Indo-pacific Hump-backed Dolphin 
 
 
Scientific Name:
Sousa chinensis
Other Names and/or Listed subspecies:
Chinese White Dolphin
Group:
Mammals
Status/Date Listed as Endangered:
NT-IUCN: 2008
Area(s) Where Listed As Endangered:
Africa, Asia, Australia, Middle East, Oceanic, South America

The vulnerable Indo-Pacific hump-backed dolphin is a mammal from the family Delphinidae. It is commonly identified with names such as Chinese white dolphin, Indian Ocean dolphin, Sousa, and pink dolphin. It measures an average of nine feet in length and weighs an average of 600 lbs. Males are generally heavier than females. This species possesses a distinct hump at the dorsal fins base as suggested by its name. Its color varies by stage of development and geographical region. Generally the young are grayish on the back and adults are gray with a pinkish tinge on the same part. The ventral side in both adults and young is lighter. It has a sturdy body with a beak that is long and relatively narrow. A round-shaped melon extends downward to this beak. It has large and well rounded flippers.

The Indo-pacific hump-backed dolphin feeds on fish living in reef environments, estuarine fishes, and it also follows trawlers and feeds on organisms trapped in them. It also feeds on cephalopods but rarely feeds on crustaceans. It lives in tropical areas and warm areas, bays and open coasts, rocky reefs, sand banks and mud bunks areas, and mangrove swamps. Birthing among Indo-Pacific hump-backed dolphins peaks in May and June. The speices, however reproduces throughout the year. After a gestation period of 10 to 12 months, one calf is born by the expectant female. The calf is dark gray in color when born. The mother nurses this calf for about five years.

Threats facing Indo-Pacific hump-Back dolphins include overfishing leading to exhaustion of stocks of fish which the species relies on for food, boat traffic, being caught in fishing gillnets and trawls, use in the by-catch industry, environmental pollution, and disturbances by activities such as bridges constructions and underwater explosions. Conservation actions include listing in Appendix I of CITES, long-term monitoring and assessment of environmental impact in Chinese waters in the mainland, and in Hong Kong there is establishment of several marine parks. No data exists on the estimated world population total. There is a continued decline in numbers of this species in areas where it existed natively. These conservation measures have helped the species, but it remains under-protected in most of the areas where it occurs.




Wikipedia Article

This article is only an excerpt. If it appears incomplete or if you wish to see article references, visit the rest of its contents here.
Wikipedia Article
Copyright Notice: This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Chinese white dolphin".

Featured Article

Eight Species Declared Extinct But May Still be Out There
1. Tasmanian Devil
The Tasmanian devil is endemic to Australia. Although this species is called tiger (named for its stripes) and wolf (due to its canid-like appearance), it is not a member of the cat or wolf family. It is a member of the marsupial family. Other members of this family include kangaroos and koala bears.

The last known Tasmanian tiger died in a zoo in Hobart, Tasmania in 1936, but there have been hundreds of unconfirmed sightings, and a reserve has been set up in Southwestern Tasmania in the hopes that possible surviving individuals can have adequate habitat.

Read More...


Endangered Species of Our Planet

Donate, Adopt, Get Involved

EEC Conservation Directory
Donate

Mailing List

Would you like to receive a notice and link when the new Creature Feature is posted?

Enter your e-mail address below:

 

Fun & Games

Are you inspired by endangered animals? Check out our games and coloring pages! More to come soon.
color endangered creatures
play hangman