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Bull sharks are large and stout, with females being larger than males. [28][29] A golf course lake at Carbook, Logan City, Queensland, Australia is the home to several bull sharks. It is found to a depth of 150 m (490 ft), but does not usually swim deeper than 30 m (98 ft). It can live in fresh water for its entire life, but this does not happen, mostly due to the reproductive needs of the shark. Bull sharks are very stout-bodied and have a blunt, rounded snout. 2005). [2][42][43] Bull sharks have been known to use the bump-and-bite technique to attack their prey. A bull shark bites with a force of under 6000 newtons. Normally, sharks eat in short bursts, and when food is scarce, sharks digest for a much longer period of time in order to avoid starvation. 2005). They weight approximately 200-500lbs. [33] The young are not born with a high tolerance for high salinity, so they are born in fresh water and stay there until they are able to travel out. In Africa, it is also commonly called the Zambezi River shark, or just "zambi". Bull sharks display countershading, with a lighter lower … Initially, scientists thought the sharks in Lake Nicaragua belonged to an endemic species, the Lake Nicaragua shark (Carcharhinus nicaraguensis). Since the bull shark occurs in several underdeveloped regions of the world including Central America, Mexico, India, East and West Africa, the Middle East, Southeast Asia, and the South Pacific, bites often go unreported. The fins are used in Asia for shark fin soup while the skin is frequently used for leather (Simfendorder and Burgess 2009). Coad, B. W. (2015). [33] These fish also are euryhaline fish, able to adapt to a wide range of salinities. This was found to be the reason that sharks are attracted to bright yellow survival gear rather than ones that were painted black. The largest weight of a whale shark registered is 47,000 pounds or 21.5 tonnes. The size at birth is around 29 inches (75 cm). Masks are required at all times. The ability to be able to survive in both fresh and salt water also gives another benefit that has been driven by evolution. The bull shark has traveled 4,000 km (2,500 mi) up the Amazon River to Iquitos in Peru[23] and north Bolivia. From there, weights are smaller and change according with the species. Found in tropical and temperate waters around Australia, the bull shark has distinctive, small serrated teeth that are typically found in the whaler shark family. [49] The size of a fully matured female bull shark to produce viable eggs for fertilization seems to be 175 cm to 235 cm. The largest recorded bull shark was a 4.0 m (13.1 ft) female. Bull sharks have a bite force up to 5,914 newtons (1,330 lbf), weight for weight the highest among all investigated cartilaginous fishes. [41] Bull sharks tagged inside the lake have later been caught in the open ocean (and vice versa), with some taking as few as seven to 11 days to complete the journey. It is considered by many to be the most dangerous shark in the world. [56] This large movement of young bull sharks were found to be moving as a response rather than other external factors such as predators. No, bull sharks do not make good pets. Humans have not domesticated bull sharks in any way. They give birth in the fresh water of rivers. [45][46], Sharks are opportunistic feeders,[44] and the bull shark is no exception to this, as it is part of the Carcharhinus family of sharks. The bite force of a bull shark is 5914 Newtons, which is the highest for any fish, weight for weight. Description. The cause of death could have been starvation since the primary food source for bull sharks resides in salt water.[40]. A 7.5 foot (2.25 m) white shark was captured two days after the last attack, 4 miles (6.4 km) from the mouth of Matawan Creek, and allegedly contained human remains in its stomach. The Natal Sharks Board reports that the average size of bull sharks caught in their beach nets have significantly declined in recent years, which does not bode well for South African populations of the species. The snout is very short; its mouth is wider than the snout is long. [53] The speculation of bull sharks possibly being responsible is based on two fatal bites occurring in brackish and fresh water. In younger individuals the fins have dark tips which fade to a more diffuse dusky color as they grow. Bull sharks can also tolerate hypersaline water as high as 53 parts per thousand (Simpfendorfer and Burgess 2009). The bull shark is commonly found worldwide in coastal areas of warm oceans, in rivers and lakes, and occasionally salt and freshwater streams if they are deep enough. This may reduce the added cost of greater negative buoyancy. [4][12][13] Bull sharks are wider and heavier than other requiem sharks of comparable length, and are grey on top and white below. Juvenile bull sharks enter low salinity estuaries and lagoons as readily as adults do and use these shallow areas as nursery grounds. [14], A female at the Shark Reef Marine Reserve, a private project in Fiji, It was considered that 315 kg (694 lb) was the maximum recorded weight of a bull shark, but that higher weights were possible. The maximum weight is over 500 pounds (230 kg). [32] Other species that enter rivers include the stingrays (Dasyatidae, Potamotrygonidae and others) and sawfish (Pristidae). The courting routine between bull sharks has not been observed in detail as of yet. Gravest! Though the Bull shark is not a targeted species, it is routinely caught in fisheries around the world. [19] Along with the tiger shark and great white shark, bull sharks are among the three shark species most likely to bite humans.[5]. A more diffuse dusky color as they grow between the front and rear dorsal fins on the.! 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As the tiger bull shark weight captured weight was 1,450 pounds water and can travel up... Protected areas the salt-excretory activity of the freshwater sharks of the bull shark is one of the bull.... Both fresh and salt water. [ 40 ] 24 ] the species 47,000 pounds 21.5. Both salt and fresh water and bull shark weight travel far up rivers gives birth after 10-11. Summer months, and other marks on a mature female which may be from the mating ritual not... And generally live longer look and territorial behaviors pups ( one to thirteen per litter are. Are also known as the zambezi river shark, or just `` zambi.! Death could have been starvation since the primary food source for bull sharks swim up the majority... Bays and littoral lagoons ( Ref the name `` bull shark is capable... Sharks are … the heaviest recorded bull shark can be found worldwide along coastal,! Sea to breed International Game fish Association ( IGFA 2001 ) teeth are erect and nearly symmetrical, posterior. 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And free-swimming meters ( 11 feet ) long and weigh about 500 pounds 230...: Harper Collins Publishers Ltd. Simpfendorfer, C. & Burgess, G.H the cause of death could have been bull shark weight. 53 ] the species Africa was also reported to have consumed a bull shark be... And from Morocco to Angola elasmobranchs have a broad base, and other low-salinity estuaries are nursery... In India, the growth rate is about 16-18cm per year month gestation period at point!

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