Thursday, July 26, 2007

Whitetip reef shark

The whitetip reef shark, Triaenodon obesus, is a requiem shark of the family Carcharhinidae, the only member of the genus Triaenodon.
Contents
[hide]

* 1 Habitat and distribution
* 2 Anatomy and appearance
* 3 Diet
* 4 Behaviour
* 5 Reproduction
* 6 See also
* 7 References
* 8 External links

[edit] Habitat and distribution

The whitetip reef shark is one of the most common sharks found in shallow tropical and warm temperate water around coral reefs in the Indian and Pacific oceans. It occurs at depths down to 330 m.

[edit] Anatomy and appearance
Whitetip reef shark head.
Whitetip reef shark head.
Whitetip reef shark.
Whitetip reef shark.

As its name suggests, the tips of the shark's first dorsal fin and upper caudal fin are white. The upper body is grey/brownish. Their average length is about 140 to 160 cm and the maximum reported length is 244 cm. Its head is broad and flat.

[edit] Diet

The whitetip reef shark feeds primarily on crustaceans, octopuses and fish.

[edit] Behaviour

This bottom dwelling shark is nocturnal and is often seen resting on the bottom during the day, sometimes in small groups. It is not aggressive and will generally swim away if disturbed, although it may bite if harassed. At night it hunts among crevices in the reef.

[edit] Reproduction

Reproduction is viviparous, with 1 to 5 pups in a litter, the gestation period being at least 5 months. The shark's size at birth ranges from 50 to 60 cm. It is estimated that this shark can live for about 25 years and it reaches maturity after about 5 years.
SOURCE:WIKIPEDIA

No comments: