Tuesday 21 May
Sand tiger shark (Carcharias taurus)
- A sand tiger shark’s teeth are still visible even when its mouth is closed.
- Sand tiger sharks have receptive pores on the underneath of their snout which detect electric currents in the water.
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Sand tiger shark fact file
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Sand tiger shark description
This stocky shark has a conical nose and a slightly flattened head (3). It is a dark brown or beige colour above, with blotches of darker colour, and paler underneath (4). The teeth of this species are especially distinctive, having a fang-like appearance and being visible even when the mouth is shut (5). There are two dorsal fins, which are a similar size to the anal fin; the upper lobe of the tail is larger than the lower one (3). Sharks have a sixth sense that enables them to detect electric currents, and the receptive pores are located on the under surface of the sand tiger's snout (5).
- Also known as
- Grey nurse shark.
- Requin Taureau.
- Toro Bacota. Top
the National Marine Fisheries Service:
- Anal fin
- In fish, an unpaired fin on the under surface of a fish, behind the anus.
- Dorsal fin
- In fish, the unpaired fin found on the back of the body.
- Method of reproduction whereby the egg shell is weakly formed and young hatch inside the mother; they are nourished by their yolk sac and then born.
IUCN Red List (April, 2009)
Fishbase (July, 2002)
National Marine Fisheries Service (July, 2002)
- Burnie, D. (2001) Animal. Dorling Kindersley, London.
Australian Museum (July, 2002)
- Bannister, K. (1989) The Book of the Shark. Quintet Publishing Ltd, London.
Sydney Aquarium (July, 2002)
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Sand tiger shark biology
The sand tiger shark is one of the best-studied of the shark species. They are the only sharks known to gulp air at the surface and store it in their stomach to provide buoyancy (2). These sharks generally mate between October and November and courtship can take a long time, with the male aggressively nipping his potential mate (3). Females are ovoviviparous, giving birth to two large pups every two years. Pups hatch out of their eggs within the oviduct of the mother's reproductive system, one in each oviduct, and then feed on eggs that the female continues to produce (6). Over nine months to a year, the pups grow within their mother feeding on hundreds to thousands of eggs (6) and, by the time they are born, measure up to a metre long (3).
During the day they are found near caves and ledges (5), hovering just above the surface either singly or in small groups (3). These fairly docile sharks are sluggish and, despite a ferocious reputation, feed mainly on fish (5).Top
Sand tiger shark rangeTop
Sand tiger shark habitat
Inhabits shallow coastal waters from the surf zone to a depth of 60 metres (5).Top
Sand tiger shark status
Classified as Vulnerable (VU) on the IUCN Red List (1).Top
Sand tiger shark threats
This species of shark is particularly vulnerable to overfishing due to its low reproduction rate (2). Despite a widespread distribution, populations are now isolated and, where there is data available, the species is thought to be in decline. In the past, the sand tiger shark has been hunted throughout its range, and the flesh is particularly prized in Japan (3). The oil and fins are also in demand; in the 18th and 19th Centuries the shark was persecuted in large numbers for its liver oil that was used in lighting (7). Individuals tend to group in coastal areas at certain times of the year, making them especially vulnerable to fishing (3).Top
Sand tiger shark conservation
Despite protection in some countries such as Australia (2) and the United States (3), this species appears to be in decline (2). Management plans urgently need to be implemented in order to safeguard the future of these elegant coastal dwellers.Top
Find out more
For more information on the sand tiger shark see:
For further information on the conservation of sharks and rays see:
This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact:
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This species is found in Barrow Island. Visit our Barrow Island topic page to find out more.
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