我想要中華白海豚ge資料~急需!

2007-01-02 7:19 pm
要英文~講What does it look like?,HOW does it move?,..............................................
更新1:

最好有中文

回答 (3)

2007-01-02 7:24 pm
✔ 最佳答案
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 subspecies 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 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.
2007-01-02 7:36 pm
英文:

Local Residents of Hong Kong- Chinese White Dolphin


Not too long ago, when the Hong Kong public heard about the “Chinese white dolphin”, they only had the idea that it was the mascot for the Hong Kong Handover in 1997, and at that time some even thought that it was merely a cartoon character. The others may believe that Chinese white dolphins are endemic to Hong Kong and soon to be extinct, thanks to the incorrect information released by some local media and environment groups. Luckily, the tide has turned. In the last few years, through the education and publicity programme organized by the Hong Kong government and extensive coverage by local newspapers and media, the Chinese white dolphin has now become the most celebrated creature in Hong Kong. Many members of the public are quite familiar with the knowledge of the dolphins, and some have even participated in the local dolphin-watching tours organized by private operators or NGOs to appreciate the beauty of Chinese white dolphins and their unique pink colour!



Profiles of Chinese White Dolphins
Name : The name “Chinese white dolphin” is given by the local people in southern China, and actually its official common name is “indo-Pacific humpback dolphin” and its scientific name is “Sousa chinensis.” Local fishermen used to call them “Mazhu fish” (meaning the fish of the sea goddess), while others may call them “black taboo” and “white taboo.”



Distribution : Chinese white dolphins are mainly distributed on the western waters of Hong Kong. Their major habitats include the waters north and west of Lantau Island. In the summer and autumn, they also occur in waters south of Lantau Island. In addition, the dolphin population is also distributed throughout the Pearl River Estuary to the west of the Hong Kong border, from Neilingding Island in the north to Guishan Island in the south, and extending westward to waters near Zhuhai and Macau. There are even sighting records of Chinese white dolphin occurring in Modao Men and further west.



Researchers in Hong Kong use several methods to study different aspects of the dolphins. For example, they conduct boat surveys to study the abundance and distribution of the Chinese white dolphins. The research vessel will follow designated routes for researchers to look for dolphins, and at the same time they will record some important information once they see the dolphins. Land-based surveys are also conducted using high power binoculars to observe the dolphins from a heights on land (e.g. Sha Chau ) . From land, researchers can observe the dolphins’ behavior , dive patterns and distribution. They also use helicopter occasionally to search for dolphins in a large area within a relatively short period of time.

中文 :

原名印度太平洋駝背豚的海豚,亦是我們常稱呼的中華白海豚。
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
氾。
而在香港,主要在大嶼山以北及以南,屯門以南的水域。
牠們也出現於香港以西的珠江河口水域。
因為海洋生物的統計比較困難,而大概在香港及華南沿海有大約千多條。
2007-01-02 7:30 pm
中華白海豚是世界上七十八種鯨類品種之一;為統一起見,各地學者都稱牠們為「印度太平洋駝背豚」(學名為Sousa chinensis),而「中華白海豚」只是香港及中國居民給牠們的本地稱號。中華白海豚屬於鯨類的海豚科,是寬吻海豚及殺人鯨的近親。很多市民及漁民均以為中華白海豚是一種魚類,其實牠們以及其他鯨魚及海豚都是哺乳類動物,像狗、猴子和人類一樣能夠恆溫、用肺部呼吸、懷胎產子及用乳汁哺育幼兒。

 

 

中華白海豚是香港的原居民,牠們在香港水域出現可能比我們的袓先還早。於一六三七年,中華白海豚首次於西方文獻出現,當時探險家彼得‧文地詳細描述珠江口的白海豚。此外牠們在我國清朝的文獻亦有所記載。除了中華白海豚,江豚是另一種本地常見的鯨類,牠們全年均在香港及鄰近水域生活。


很多人第一次看到中華白海豚時,都會不約而同地問:為什麼中華白海豚是粉紅色的?其實牠們是各鯨類品種中,兩種擁有粉紅體色的其中一種(另一種為生活於亞馬遜河的「亞河豚」)。雖然有人認為牠們粉紅的體色是由表皮色素所致,但另一較為可靠的解釋是:當牠們活動的時候,表皮的血管會澎漲以便有效地散熱,鮮紅的血液令皮膚白裡透紅而呈粉紅色,就像我們運動時面部紅潤一樣。

其實中華白海豚出生時是灰色的,當牠們長大到少年階段時,體色會漸轉粉紅色及滿佈灰色斑點,到成年時牠們的體色便轉為粉紅白色,而身上的斑點也逐漸消失。專家相信雄性的灰色斑點較雌性為多。

 

中華白海豚面對哪些危機?

