中華白海豚的資料

The Chinese White Dolphin (Sousa chinensis chinensis; traditional Chinese: 中華白海豚; pinyin: Zhōnghuá bái hǎitún), also called Indo-Pacific Humpback Dolphin, is a species of the Humpback dolphin and is one of eighty cetacean species. The adult dolphin is usually white or grey in colour. The population along the Chinese coast is unique in that they exhibit a pink-coloured skin.[1] This colour of the skin is not a result of colour pigmentation, but is actually from blood vessels used for thermoregulation to prevent overheating during exertion. The adult's body length is about 220 - 250 centimetres and the infant's body length is about 1 metre. The average weight of an adult is around 150 to 230 kilograms.

The Indo-Pacific dolphins can be found throughout Southeast Asia, and they breed from South Africa to Australia. There are two subspecies, with Sumatra, one of the Indonesian islands, as the dividing line between the Chinese and the Western subspecies, Sousa chinensis plumbea.

The two subspecies differ in color and size of their dorsal fin.

The subspecies found in Southeast Asia has pinkish white skin and a larger dorsal fin but lacks the fatty hump of its South African and Australian counterparts.

Chinese White Dolphin


圖片參考：http://upload.wikimedia.org/wikipedia/commons/thumb/5/55/Pink_Dolphin.JPG/250px-Pink_Dolphin.JPG



Conservation status


Data deficient [1]

Scientific classification





Kingdom:
Animalia


Phylum:
Chordata


Class:
Mammalia


Order:
Cetacea


Family:
Delphinidae


Genus:
Sousa


Species:
S. chinensis


Subspecies:
S. c. chinensis


Trinomial name

Sousa chinensis chinensis
(Osbeck, 1765)


Chinese White Dolphin range (blue area)

The Chinese White Dolphin (Sousa chinensis chinensis; traditional Chinese: 中華白海豚; pinyin: Zhōnghuá bái hǎitún), also called Indo-Pacific Humpback Dolphin, is a species of the Humpback dolphin and is one of eighty cetacean species. The adult dolphin is usually white or grey in colour. The population along the Chinese coast is unique in that they exhibit a pink-coloured skin.[1] This colour of the skin is not a result of colour pigmentation, but is actually from blood vessels used for thermoregulation to prevent overheating during exertion. The adult's body length is about 220 - 250 centimetres and the infant's body length is about 1 metre. The average weight of an adult is around 150 to 230 kilograms.

The Indo-Pacific dolphins can be found throughout Southeast Asia, and they breed from South Africa to Australia. There are two subspecies, with Sumatra, one of the Indonesian islands, as the dividing line between the Chinese and the Western subspecies, Sousa chinensis plumbea.

Color changes in growth period


Birth: Black in color.


Childhood: Grey in color.

Youth age: Pinkish grey with spots.

Adult: Pinkish white and the spots will fade out.
A Chinese White Dolphin can live up to 40 years.

Behavior

Chinese White Dolphins swim to the water surface to breathe every twenty to thirty seconds and after that, they will dive into deep water again. On average, adult dolphins rarely stay under water for more than four minutes.

They sometimes jump out of water and expose their whole body. This behavior, called breaching, is often impressive to human observers.

Threats



The sea of Hong Kong is becoming a very dangerous habitat for the Chinese White Dolphins. This is due to the increase in poaching, landfills, and sea traffic. Since Chinese White Dolphins are territorial animals and rarely stray far away from their habitat, the water pollution in Hong Kong has a high impact on them.

Overfishing and heavy boat traffic near northern Lantau also threatens the lives of the dolphins. Overfishing may be a major danger to the dolphins because there are few regulations on the fishing industry set by the Hong Kong Government. There are many fish that are caught which become bycatch ('trash fish') because they are not the right size or species to be sold for profit. Therefore, dolphins risk both being caught and becoming bycatch. As for boat traffic, about 70 boats pass an average Hong Kong shipping channel daily (Mak, 1996). Boat engine noise interferes with the dolphins' communication channels through animal echolocation.

中華白海豚Chinese white dolphin

The Chinese White Dolphin (Sousa chinensis chinensis; traditional Chinese: 中華白海豚; pinyin: Zhōnghuá bái hǎitún), also called Indo-Pacific Humpback Dolphin, is a species of the Humpback dolphin and is one of eighty cetacean species. The adult dolphin is usually white or grey in colour. The population along the Chinese coast is unique in that they exhibit a pink-coloured skin.[1] This colour of the skin is not a result of colour pigmentation, but is actually from blood vessels used for thermoregulation to prevent overheating during exertion. The adult's body length is about 220 - 250 centimetres and the infant's body length is about 1 metre. The average weight of an adult is around 150 to 230 kilograms.

The Indo-Pacific dolphins can be found throughout Southeast Asia, and they breed from South Africa to Australia. There are two subspecies, with Sumatra, one of the Indonesian islands, as the dividing line between the Chinese and the Western subspecies, Sousa chinensis plumbea.

The two subspecies differ in color and size of their dorsal fin.

The subspecies found in Southeast Asia has pinkish white skin and a larger dorsal fin but lacks the fatty hump of its South African and Australian counterparts

Color changes in growth period

Birth: Black in color.
Childhood: Grey in color.
Youth age: Pinkish grey with spots.
Adult: Pinkish white and the spots will fade out.

Life expectancy
A Chinese White Dolphin can live up to 40 years. The eldest dolphin lives in Hong Kong and is known to be about 33 years old. Scientists have discovered that the age of a dead dolphin can be determined by observing the cross section of its teeth.


For more information, u can go to

http://en.wikipedia.org/wiki/Chinese_White_Dolphin

~~~ Hope i can help u la~~~