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Introduction to shark finning
Introduction to shark finning
Introduction to shark finning
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It is estimated that one hundred million sharks are killed by humans each year. This is due to hunting sharks for food and trade. As the demand for shark fins, teeth and skin has increased, so has the mortality of these exotic creatures. Popular movies such as “Jaws” and “The Meg” have made sharks feared as monsters by the general public. . An article written by Susannah Bragg McCullough stated, “This is the one adverse, really negative thing that came out of Jaws: ever since this movie came out, shark-killing contests are run all over the world..” Sharks are not the big and ferocious beasts that so many books and movies say that they are.
Shark deaths might decline if the humans who hunted sharks knew more about them. Sharks tend to
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Along the skin covering the shark are sharp tiny thorns, known as denticles. If rubbed the wrong way, they can penetrate skin. Sharks’ skeletal strucutres are made of cartilage. This acts like a bone for the shark. Cartilage is half the weight of human bones, and it is more flexible. Sharks lack a swim bladderthat allows skeletal fish to swim in the water without the work of staying afloat. However, cartilage provides a simple solution since it is much lighter than bone and allows the shark to float in the water. The jaw of the shark is different than humans as well. Most animals’ lower jaw can move without restriction, but the upper jaw is attached securely to the skull. Sharks upper jaw, however, is located under the skull and can detach when attacking prey. The shark thrusts the entire jaw forward into the prey, for a more powerful bite. Sharks other advantage over their prey in their teeth. Shark teeth depend on their diet. Teeth like spikes are used for gripping small prey, long curvet teeth used for slippery fish. Some sharks have serrated teeth. These act like a hunter's knife that can, they cut easily through bone and flesh. Along with that, almost every shark contains 15 rows of jagged teeth. If the shark loses one, it could be replaced in only a day. Most sharks tend to lose a tooth a
Every year, there are about 100 million Sharks killed, ultimately for its commercial success. Their fins are used as the main ingredient for a dish so-called Shark soup. However, many are unaware of the actual importance of Sharks' existence on Earth. They do a number of things to control and balance aquatic life down below, which in return affects how we live on the surface. Sharks have existed in our world for over 400 million years, if they were to suddenly disappear for industrial purposes, much problems will be encountered throughout the world. We must preserve the lives of Sharks, for many reasons most importantly that shark hunting is morally wrong, it may provide economic failure in a given time, and it may serve a critical unbalance of a healthy environmental state.
Throughout the film there are many experts about the ocean and the animals that live in it. Researcher Ritter the misconception of the shark’s species is blown out of proportion by the media, which is why sharks have such an awful reputation. Experts touch up on this subject adding how even one of the biggest movies Jaws is a very large portion from where people get their fears from or it could be from all of the “shark attacks” on the news. Rob discusses how at the rate we are going we can destroy all of the food chains in the marine ecosystem, and this is where most of our oxygen comes from. Throughout the film experts Rob Stewart and Paul Watson are trying to get long lining banned in Costa Rica. Paul makes a really interesting point saying how the biggest problem is that we do not understand what we are and we are just a bunch of “conceited naked apes” that are out of
...arks-world).This means that the bull shark can process freshwater and saltwater by adjusting the amount of sodium and urea it needs.This is important because this feature makes this species very special and separable from other sharks.On the other hand,hammerheads have regular shark anatomy,except for their head and mouth.’’The hammerhead`s mouth is smaller than most other large sharks and can`t open as wide’’(“Hammerhead Shark” 2).This means that everything except for the shark`s head and mouth is regular.
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
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.
presence of a cartilage skeleton, nine gill slits (turning into five gill slits in sharks, where the first four became the jaw), and fins. Sharks belong to the class Chondrichthyes—a more elaborated organism. Jaws derived from the first four gill slits, spiral valve, and productive fins. The fins are amongst the most important advancements made by the sharks.
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.
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.
