Find out everything about the fascinating tubarões

The tubarão is a cartilaginous fish, we can highlight that because of being carnivores, they become superior.

And that's why we occupy the top of the food chains two marine environments.

We inhabit the most diverse ocean environments, from the coast to great depths and different temperatures.

Generally there are animals that have a large size. Some species can reach a 20 m compression.

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Main characteristics of two tubarões:

• Sensory system: apresentam visão bem desenvolvida; sharpened sense of smell, we can sense certain odors at great distances; presence of lateral lines, which detect vibrations. 

• Reproductive system: Due to internal fertilization, they can be oviparous, ovoviviparous or viviparous. In some species, there is cannibalism between embryos.

• Digestive system: It presents a ventral mouth with teeth arranged in threads, which can be replaced during life; cranial mobility (cinese craniana), which allows feeding on large prey.

• Respiratory system: brachial respiration is displayed and swimming is not displayed.

Since there is no fat, or fat, due to a large amount of fat, it helps in the flu.

Some species of tubarão

White-headed tuber

First of all, the tubarão-branco is the most feared species for being a large predator, being able to hunt at about 6 m depth.

In addition, it is found mainly in waters of temperate regions and in various marine regions.

And, we can go from the surface to regions with more than 250 m depth, enter bays, regions of saline estuaries and high seas.

This species feeds on other fish, as well as chelonians, cephalopods, aquatic birds, among other animals.

Tiger-Tube

It is also a species with a wide distribution of the globe, found mainly in tropical and subtropical regions.

It lives in various regions of the marine environment, mainly at about 100 m depth.

The largest individual recorded at the moment appeared about 7 m deep. It feeds on fish, cephalopods, crustaceans and birds.

Tube-baleia

The tubarão-baleia is characterized by its size, being able to reach a 20 m compression and 42 tons, measurements of the largest individual already registered.

Generally, it lives in fish spawning regions, and where there are concentrations of zooplankton.

Hammerhead

The tubarão-martelo has this name due to its flat head, which favors swimming, vision, smell and the detection of electromagnetic fields.

Oh, the electromagnetic fields help us perceive the presence of another animal.

The tubarão-martelo has a very widespread distribution, inhabiting the most diverse regions. Their size varies according to the species and can be reached up to 4 m in width. 

This species feeds on other fish, mainly teleost fish, lulas and crustaceans.

Tubal attacks

Despite many people being afraid of suffering a tubarão attack, only a few species that represent some perigo, and attacks are relatively rare.

Brazil is in ninth place on the list of countries with the highest number of recorded attacks.

And, the greatest concentration of attacks occurs in Recife and what contributes to this large number of attacks may be the construction of the Port of Suape.

Therefore, for its construction, a large area of manguezal was cleared, affecting the marine food chain in the region.

Pollution is launched in estuaries, breeding grounds for the flat-headed species, which reduces the number of fish and can still attract some species such as the tubarão-tigre.

In addition to that, pollution affects visibility, causing the tubarão to confuse its prey.

Another factor is that bathers do not respect the guidelines and finishes for regions where these animals are usually found.

However, there are some tips that can help prevent these attacks, such as:

• Avoid swimming at dusk or in the dark, as these are only the hours when you are most active;
• Avoid swimming alone, try to swim in a group, as attacks are usually more common among people who are alone;
• Do not swim for long periods of time and stay alert on slopes and sandbanks;
• Avoid entering unless you are suffering from any type of bleeding;
• Avoid swimming in areas with nearby shoreline or where there is a concentration of fishermen and possible schools.

Finally, the most important thing is to respect the habitat of these animals, to avoid interfering as much as possible with their presence and actions. It is necessary to preserve the marine environment.

The tubes are being decimated from the planet

• Preservation of tubes: While many people are afraid of tubarões attacks, in truth it is only the tubarões that are in danger, being decimated by the human species.
• Overfishing, Many times for the withdrawal of sub-products, such as swimsuits, which have high commercial value and are only used in oriental cuisine.
• Destruction of coastal regions, often used by some species for reproduction, is also an aggravating factor for this decline in the population of tubarões.

Curiosity of the film or Tubarão

The tubarões exercise certain fascination in many people, mainly because of being large predators in two oceans.

Isso explains the success achieved by the film Tubarão, directed by Steven Spielberg and released on July 7, 1975.

In this way, the film tells the story of a detective, an ichthyologist and a fisherman who goes hunting for a tubarão after attacks on bathers on the beach in a small city.

Logo, the film was winner of the Oscar in the year of best sound film, editing and som, has also been indicated for the Oscar of best film.

Last year, it was a great success for the film, because it also won other awards, like the BAFTA, like best music.

E, or Grammy, as the best soundtrack composed for a film; eo Globo de Ouro, like the best original music.