經過長達五年多的時間,我們從擱淺海豚的屍體發現牠們正受到不同的人為活動所威脅及影響:

一) 漁民誤捕:

中華白海豚有時候喜愛跟隨漁船後覓食,雖然牠們可享用得來容易的一餐食物,但同時卻要面對生命的危險,因為牠們有可能會被漁網纏繞,以致不能游到水面呼吸,活活的被海水淹死。

二) 船隻撞擊:

雖然中華白海豚能利用精密準確的回聲定位系統,有效地探測身邊的環境,但仍然有機會被來往中港澳三地的高速船隻所撞倒。

三) 水質污染:

水質污染對海豚的直接影響雖較難證明,但從牠們身體中積存的有害污染物的濃度,如有機化氯物及重金屬等,便知道這些污染物可能正影響白海豚的健康。中華白海豚吃了受污染的魚類,把沒法分解的污染物積存到身體的皮下脂肪及內臟。雖然這些污染物不會使海豚立即死亡,但卻能弱化牠們的免疫系統,影響牠們的健康。

四) 生活範圍縮窄:

沿岸的填海工程會使中華白海豚的生活範圍逐漸減少,而與填海工程有關的海床挖沙,可能會挖起沉澱海床的污染物,令水質污染加劇。

五) 水底噪音:

海豚常出沒的地方其實相當嘈雜,船隻的行駛及水底的工程(尤其是打樁及爆破工程)會製造大量的水底噪音,影響海豚的日常生活。


中華白海豚是在香港與南中國海域一帶生活的鯨類動物,十分美麗可愛,皮膚淡白裡透粉紅,喜歡在香港的大小島嶼游來游去,牠們其中一個集結地點是位於大嶼山以北水域,以及圍繞龍鼓洲和沙洲的水域,這種白海豚又叫「粉紅海豚」,在本港海域已定居了好幾百年。



中華白海豚的外貌
中華白海豚身體光滑,沒有毛髮,能減低在水中游泳時所產生的阻力,流線形身體,令牠們在水中的活動更加流暢自如。如果想了解多些有關中華白海豚的外貌,可到以下網址瀏覽:

http://crucial.ied.edu.hk/dolphin/cchrcter.htm

中華白海豚的生活習慣
中華白海豚喜歡住在岸邊較淺水的地方活動,牠們的生活習慣能與潮水漲退和日出日落的時間配合:潮漲時,亦正是牠們忙於獵食的時刻,而牠們最活躍的時間是黎明與黃昏。牠們的食物主要是活在海灣的小動物,例如:魚、魷魚、磷蝦等等。你可到以下網址了解牠們更多的生活習慣:

http://crucial.ied.edu.hk/dolphin/chabit.htm

中華白海豚受到的威脅
在香港,中華白海豚的生命卻遇上不少威脅,例如:失去居所、食物嚴重短缺、海上交通頻繁、海水受污等。以下網址有更多這方面的資料:

http://crucial.ied.edu.hk/dolphin/cthreat.htm

齊來保護中華白海豚
其實,保護中華白海豚的方法是有不少的,例如:政府可增加保護海豚的保護區、加以管制航道及水上運輸、加強打擊違例捕漁者、增加清理污水及污泥的次數等。要有效地實施以上的措施,除有賴政府的支持外,同樣需要你們的合作。只要你們進入以下的網址,就可更深入了解拯救牠們的方法:

http://crucial.ied.edu.hk/dolphin/csave.htm

2007-01-02 11:31:06 補充:
在 廈 門 ,中 華 白 海 豚 普 遍 被 稱 為「馬 祖 魚」 或 「鎮 江 魚」。 因 為 牠 們 大 多 在 春 天 接 近 馬 祖 誕 的 期 間 , 進 入 九 龍 江 水 域 。 漁 民 們 認 為 牠 們 是 為 了 朝 拜 馬 祖 而 來 的 , 所 以 稱 牠 們 為 「馬 祖 魚」 。 同 時 , 又 因 為 有 牠 們 出 現 的 時 候 , 通 常 都 風 平 浪 靜 , 所 以 亦 叫 做 「鎮 江 魚」。


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