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Finless Porpoise

Page history last edited by PBworks 16 years, 5 months ago


Finless Porpoise



Sherianne Penner










Where in the world is your animal found?
  Yangtze River                        
What is the diet of your animal?
 Fish, Krill,
Crustaceans, squid   
What is the habitat of your animal?
 Yangtze River
Is your animal a herbivore, carnivore or omnivore?
Is your animal a primary, secondary or tertiary animal?
Who are your animals main predators?
Why your animal is endangered?_________________________    
 The Yangtze River
Finless Porpoise is      
being killed because  
of dams, fast moving 
vessels, dynamiting,   
electrofishing             and pollution.              




 "Finless Porpoise." Finless Porpoise. 13 Dec. 07. Baiji.org foundation. 14 Dec. 2007

"Common Name:." Finless porpoise Description. WDCS. 10 Dec. 2007 <http://www.wdcs.org/dan/


Its Latin Name

Neophocaena phocaenoides

 Some other names of the Finless Porpoise

Black porpoise, Jiangzhu


Finless porpoises are one of the smallest cetaceans. They are generally shy, apart from those living in the Yangtze River, China. They are similar to Irrawaddy dolphins save for the fact that they don't have fins. They are pale grey-blue in colour with a small mouth that curves slightly upwards and a slight depression behind the blowhole. They are the only porpoises to have a bulbous melon. Instead of a fin, they have a ridge along their backs which runs from above the flippers to the beginning of their tail stock. This ridge is covered in circular wart-like tubercles or bumps.


When they are born, finless porpoises are between 60 and 90cm (24 - 35in) long. They then grow to an adult size which is only a little bit longer: between 1.2 and 1.9 metres (4ft - 6ft 3in) in length.


Newborn finless porpoises weigh about 7kg (15lb), and adults weigh between 30 to 45 kg (65 - 100lb).


Finless porpoises are quite active animals, usually swimming just beneath the surface with sudden, darting movements. They cause little disturbance when they rise to the surface, and they tend to roll onto their sides when doing so. They have been known to spyhop, but are rarely seen breaching.




Comments (8)

Anonymous said

at 2:39 pm on Dec 12, 2007

Nicely Done Sheri!


Anonymous said

at 1:05 pm on Dec 14, 2007

I like your picture.

Anonymous said

at 1:05 pm on Dec 14, 2007

aww! they're so cute!!!

Anonymous said

at 1:09 pm on Dec 14, 2007

Cute. I really like how you worked in the colour. It really accents the animal.

Anonymous said

at 1:09 pm on Dec 14, 2007

how old does it get to be?

Anonymous said

at 1:10 pm on Dec 14, 2007

Cute Picture!!

Anonymous said

at 3:17 pm on Dec 14, 2007

The finless dolpin is so cute!

Anonymous said

at 8:25 pm on Dec 16, 2007

Well done. I like your pictures and facts!

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