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Smooth Hammerhead Shark

Threat Level:  low

 

 

 

  • SMOOTH HAMMERHEAD SHARK

Scientific name...........Sphyrna Zygaena

Family name.............Sphyrnidae

 

  • GENERAL DESCRIPTION

The Smooth hammerhead shark is a large hammerhead with a hammer-shaped head without a notch at the centre of the curved head. The first dorsal fin is moderately high, with a slightly curved margin, second dorsal and pelvic fin low. The pectoral fins are short and straight along the rear margin, while the anal fin has prominent notch.

 

  • SIZE

These sharks can attain a maximum length of ( 8 to 13 feet ). Males mature at ( 8.2 to 8.5 ) feet and females mature at ( 8.7 feet ).

 

  • COLOR

They are an olive-gray or dark gray-brown above, white below, undersides of pectoral fin tips dusky.

 

  • FEEDING HABITS

The smooth hammerhead shark feeds on small schooling bony fishes such as herring and menhaden, as well as porgies and sea bass from the reef , and stingrays, skates and other small sharks. Large crustaceans and cephalopods round out the diet.

 

  • BEHAVIOUR

These sharks occur singly or in huge migratory schools. Younger sharks ( 4.8 feet ) are more often found in large schools than the adults.

 

  • HABITAT

Found in Western and eastern North Atlantic, western Indian Ocean, western, central, and eastern Pacific. The smooth hammerheads is found in nearly all warm temperate and tropical waters. And while its distribution overlaps that of the scalloped hammerhead and great hammerhead, the smooth hammerhead is mostly concentrated in temperate waters. It seems to prefer shallow inshore waters less than 65 feet deep, and divers are especially likely to see it around rocky reefs.

 

  • REPRODUCTION

These sharks are viviparous, giving birth to large numbers of live young, between 29 and 37 pups per litter. The pups are about 22 inches long at birth.

 

  • SHARK ATTACKS

Potentially dangerous. It is usually shy and difficult to approach, although, it may make close passes or may even display aggression in baited situations.

 

  • POPULATION REPORT

Common.

 

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