The prevalence of unprovoked shark bites has been proven to have increased during the thirty year period measured. The number of unprovoked shark bites that lead to death have also showed an increase over the course of thirty years. This could be due to an increase in the human population size as it has increased by 52%. After further analyzing, unprovoked shark bites increased in correlation with the general human population increase. However, this correlation does not determine the overall increase in unprovoked shark bites. An abundance of a certain species may be the cause along with changes in habitat and behavior. The data also supported that sharks tended to bite males. Although not proven, this is probably due to the fact that males
Sharks have also been subjected to medical research, games and competitions, jewellery, souvenirs and cosmetics. We need to take into consideration that sharks play a vital role in the natural world that we live in. it is imperative that we look after these majestic creatures and ensure they remain protected. We need to be aware of the dangers of sharks, swim in protected areas where there are shark nets, and do not swim after dark in the sea (especially not alone) as the sea is the sharks home. Humans should also be wearing wet suits as protection in the ocean. The sea is where they live, they swim freely and they eat – they do not particularly target humans but rather prey on food that is available to them in their habitat.
But occasionally the younger sharks are preyed on by bigger sharks that do not necessarily have to be Bull sharks they can be become prey to any larger species of shark and occasionally a crocodile. However there are parasites like Pandarus sinuatus, and Periscopus dentatus that use the surface of the shark’s skin and use it to survive (Curtis). Though that does not in anyway decrease or increase the economic uses for the bull shark, its effects on the environment, or level of danger to humans. In certain places around the world the amount of bull sharks is decreasing slightly, because sharks can be harvested to make fish food, for their meat, for oils, and their fins for shark fin soup, or in asia their skin can be used to make “good leather” (“Bullshark”; Curtis). Even though their numbers are thought to be decreasing according to the International Shark Attack Files, otherwise known as the ISAF, has reported that there have been at least 70 reported unprovoked attacks on humans of which 17 were fatal, but that is only the known number of the reported attacks by bull sharks there most likely have been many more attacks that went unreported (“Bullshark”; Curtis). They are known for being one of “the most dangerous sharks in the world” because they along side the tiger shark,and great white they are the most common sharks to attack a human
The bull shark may be responsible for many shark attacks in the world but I believe that we have no right to kill them. Sharks are very important to animals food cycles and if the food cycles get messed up it can greatly effect the world. In fact, the bull shark is more vulnerable to human impact due to their ability to live in fresh and salt water but many sharks that are killed are for either shark fin soup or their liver oil. The sharks liver oil has many uses now but it started as a machine lubricant. Another way that sharks die is by recreational fishing. The sharks can get caught up in the fishermen's nets and eventually suffocate and die. As an environmental community, I feel like we need to inform people about shark habits and how to keep sharks safe. The water is their home and we are
Miller, Barbara. "The World Today - New shark attack sparks political frenzy." 2 March. 2009. Web. 15 Apr 2014. Available at: http://www.abc.net.au/cgi-bin/common/printfriendly.pl?http://www.abc.net.au/worldtoday/content/2008/s2504985
Great White Sharks can be found virtually anywhere in the world but they tend to prefer temperate waters off the coasts of Africa, Australia, New Zealand, Japan, the California and the eastern U.S., and Mexico. In its natural environment, this shark has only one enemy, the Orca whale. However, the shark's most threatening predator is humans. Great White Sharks have a monstrous reputation with society due to the sensationalized media that accompanies them. Sharks are killed for numerous reasons through commercial fishing, sport fishing, or for body parts such as fins. An estimated seventy million sharks are killed annually due to trade and many more sharks are also killed accidentally in fishermen's nets (Shark Conservation Through Legislation, 2001, http). Trade for fins, teeth, and jaws also result in thousand...
Rarely do attacks occur that aren’t provoked by intruding upon territory or threatening the animal itself, but even if is unprovoked, it’s due to confusion of humans with another animal that they commonly hunt. Sharks do not deliberately seek to consume humans, as they are not a part of their diet.
Very often there are reports that sharks attack humans for most there are only about less than a hundred a year. But meat isn't the only thing they there are are some sharks that eat a polar bear, a full suit of armor,tires, reindeers,porcupine,senegalese tom-tom drum,fur
Shark teeth often change size and shape based on its position in the shark’s mouth, whether it’s from the upper or lower jaw, and the age, sex, and species of the shark it came from. Shark teeth are produced and shed serially moving forward as though they are on a conveyor belt. With this replacement system, one shark can produce, use, and shed as many as 6,000 teeth each year. If a shark tooth is well preserved it offers the scientist a number of points that can be used to identify the species and the basic taxonomic group of shark it came from. However a great number of shark tooth fossils aren’t well preserved and are often times worn down to the point being smooth and featureless, making them all but useless in the identification process.
...s. According to studies and statistics done, you are more likely to be struck by lightning than killed by a shark. They are often misinterpreted as scary and violent creatures, however this is merely due to media. Shark based films such as Jaw show that these sharks are harmful when they really aren't. Tapes/recordings of sharks slaughtering humans are published so often because of its actual unusualness.
When most people hear the word "shark", the image of a vicious killing machine pops into their head. They picture something out of the movie Jaws, where a massive Great White shark terrorizes an entire beach and eats dozens of people. However, this fictional story is nothing more than Hollywood entertainment. In the real world, the tables are turned. Humans are the ones who kill sharks, and not just by the dozens. It has been estimated that over 100 million sharks are killed every year by humans (http://www.iflscience.com). Some estimates claim that the actual number of sharks killed every year could be as high as 273 million (http://www.iflscience.com). In this research paper, I will inform you of the many ways that sharks are being killed,
Sharks are one of the most endangered species in Australia, and it’s our responsibility to help
The Land Shark Index Page. Anti-Vivisection Index. March 1995. The Land Shark.
Sharks now are a lot more dominant than they were before, seeing something put up a fight with a great white is very rare. Most sharks are carnivores and do not seem to have very much competition for food because of their size and ability to hunt. Not all sharks now are at the top of the food chain but for the most part there are not many other creatures that will put up a good fight with a shark.
Unlike most sharks, bull sharks can survive in fresh water for long periods of time. They have even been found in the Mississippi and Amazon Rivers. They prefer shallow coastal water, which means that they come into contact with humans more often (National Wildlife Federation). With this notion in mind, humans are much more exceptive to becoming the bull sharks’ main dinner course. Therefore, it is imperative to know what is lurking in the muddy waters before planning recreational
The researchers extracted information comparing how seals, sea lions and humans sound in the water. Data published in the Australian shark attack file has found most people are surfing when attacked (phillips). The Mistaken Identity Theory is a good observation on why sharks attack humans. The Taronga Zoo ran a helpful experiment to let people rationalize why sharks may be attacking humans. This seems to be the most logical reason why. When surfers are in their wetsuits, and they are on surfboards they do resemble how a seal appears to the shark. Humans have similar body types as a seal. Although humans often fear sharks, the odds of getting attacked are very low. There are on average only sixty five shark attacks a year. A person is thirty times for likely to be struck by lightening. Sharks injure about thirteen people a year, but about two hundred thousand were hurt in accidents involving ladders, toilets, and chainsaws. The odds of getting attacked by a shark are very low compared to all of the other dangers in the world. Researchers are trying to explain to people through this theory that sharks don`t intentionally attack humans, they are merely just mistaking humans for their normal prey. Sharks also propose a final theory that is the social and defense theory.