Blue shark: the description of the species, habitat, origin and characteristics

Blue shark… At the mention of the phrase the heart of many of the divers starts to beat faster. These majestic predators have always been enmeshed in an aura of mystery and terror. About the size and power of their jaws is legendary. So dangerous are these sea monsters, and what really lies under the guise of bloody murderers? Perhaps you should start with the fact that this predator is the most common representative of its family in the waters of the World ocean.

Amazing colour

It belongs to a subspecies of the gray sharks, which have always been known for its predatory grip and high speed. The name of his fish shark (blue) has received, like many others, as a result of its bluish-blue color. Her back is mostly dark blue, sides pale blue; the belly is white. More recently, the dweller of the deep was one of the most common fish on the planet. But today, the population of these majestic and graceful predators are rapidly declining. Perhaps soon their population reaches a critically low level. Because more and more cases, when the network to experienced sailors get very young individuals who have not had time to get posterity.

Blue Shark: habitats, origin

Habitat of these sea Queens is limited to mainly the Indian and Pacific oceans. This suggests that this species is thermophilic committed to the calm waters. However, from time to time notice them in areas of Argentina or New Zealand. In constant search of prey blue shark may be in the waters near Norway, or even Iceland. Unlike his many relatives, she seldom migrates over long distances. When there is a sufficient amount of food is favorable climatic conditions, the probability that this species will go on a long journey on the seas and oceans, is relatively small.

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Structure of a body and a comfortable water temperature

The predator prefers a comfortable temperature, which can vary between zero temperature: from 7-8 to 15-16 degrees Celsius. It is logical to conclude that a similar mode is not typical for deep oceanic waters, where even the sun's rays penetrate with difficulty. Therefore, the blue shark prefers the upper layers of the water. Despite all his skill and rapidity, it is not submerged to a depth of more than three hundred meters. The individual who grew up in comfortable conditions, can reach a length of four meters, weighing about four hundred pounds. This kind from his other relatives has a rather slim physique. Some would call it a spindle. However, despite its compactness, the blue shark has a relatively large and powerful pectoral fins. Due to this light weight and strong muscles, this predator can develop in the water dizzying speed.

Standard diet

What can you say about the diet of these explorers of the deep sea? This factor depends on the habitat, namely – coastal or more remote oceanic areas. At various depths there are a variety of marine life, so in search of food sharks have to take into account this natural factor. And they perfectly cope with this problem. Away from the coast blue shark feeds on small fish: herring, mackerel or sardines, sometimes in your diet includes squid. The coastal area is more rich in wildlife than the depths of the sea. So near the shore, you can often profit from small fish, waterfowl and waste, which makes the blue shark. Description of its Maritime exploits often admired. And this is with the proviso that it is not practically distinguish between colors! However, this lack of full kompensiruet impeccable sense of smell and a remarkable contrast perception.

Now a little bit about how the blue shark reproduces. A description of many scientific publications suggests that this species belongs to the viviparous sharks. Pregnancy lasts on average from nine to twelve months. A distinctive feature is the number of newborns sharks. There may be from four to a hundred! Mother prefers to breed in warm coastal waters. Despite the large brood, in the future, swimming out only a few. It is often linked with illegal fishing, as a result of which the poachers caught a lot of young and immature individuals.

Blue shark and people

Perhaps, not only man is a threat to the predator, and Vice versa. Blue shark poses a direct and serious danger to human life. The probability of an attack or, so to speak, an accident is particularly great in the vastness of the open ocean. After a shipwreck or other man-made disaster of the person is one-on-one with the elements. And the blue shark will not miss the chance to profit of fresh prey. Susceptible to this risk are also scuba divers and careless bathers. Shark may be lurking in the attractive warm waters and quiet lagoons. Once in the teeth to the shark, in most cases, you can immediately say goodbye to life. Their powerful jaws are built so that to get an integer from the jaws is virtually impossible.

Razor-Sharp front teeth and another concave inside. Their triangular shape resembles a small sharp daggers. An interesting feature are the small furrows which are located on the face of the toothy predator. Their main function-to enhance the sensitivity of receptors that detect odors. Thanks to this shark can smell blood or the scent of prey at great distances, which sometimes exceed tens of kilometers.

On the verge of extinction

Whatever it was, the blue shark – this is a beautiful and strong animal, which causes the person much less damage than it. Soup from the spark fins, so beloved by many foodies, caused their mass extermination. The authorities are taking all possible measures. Despite this, the population of these majestic marine inhabitants inevitably decreases. Unfortunately, everything depends on the conscience of each person individually. However, there is still slim hope that the blue shark will never disappear from the pages of history.