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1.1.10 The impact of human activity on coastal landscape systems
great white sharks research paper
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Great white shark, white shark, white pointer, or
white death
The Great white shark is part of the Lamnidae family of sharks. They are warm-blooded fish that feed on things such as halibut, seals, sea lions, salmon, and tuna. They are the largest macropredatory fish. They can swim 25 mph with bursts of speed up to 35 mph. They reach maturity around 15 years old and their life span is estimated at 70 years. Sharks do not have bone which makes it difficult for scientists to determine their age.
Species- Carcharodon carcharias
Genus- Carcharodon
The latin name means “jagged-tooth one”. The sharks teeth have jagged edges. The top and bottom jaws move. They have 5 rows of teeth and can have up to 3,000 teeth. They never run out of teeth because once one falls out another one comes in.
Coastal surfaces in all the major oceans
Almost all off shore waters
Water can be as shallow as 3 feet
Temperature is between 54-75 degrees Fahrenheit
Humans are the only threat that these sharks have. There are accidental deaths of sharks by fishermen. Humans will also try to catch sharks and sell their fins for soup. Some people hunt sharks to display their jaws as trophies. Some sharks also get caught in nets that are placed in the water to prevent the sharks from getting too close to where people are swimming.
The oceans have become polluted with toxins, garbage, and metals. Sometimes, sharks will eat the garbage and it will build up in their bodies and harm them. In some areas the Great white shark population has decreased to 70%.
They live in the coastlines of South Africa, Australia, New Zealand, California, Alaska, Hawaii, most of South Aerica, Mediterranean Sea, West Africa to Scandinavia, Japan, eastern coastline of Chi...
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...during global warming where the water levels are decreasing due to heat. The Great white shark has the ability to adjust its body temperature in cold waters only. They are unable to adjust their body temperature to make it colder if the water is too warm. The shark will need to migrate to an area where the water has better temperature. The rise in sea temperature will result in a decrease in oxygen in the water.
With water levels decreasing this will cause the sharks food source to die or migrate to areas as well. This will cause the sharks to migrate they will need to migrate to areas with more food. They will need to travel further and further to find what they need especially since the sharks have a big appetite.
The sharks may need to depend even more on their senses they have. They will have to rely more on their sharp sense of smell to detect food supply
So why do we need sharks? Well, Sharks help keep the ocean healthy and clean for over 450 million years. They also help remove half of the worlds green house gases and produces oxygen more than all of the rainforest's combined! Sharks are just as important as all the trees in the world because they have one thing in common, provide us with oxygen. Without the sharks help we wouldn't be able to get rid as much of the greenhouse gases as we want to, which means global warming would have a lower rate of happening faster. Most importantly they provide us with food. How? They would usually eat the old, sick or slower fish in the population of the ocean to the right size so the prey species don't cause harm to ecosystem by becoming to populated. They are also at the top of the food web. If all the sharks went extinct the entire food web would collapse causing many other species of fish to disappear. So instead of killing the sharks, we could lure them away to somewhere else. As they have a huge impact to the environment.
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
The Great Shark debate – to cull or not to cull, has been at the forefront of the minds of conservationists, as well as the general population for many decades now. The opinions of everyone are divided, according to their personal experiences, and views on what is right and wrong for the environment.
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,
Everyone knows someone who is afraid of sharks. They might even advocate for the killing of sharks when they hurt someone or wonder why they exist on the first place. Every summer, shark attacks are a hot topic. There are news articles every summer about at least one person spotting a shark close to shore, and it seems like every other summer there is a blockbuster film about surviving a shark attack. Everyone knows that sharks are predators, but not everyone knows that sharks are on the decline. This is because of many reasons such fishing, and specific shark killings. Sharks are essential to our marine ecosystems, and the continued culling of them can cause the extinction of the species as well as a devastated ecosystem within our oceans.
In 2015 only 59 shark attacks have occurred around the world compared to the millions of sharks killed by humans every year. Due to these accidental shark attacks people tend to think that sharks, especially Great Whites are evil creatures with malice intentions when attacks do occur; but, on the contrary that is wrong. Sharks are not the only beautiful and unique creatures in the ocean, they also play a vital role in our ecosystem; however, due to human interference they might not be around much longer, through awareness sharks can be protected from endangerment.
