Category of Organisms Marine Mammals
Kingdom Animalia
Phylum/Division Chordata
Class Mammalia
Order Cetacea
Family Delphinidae
Genus Tursiops
Species truncatus
Binomial Name
Tursiops truncatus
Author Montagu, 1821
Common Name Bottlenose dolphin
Local Name  
Size Range
6.6 and 13 ft ong, Males are generally larger and heavier than females. In most parts of the world the adult's length is about 2.5 metres (8.2 ft) and weigh between 150 and 650 kilograms (330 and 1,400 lb).
Environment/Habitat
Common bottlenose dolphins tend to be primarily coastal, but they can also be found in pelagic waters (Wells and Scott 1999). Where distinct ecotypes are known, the inshore form frequents estuaries, bays, lagoons and other shallow coastal regions, occasionally ranging far up into rivers. The offshore form is apparently less restricted in range and movement. Some offshore dolphins are residents around oceanic islands. In many inshore areas bottlenose dolphins maintain definable, long-term multi-generational home ranges, but in some locations near the extremes of the species range they are migratory. Off the coasts of North America, they tend to inhabit waters with surface temperatures ranging from about 10°C to 32°C (Wells and Scott, 1999). Black Sea bottlenose dolphins are common over the continental shelf; they sometimes occur far offshore (Birkun 2006).
Importance/Value
 
Resilience
 
Endemic No
Found in Marine Park No
Found in Malaysia Yes
Distribution
 
Morphology/Character
It contrast to most other dolphins, its jawlines are slightly curved upwards into a characteristic “permanent smile”. the dorsal fin is falcate and has a relatively broad case. the flippers are relatively long and slim, and have pointed ends. the back edge of the fluke is concave and has a well developed median notch. the colouration is variable, usually grey to dark-grey, underside blue-grey but fades with age. often has a barely visible dark-grey blaze running from the melon to the eye, flippers and blowhole.


Biology
Sexual maturity: females at 5-7 years, males at 10-15 years.
Gestation period: 12 months
Calving interval: 2-3 years
Size at birth: 1-1.3 metres, weight at birth: 20.4kg
Nursing period: 12-18 months
Teeth: 40-52 conical teeth in upper jaw, 36-48 in lower jaw
Miscellaneaous
 
Status in IUCN Red List Least Concern (LC)
Status in CITES Species Database II
Researcher(s)  
Reference(s)
RALF KIEFNER, WHALES & DOLPHINS CETACEAN WORLD GUIDE, PUBLISHED BY IKAN, Page: 222-226
Other Link(s)
Collection Record