiji was the sole representative of the river dolphin family 'Lipotidae', which separated from the other river dolphins 20 million years ago.
How did the baiji dolphin die?

They live in a very diverse habitat here. Part of their survival is highly dependent upon conservation efforts. The river has had serious problems with pollutants including chemicals and debris that compromise the survival of anything living in it. Size comparison of a baiji to an average human / Author: Chris Huh.

How did the baiji dolphin evolve?

The baiji is a freshwater river dolphin that lives in the Yangtze (yang-see) River in eastern China. It has a long, narrow beak (snout), which curves slightly upward and grows longer with age. It has a steeply sloped forehead and tiny eyes that are set high on the sides of the head.

Where is baiji white dolphin found?

The baiji is a freshwater dolphin found only in the Yangtze River, China. It is pale blue to gray on its dorsal (back) side and white on its ventral (belly) side.