The Big White Shark (Carcharodon carcharias) is part of the Lamnidae family, the Lamniformes order. He belongs to a very fast s family of fishes and is known as the largest carnivore on the ground after the whale. It is a fish with a large territory that lives in the Atlantic, Indian and Pacific Oceans. It can be found from the tropics to the polar circles in the deep waters.
They are among the most famous and known shark species. It can be found in foreign or specialist literature under the names: White Shark, Great White Shark, White Death, Australia White, Great White Dog, Great White Shark, white pointer, white shark, or white death.
At present the number of sharks is decreasing and the species is vulnerable to being extinct. Brazil, Namibia, South Africa, California and Australia have been given laws to protect this shark species. A white shark tooth was sold with $ 1,000 in Australia, and a full set of teeth $ 20,000.
The vast majority of sharks die in commercial fishing nets. Other million sharks are hunted annually to satisfy rich people. No white shark lives in captivity for more than one to two weeks.
A study in 2014 estimated the white shark population in the coast of California to 2400 copies. The white shark is known as the “ocean gentleman”!
White Shark’s Food
The Great White Shark is a dreadful predator for both man and his prey. It feeds on a large amount of food because it is greedy. The food is made up of a wide variety of fish, other sharks, sea birds, turtles, mammals (seals, sea lions, otters, etc.).
The preferred attack method is from the back. He comes with speed and bites prey causing fatal injuries. Eventually it dies because of the loss of too much blood. The food is torn and swallowed. A meal of a lion’s size or a seal can starve for a month.
White Shark’s Aspect
The great white shark is matured at a length of 6.5 meters and a weight of nearly 2500 kg. One of the reasons it is known is its impressive size. The ancestors of this fish were three times bigger, reaching more than 8 meters in length, the weight of 3300 kg and the teeth of 16 cm. The mouth ends with several teeth. When it is left without a tooth because it falls or loses it when biting from a boat another takes its place. The eyes are black.
He has five gills to breathe. The body is dark gray on the back and the belly is white. The mouth has about 3,000 teeth arranged on several rows. It uses the front lines when attacking. The last two rows replace the others with the time they fall, break or spill. A shark changes into a life of up to 26,000 teeth. This is because they are not caught by a bone plaque or in the alveoli but are caught in a fibrous membrane.
Like many fish species, sharks also have no warm blood. They have a rich network of blood vessels, called a miraculous network, located in the muscle, which increases the body temperature by 10 degrees above the temperature of the environment. Eyes are not very well developed, day use is more. He has the ability to rotate his eyeball and is generally curious.
The eyes are protected by a very thick membrane. Scratches can be seen around the eyes, but not on the eyeball. The animal can also see outside the water. It is said that sometimes it takes off the head to observe the surroundings.
Instead, the smell is very well developed. Sharks can feel the blood from far away. It is said that a shark can feel a drop of blood from 7km (if favored by currents). Because of the very developed senses it is called “nose that swims” or “ears that swim”. It has a “listening system” that detects vibrations. With Lorenzini ampoules (small canals near the nose) they can detect the electric fields emitted by the heart beats. It is said that sharks have these organs so sensitive that they know where the north and south are.
It is said that due to the curved triangular swings in the back and the fusiform body these sea monsters sink into the water like torpedoes. The symmetrical tail (as opposed to other shark species that have asymmetric tail) is a rare shark. The shark’s most valuable goods are the huge conical head and the mouth full of teeth.
White Shark’s Behavior
The big white shark can be easily identified by white spots, size and shape of the teeth. Shark uses the teeth on the lower jaw to hold prey and teeth on the jaw (in triangular shape) to tear the prey. A shark over 6 meters can bite with a force of 10,000 Newtons.
It is an active diurnal fish. It is considered by humans to be one of the most dangerous sharks because of its size, aggressive behavior, swim in deeper water in search of food and its weapon (teeth).
Although it is considered one of the most dangerous sharks, it is not at all. Many divers have said it is a curious but predictable fish. Those who have had the opportunity to live and see or study a big white alive shark say they are a gentleman of the oceans. This fish inspires respect, not fear, but the world does not know that.
The white shark became popular in Steven Spielberg’s famous Jaws, which appeared in 1975. Since then, he has been studying. It is a agile, intelligent and powerful shark. A labeled copy was tracked over a distance of 19,000 km. The Acerita surface is smaller, but it is so big. The shark descended to a depth of 900 meters. This means that it has the ability to swim in various temperature waters.
The shark’s average shunting speed is 30km / h, but when it comes to a prey it can reach 60km / h. It is a great effort and a huge energy consumption if you think this animal has over 2,000 pounds. Let’s hope that people’s behavior will be positive in the future and scientists will be able to study the unique and fascinating behavior of this fabulous fish.
Diving tourism is frequented in South Africa, Southern Australia and California. These practices of observe sharks begin to gain popularity.
Shark is a sea sanitary. It cleans the oceans of dying or sick lives. A shark population means large oceans and large ones.
White Shark’s Reproduction
Little is known about the shark mating season. He does not resist captivity, and his study in the natural environment is difficult. The mating season seems to be in the spring-summer. It is said that the big white shark reproduces twice in life.
Unlike many other fish species that spawn in sharks, fecundation is internal. Male sharks have two copulation organs called ptergopods that use them to transfer sperm to the female body. These organs are used in turn because the female has one genital organ.
After the gestation period the female gives birth to 9-11 baby sharks. The white sharks are ovovipari, that is, they give birth to live babies. The little one gets his birth responsibilities. He comes to the world with a pair of teeth that help him feed himself.
The length of the little shark at birth is about 1.4 meters. After birth they have no contact with their mother anymore. It is assumed that the shark would have the longest gestation period of all terrestrial animals.
New South Australia researchers have torn shark babies less than 3 meters high and have noticed that they avoid attacking large fish or seals due to jaws and teeth too loose for such large noises.
It seems that the species has a much faster body growth than the natural strengthening of the cartilage. For this reason, young sharks have to be satisfied with smaller fish or feces in the first 15 years of life. Sexual maturity is reached at the age of 15.
After an analysis it was found that the maximum age that the great white shark can reach is 72 years. An age evaluation of vertebrate rings has also been attempted, but this method is not very accurate because sharks have periods of stagnation in development. The life expectancy is 40-70 years.