The Great White Shark Story! Economic Value
There are almost 350 kinds of sharks of which only 30 are considered dangerous to humans, and on top of this 30, only 4 kinds are the most lethal among all. Moreover, on top of this terrorist group there comes our friend The Great White Shark.
Its Latin name is: Carcharodon carcharias . The reason of its name is the white color on the abdominal area, but the color of its back is grey slightly grading to azure.
The white shark is located in warm and cold water alike, near the shore and in a depth of 700 meters and more.
Its average length is between 2 to 3 meters, and it might grow bigger to reach 6 meters. Its weight is almost 3 tons and can live up to 30 years!
This shark has an iron jaw and two rows of sharp teeth which change periodically. Its tooth, size of 7 CM, as below in the picture, is triangular with small, protruded tips to easily slice the prey.
The shark is boneless and instead of a skeleton, we can find only cartilages. It continues swimming to let water enter the gills where oxygen is extracted. Besides, it has big kidney that contains oil to help the body float. The skin combines both strength and elasticity, with a rapid gift of healing wounds quickly.
It feeds on fish, smaller sharks, big preys like sea lion, whale babies, dolphins, sea turtles, as well as floating corpses, ports and ships debris or garbage.
When attacking its prey, in a high speed of 40 Kilometers per hour, the white shark deliberately devours a large part of the prey’s lower part, leaving it bleeding and losing strength to become vulnerable.
The White Shark Economic Value:
All sharks have great economic values specially our buddy the white shark which are:
-A rich resource of multivitamins specifically vitamin A. Research confirmed that small liver oil portion helps those who have hypertension.
-The teeth are considered very expensive, sometimes; one tooth is worth up to $10000. This tooth is used as a necklace, and in some parts of Africa, they use it to make a spear or an arrow.
-Its skin is used to make shoes, purses and leather wallets because the sharkskin is 11 times stronger than cow skin.
-Its flesh has become very appealing where they use it to prepare popular and expensive soup.
- Since 1950, sharks have been studied by scientists where the focus was on the immune system. It’s amazing to know that sharks are the only creatures that are immune against cancer, which might lead scientists someday to figure out a cure for this tumor.
- Sharks help preserve and clean nature thru feeding on sick or infected fishes in addition to their role as scavengers by consuming garbage from vessels, ships and ports.
Due to the increasing attempts of hunting them in the last decade, sharks became endangered species and are protected by many governments like South Africa, Namibia, Australia, Malta, California and Florida.
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