Origin
The tiger shark (Galeocerdo cuvier) is part of the family Carcharhinidae, order Carcharhiniformes. It can be found in temperate, tropical and subtropical waters. It inhabits the waters of seas, bays, or estuaries in search of food.
It swims in the Gulf of Mexico, South America, Africa, China, Hong Kong, India, Australia and Indonesia.
It is more commonly known as the sea tiger because there is another species of shark called the sand shark. If our difference is obvious in English the two names are almost identical (shark tiger – sand Sark tiger).
The tiger shark was first described by Peron and Lessueur in 1822. They gave it the scientific name Squalus cuvier, but this was later changed to Galeocerdo tigrinus. Today the scientific name is Galeocerdo cuvier. It is the largest member of the family to which it belongs.
The number of tiger sharks population is decreasing due to fishing by humans. In some areas the shark population is in danger of extinction due to overfishing. In 2010 Greenpeace International added the tiger shark to the list of banned foods that should no longer be marketed.
Feeding The Tiger Shark
The tiger shark travels long distances in search of food both in deeper waters and in shallower waters such as those in coastal waters. It is a large, active fish that needs to consume a large amount of food. He's also greedy. It is considered a macropredator.
The tiger shark's food consists of fish, other species of sharks, calamari, seals, sea snakes, Dolphins, reptiles, marine mammals, invertebrate animals, cephalopods, turtles, crustaceans, etc.
Like other sharks it is a sanitary fish of the seas and oceans. It consumes Carrion, household debris or sick animals that it easily catches.
It has the largest menu of all shark species because it consumes the greatest diversity of food. All sorts of objects were found in his stomach and he has a reputation as a "garbage Eater".
Appearance Tiger Shark
The tiger shark is 5 metres long and weighs almost one tonne (1000kg). The female is larger than the male. The largest female caught was in Australia. It was 5.5 m and weighed 1524kg. The weight turned out to be so high because the female was pregnant. It is said that larger specimens have been seen, dr currently if they were not proven, they could not be confirmed.
The body is long and fusiform, the fish moves like a torpedo through the water propelled by powerful muscles.
It is brownish or brownish-gray in color on the back, on the dorsal side, and on the belly it is whitish. On the sides and back it shows dark stripes, like Tiger's.
These tiger-like stripes can be seen best in young specimens. As they get older these stripes can be seen less and less, and in some sharks they can disappear.
The head is large compared to the body. The muzzle ends with the mouth provided with triangular sharp teeth. The cod swimmer is perfectly adapted to propel the shark's large body through the water. The other swimmers in assist with movement and direction. The pectoral fins are larger in size while the ventral fins are smaller in size.
The tiger shark can reach the speed of 32km/h. the largest predator of the shark, perhaps the only one, is man.
Behavior Of The Tiger Shark
The tiger shark is considered among the most dangerous sharks. Probably because of the size. Many inhabitants of the Sea coast where the tiger shark swims are afraid of this sea fish.
He is classified as a vice-champion in attacks on humans because he walks through shallow waters where man walks. It meets people much more often than other shark species. If he didn't frequent shallow waters and meet man so often he wouldn't be considered so dangerous.
They travel the longest distances in the summer months when the water is warm. In the cold months it stays mostly in the equatorial zone. He prefers to hunt at night. It's a solitary fish. Until recently it was thought that the tiger shark descends to depths of 900 meters, but recent studies have confirmed that it does not exceed 350 meters deep.
In Hawaii it has been observed at depths of only 3 meters. It is usually observed in that area at depths of 6-12 meters.
Sharks generally move slowly through the water, and their habitat helps them camouflage themselves and make them harder to identify by prey. They are best camouflaged if they have a dark color behind. Once they have approached the prey they attack in the form of ambush and surprise their prey. It's amazing to see how a fish of almost a ton can be propelled into the water at such speed. Not to mention seeing him coming at you like a torpedo ..
Native Hawaiians believe the tiger shark is sacred. They say the fish's eyes have special powers.
Breeding The Tiger Shark
Tiger shark reproduction is different from other shark species. It has an ovoviparous reproduction. Sexual maturity is reached after males exceed 2.3 – 3 meters and females 2.6-3.5 meters in length.
Mating takes place once every three years. The male uses his teeth to hold the female during copulation. In the northern hemisphere mating takes place in March – May. Childbirth takes place the following year in April – June. The gestation period exceeds 12 months. Puppies grow in the mother's body until they are 16 months old when they are fully developed.
In the southern hemisphere the mating season takes place in November – January.
After the mating period, the female retains the eggs in the oviduct and the embryos develop inside it. It can also secrete uterine milk as a feeding supplement for embryos. Can give birth to 20-80 Cubs.
Life expectancy is not known exactly, but it is assumed that the tiger shark lives 30-40 years.
The Tiger Shark (Galeocerdo cuvier) is one of the most fascinating creatures of the deep ocean. With an evolutionary history of approximately 60 million years, this magnificent predator is named after its tiger-like stripes. However, its appeal to humans is not only due to its terrifying appearance, but also its behavior and unique characteristics.
The Tiger Shark is widespread in all tropical and subtropical oceans around the world and is often found near continental shelves. This powerful predator lives in various environments, from coral reefs to estuaries and offshore waters, and its migration can cover long distances.
One impressive characteristic of the Tiger Shark is its size. These predators can reach a length of up to 5.5 meters and weigh up to 1500 kilograms, making them some of the largest sharks in the world. Their elongated and muscular bodies are covered in scales that are larger and rougher than those of other shark species. These scales, combined with distinctive stripes, give the Tiger Shark a fearsome appearance.
Perhaps the most well-known aspect of the Tiger Shark is its diet. These predators are renowned for their taste for meat. Their varied diet includes invertebrates, bony fish, sea turtles, birds, and even other marine mammals such as dolphins or small whales. Their large number of sharp and powerful teeth allow them to tear apart the prey, regardless of its size.
The Tiger Shark is an aggressive and intelligent hunter. It can quietly approach its prey, using its long and muscular body to accelerate rapidly and strike with precision. It is also equipped with a highly developed sense of smell, which allows it to detect the presence of a food source from a distance.
In addition to its hunting abilities, the Tiger Shark is adapted to survive in the marine environment. Its hydrodynamic body reduces resistance while swimming, and its powerful gills allow it to efficiently extract oxygen from the water. It also has a specialized skin called dermal denticles, which helps with camouflage and protection.
However, their status as apex predators exposes them to pressures and threats. Although the Tiger Shark currently maintains a stable population, increasing human activities could lead to a decrease in their numbers in the future. Overfishing and unregulated fishing are the main threats to their survival.
It is essential to understand the importance of these predators in the balance of the marine ecosystem. Tiger Sharks, like other sharks, play a crucial role in maintaining the health and biodiversity of the oceans. By controlling the population of other species and maintaining balance in the food chain, they contribute to the overall health of the marine ecosystem.
In conclusion, the Tiger Shark is an impressive and important predator in the marine ecosystem. Its large size, intelligent hunting behavior, and varied diet give it a top position in the ocean food chain. However, we must be aware of the threats it faces and take measures to protect and conserve this wonderful species.