Shark slaughter has led to shark populations being rapidly decimated all around the globe. Fishermen report that sharks are also getting smaller because they are not being given enough time to fully mature. Although there are other fish that are targeted more than sharks, they are not exactly affected by the kind of endangerment that sharks are currently experiencin...
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...
Even though humans get injured and occasionally killed by sharks, this is much more uncommon than many people think. In the video, "Great White Predator," it states, "[Sharks] mainly eat one thing: seals," (“National Geographic”). Shark attacks are much less likely to occur than people may think. In fact, Peter Benchley says, "Around the world many, many more people die every year from bee stings, snakebites, falling off ladders, or drowning in bathtubs than from shark attack[s]," (“Great White Sharks”). People have a greater chance of dying while doing everyday chores than from sharks.
Sharks have been on this earth for nearly 450 billion years. To put that into perspective, the first modern humans date back to about 60,000 years ago ("Our Mission: To save Sharks and Mantas”). Since then, both humans and sharks have evolved into the predatory mammals they are today. However, with the quick development of humans, civilization and technology, humans have not been able to fully understand the ways of sharks, although the motives of other human celebrities have been easy to understand and decipher. Because shark attacks have been becoming more televised, and sharks have been known to be more of a “threat” to humans, shark research foundations, such as the Shark Research Institute and the Pelagic Shark Research Foundation, have been created to help give an understanding to these creatures. Over 100 million sharks are being killed each year, and there is a counter on the Bite-Back Shark and Marine Conservation website. As one spends more time on the home page, the number on the counter is constantly increasing, showing how many sharks are slaughtered in the year to come (“Bite-Back – Shark and Marine Conservation”). Even with research to show that sharks are valuable to the ocean and vulnerable, there are people that think otherwise (“The Pelagic Shark ...
Great white sharks are the main predators in the ocean. The only things that are responsible for the deaths of sharks are Age, Health, Humans and other sharks. Humans are responsible for 70% of deaths for great white sharks. Today there are more than 440 known species of sharks. Great whites only have 2-12 babies at one time unlike others who have hundreds. Great whites can live up to 60 years old! Great white sharks are phenomenal animals and but still are vulnerable to extinction. Do your part to kill of the rest of them before they kill you!
Did you know that sharks have been here longer than us humans? Sharks have been swimming the oceans for hundreds to millions of years before the first humans are said to have appeared on land. Unfortunately the shark population has been decreasing due to the shark fishing market. People have often thought sharks as predators to the human race; but truthfully, we should fear living in a world with no sharks. Occasionally, over 100 million sharks are killed by humans. These sharks are killed for their fins most of the time, which are considered to be one of the most expensive seafood delicacies in China. However the ways of attaining these fins have caused controversies all over the world.
They are creatures that have no clue what we are and are afraid of us. Every year, thousands of more people are killed by other people than by sharks; thousand more people are killed in car accidents than by sharks, and more people are killed by lightning strikes than by sharks. Each year humans kill tens of thousands of sharks, yet, there are fewer than 100 shark attacks upon humans. For example, The Great White shark also known as the man-eater, has the greatest reputation for attacking humans. Recent studies of Great Whites show that they mainly feed on sea-mammals. Seen from below the surface a person swimming with a shark looks much like a seal, with arms and legs sticking out. The shark usually surprises its victim, being a person or seal, by one massive bite, and then retreats in order to allow the victim to die before digesting the food. For this reason, many humans survived the attack of a Great White shark if they are saved before being eaten. Not only getting out of the water and be safe, but the result of loss, blood or
One of the governments main reasons for culling the sharks is because they are coming in too close to the shores and becoming a potential threat to swimmers. But why is this happening? This is due to a change in shark feeding habits, but because they are eating more human of course not! Rather because us humans are over fishing and eliminating the fish/food sources of which sharks normally feed on. This is forcing sharks to come in closer to find food. Us as humans have forced sharks to come in closer and are now killing sharks because of our a...
Thesis: Sharks should be conserved because they are an important part of the ocean, attacks are often incidental, and human behavior influences the behavior of sharks.