中華白海豚的問題（英文）～１０分＋＋～高手入

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.

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 as long as 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.


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. A calf surfaces from the water twice as much as an adult. This is because calves have a smaller lung capacity than an adult. Adult dolphins can stay underwater for about two to eight minutes but a calf can only stay underwater for one to three minutes. 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. Besides jumping out of water, White Dolphins also come up vertically out of the water, exposing the front half of the body. They have a pair of protruding eyes and they can see clearly in both air and water.

Reproductive cycle
Chinese White Dolphins are quite sociable creatures and usually live in small groups of three to four. Female white dolphins become mature at ten years old while the males become mature at thirteen years old. The Chinese White Dolphins usually mate from the end of summer to autumn. Infant dolphins are usually born eleven months after the mating. Mature female white dolphins can give birth every three years and the parental care will last until their offspring can find food themselves.

2007-05-29 18:38:39 補充：
很多的海豚或是鯨魚都住在深水處；但中華白海豚則喜歡住在淺水地如香港沿海一帶。活動範圍: 一般生活地方多是淺水處 他們的休息或是遊玩都會集結在近沙灘的海域 在捕獵的時侯，牠們會在淺水及多岩石的水域一帶出現 香港的中華白海豚 出現的時間 一般來說中華白海豚的生活是要配合潮水及日照的時間 牠們會在潮漲的時候出外捕食；例如到淺水或多岩石處 而我們最想便是看看白海豚的嗎？所以我們便可以在黎明或黃昏時！因為那段時間牠們是最活躍的。 食物: 小魚,蝦 香港海港常見的魷魚等較小的海洋動物

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.
Dolphin watching

Hong Kong Dolphinwatch Ltd. has been running boat trips to visit the Chinese White Dolphins for the past five years. The dolphins mainly live in the waters of Lantau North, Southeast Lantau, the Soko Islands and Peng Chau. They primarily do this to raise awareness of Hong Kong citizens on the dolphins. Ten percent of the profits of the organization goes into research for Friends of the Earth (HK)'s Water Action Group, which is a charity aimed to raise public awareness of Hong Kong's coastal environment (see ecology of Hong Kong). However, this action has been criticized as further endangering the Chinese White Dolphins.
中華白海豚（學名Sousa chinensis），又名印度太平洋駝背豚，屬於鯨目海豚科，是一種於印度洋及西太平洋出沒的海豚。一般來說牠們不是白色的海豚而是有大約三種顏色的，要視乎牠們的年齡。剛出生的中華白海豚是灰色，而年青的中華白海豚呈淺粉紅色，最後成年的中華白海豚是粉紅色，牠們身長由一米到三米不等。全球性分佈是由澳洲中部及北部、華南、印尼、印度洋海岸線至南非。而主要生活在熱帶及溫帶沿岸水域，亦在河流出現及鹹淡水及沼澤一帶，極之廣泛。
雖然名稱是「白海豚」，但身體通常會是粉紅色。中華白海豚的種群主要居住於河口一帶水域，如長江、閩江、九龍江、珠江口、漢江和珠江。
中華白海豚是香港的吉祥物之一。
香港的中華白海豚
屯門及大嶼山對出的一帶水域，包括沙洲及龍鼓洲、望後石、爛角咀、大小磨刀和赤鱲角機場東北面等水域

中華白海豚
維基百科，自由的百科全書
跳转到： 导航, 搜索
?編輯中華白海豚


保育等級
資料不足
分類
界： 動物界 Animalia

門： 脊索動物門 Chordata

綱： 哺乳綱 Mammalia

目： 鯨目 Cetacea

科： 海豚科 Delphinidae

屬： 駝背豚屬 Sousa

種： 中華白海豚 S. chinensis

亞種： 中華白海豚 S. c. chinensis


學名
Sousa chinensis chinensis
(Osbeck, 1765)
分佈圖


中華白海豚分佈範圍
中華白海豚（學名Sousa chinensis），又名印度太平洋駝背豚，屬於鯨目海豚科，是一種於印度洋及西太平洋出沒的海豚。一般來說牠們不是白色的海豚而是有大約三種顏色的，要視乎牠們的年齡。剛出生的中華白海豚是灰色，而年青的中華白海豚呈淺粉紅色，最後成年的中華白海豚是粉紅色，牠們身長由一米到三米不等。全球性分佈是由澳洲中部及北部、華南、印尼、印度洋海岸線至南非。而主要生活在熱帶及溫帶沿岸水域，亦在河流出現及鹹淡水及沼澤一帶，極之廣泛。

雖然名稱是「白海豚」，但身體通常會是粉紅色。中華白海豚的種群主要居住於河口一帶水域，如長江、閩江、九龍江、珠江口、漢江和珠江。

中華白海豚是香港的吉祥物之一。

目錄 [隐藏]
1 生活習慣
1.1 居住環境
1.2 活動範圍
1.3 香港的中華白海豚
1.4 出現的時間
2 外部鏈接



[編輯] 生活習慣

[編輯] 居住環境
很多的海豚或是鯨魚都住在深水處；但中華白海豚則喜歡住在淺水地如香港沿海一帶。但根據 Saayman & Tayler 的研究指出中華白海豚亦會在不同的地方進不同的活動。


[編輯] 活動範圍
一般生活地方多是淺水處，他們的休息或是遊玩都會集結在近沙灘的海域，在捕獵的時侯，牠們會在淺水及多岩石的水域一帶出現。


[編輯] 香港的中華白海豚
屯門及大嶼山對出的一帶水域，包括沙洲及龍鼓洲、望後石、爛角咀、大小磨刀和赤鱲角機場東北面等水域。


[編輯] 出現的時間
一般來說中華白海豚的生活是要配合潮水及日照的時間， 牠們會在潮漲的時候出外捕食；例如到淺水或多岩石處， 我們便可以在黎明或黃昏時看白海豚，因為那段時間牠們是最活躍的。


[編輯] 外部鏈接
中華白海豚
pepa.com

Chung Wa Bak Hoi Tuen
Ho Cheung Ho chung
In SEA
eat fish