Most people think that sharks are large, fast-swimmers, and savage predators. This is true of some species and groups should be interested of the appealing aspects of biology found within it: all sharks have an excellent sense of smell; some can detect electrical discharges; some sharks give birth to one of the
Although sharks belong to the class Chondrichtyes, there are many different types. Sharks arose about 350 million years ago and have remained virtually unchanged for the past 70 million years and still comprise a dominant group. It is thought that sharks almost certainly evolved from placoderms, a group of primitive jawed fishes. It took a long series of successful and unsuccessful mutations with fin, jaw positions etc to give us all the different designs of sharks around today. When asked to draw a shark, most people would draw a shape along the lines of the whaler shark family, tigers or a mackeral shark such as a porbeagle. However many people do not realize the sheer diversity in the shape of sharks, or that rays are really sharks. Seldom does such an animal inspire such a variety of emotions reflecting a mixture of fascination, awe and fear. Sharks have occasionally exacted a terrible price from humans who have trespassed on their territory. No better understood than the ocean that they inhabit, these creatures should be regarded in the same way as lions, tigers, and bears: as dangerous, predatory but nonetheless magnificent animals. Different Types of Sharks Living sharks are divided into eight major orders, each easily recognizable by certain external characteristics. Each order contains one or more smaller groups, or families. In all there are 30 families of sharks and they contain the 350 or more different kinds or species of sharks. The eight major orders of sharks include the Squantiformes, Pristiophormes, Squaliformes, Hexanchiformes, Carcharhiniformes, Lamniformes, Orectolobiformes, and the Heterodotiformes.
The sharks attacks has been a worrisome issue in new zealand, This problem lies on the warming of the water because shark attacks has occurred more than usual,Although shark attacks occur there are two side of this argument, for example killing sharks is a good thing to the citizens because there have been harmed or hurt by the sharks , but some people have an opinion like marine biologists think its not fair and disagree how the humans kill 100 million sharks per year and death by sharks is around about is 4 in per year and back my information up I think that the real villain is humans. For every one human killed by a shark, there are approximately 25 and thats just a approximate (http://oceana.org/)
Sharks are unfairly depicted in the three “Shark Week” reading selections: the excerpts from the Old Man and the Sea, Unbroken, and the poem “The Shark”. In the three selections listed, I believe sharks are described as barbaric, relentless, and savage, which isn’t always true to their nature. I have done research that prove that sharks are not fairly depicted in the literature selections. In Hemingway’s “The Old Man and the Sea”, sharks are portrayed as barbaric when the sharks are described as “well built” and “having no other enemy” (lines x to x). However, I have learned that, according to Defenders, sharks may not be as tough as we think, because there numbers are declining to the threats they face in the wild.
The morphology of whale sharks is mostly similar to aquatic fish species, but many specific traits help differentiate them from the rest. Whale sharks are the largest fish in the world and can reach a size of around 20 meters (Martins, C., and C. Knickle). This is often compared to the size of a school bus. The shark has a very large transverse mouth. They have 5 very large gill slits and have a larger first dorsal fin compared to the second one (Whale Shark). They have a distinctive spotted “checkerboard” pattern with stripes (Martins, C., and C. Knickle). It is not exactly known why they have this specific body marking. It is believed that the body markings act as a camouflage. The strange thing about whale sharks is that they have 300 rows of teeth that play no role in feeding (Martins, C., and C. Knickle).
Vicious and blood thirsty, a negative light beamed upon these unique species which only leads me and many others frustrated. Now, don’t get me wrong the physical appearance of sharks does them no justice, with this being the main problem of why many people fear sharks. But like the famous saying, don’t judge a book by its cover, sharks have a lot more to offer
The difficulty in tracing this species evolutionary history stems from the fact that its ancestry dates back 245 million years ago to the Jurassic and Cretaceous Periods. Additional Interest Whale sharks have no real means of defending themselves and warding off attacks from the larger predators such as killer whales or the great white shark. The whale sharks means of defense is its thick skin. The whale shark has the thickest skin of any animal on the planet, and this is its only means of defense. Conclusion Rhincodon typus live in warm temperate seas, primarily found in tropical and subtropical climates.