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Ocean conservation and marine biology
The effects of marine pollution
The effects of marine pollution
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Recommended: Ocean conservation and marine biology
The most recent law passed in Western Australia promotes and consents the murder of sharks in what is considered the boundary of "kill zones". “Localised shark mitigation strategy” (Reed 2015) was created because of 7 fatal shark attacks in Western Australia since 2010. The government created baited drum lines to catch sharks off beaches last summer with the intent of killing any shark longer than 3 meters and releasing any other, dead or alive. Fifty- one tiger sharks had been killed by the end of the first season. This law is morally corrupt because it eliminates sharks as a key food chain element in the ocean causing detrimental consequences for their removal, it disregards the pre existing mortality rates for various types of sharks endangering them, and also holds no remorse for murder while disregarding conservation of oceanic wildlife and the kings of the open sea, sharks. …show more content…
These apex predators remove weaker members of other species in order to maintain overall oceanic ecosystem health. Without sharks our seas would become overpopulated and the balance of the food chain would collapse out of balance. All sharks prey on the sick and the weak members of the population. Some sharks scavenge the sea floor to feed on dead carcass to prevent the spread of disease and outbreaks that could be devastating. It is said that “Sharks are vulnerable to exploitation and recovery can take decades” (Reed 2015). The reality proves heartbreaking as sharks are predicted to go extinct within the next few years at this rate. Not only are these creatures an important asset to our ecosystems, but they are also beautiful creations that shared time on this earth with dinosaurs and should not end because of us. Humans are becoming the real killers, not the
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.
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.
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
As they are at the top of the food chain, sharks play a very important role in the oceans in a way that an average fish does not. Sharks keep populations of other fish healthy and in proper proportion for their ecosystem. By preying on the old, sick or slower fish in a population, they prevent the spread of disease and prevent outbreaks that could be devastating. According to Ransom Myers from Shark savers, “sharks may be gone within the next decades if we continue to kill them, resulting in the loss of important foods that we depend on for survival, causing a marine ecosystem imbalance.” At the same time, I accept that shark nets could be useful, especially in shark infested areas that have been renowned as spots where many attacks have occurred, but I still believe, as you would, that scientists should spend more resources on working out why it is becoming more common for sharks to be entering shallower waters, looking for food – namely seals, who just happen to look like
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...
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
Watching a movie where hundreds of swimmers on a beach are in a complete panic because of shark attacks makes a person scared to swim in an ocean, lake, or even a pond. Not only movies, but also documentaries of shark attacks stress how dangerous sharks are. In reality, are sharks really that dangerous or is it how they are portrayed? Stephen R. Palumbi who is a Professor of Biology at Stanford University and also the Director at the Hopkins Marine Station at Stanford wrote an article about other animals living in the ocean that are more dangerous to humans than sharks. In fact, he has written books about creatures in the water such as The Death and Life of Monterey Bay, and The Evolution Explosion. In addition, his son Anthony R. Palumbi is a novelist and a science writer that has written for Atlantic and other publications (Princeton University Press 1). Together they co- authored an article titled “Forget Shark Week: They aren’t the only fish in the sea” that was published the Los Angeles Times.
The largest issue associated with the Queensland shark control program (QSCP) in Queensland is the considerable damage it causes to marine wildlife along the coastline. It is indiscriminate when killing marine animals that swim in close proximity to the shark nets. Between 2001 – 2003, 6250 sharks were caught on drum lines alone, 97% of which were considered as a conservation risk according to the International Union for Conservation of Nature.
Sharks appear to be very vicious creatures that will eat or kill anything in its path. People think that all sharks are harmful and deadly to humans. However, research shows that this statement is not true. Sharks can be trained and tamed. They are just like big, aquatic dogs. Only about 2 dozen types of sharks are potentially harmful to humans. Shark attacks are also much more uncommon than one may think. Despite their fearsome appearances, sharks are not as vicious as they look.
As I mentioned earlier, Sharks maintain the balance of the entire marine ecosystem! If the ocean’s ecosystem were to collapse, it would greatly affect life even on the surface. Sharks tend to eat fish who are much slower and sickly therefore they keep the population of fish in a healthier state. We depend on the oceans for the oxygen that we breathe because of certain species in the ocean that produce oxygen such as Phytoplankton, if Sharks were to be extinct, we would lose a great amount of the oxygen on Earth because the balance of living Phytoplankton and other species would not be enough. Furthermore, Sharks have been maintaining the balance of our ecosystem for 400 million years, if these sharks were to be gone, who would balance this heavy task? A number of scientific studies demonstrate that depletion of Sharks results in the loss of important fish and shellfish species from the food chain, including key fisheries such as tuna, which help the health o...
Demand, revenue, cost, and profit are the driving forces behind any economy. This notion is taught to most students in grade school and will carry on through the rest of their lives helping them make the most educated decisions they can. Logically, the greater the demand for something, the greater the profit will be. Whaling used to be a sizable part of the economy, due to the innumerable uses of a whale’s by-products, and consequently, there was a substantial profit margin. Presently, the largest demand for whaling is by Japan, Norway, and Iceland all of whom partake in whaling for either commercial or “research” purposes. However, the demand and revenue from whaling do not outweigh the costs that have tolled on the species. This practice is largely scrutinized by conservationists who believe that commercial whaling is going to bring some species of whales to extinction. The current demand for whaling is incredibly low; however, it is still necessary to continue the ban on commercial whaling.
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...
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.
We are going to need a bigger boat! There is no doubt about it that sharks and humans are not best friends like dogs and humans. Sharks can attack humans and kill or seriously hurt the humans, while at the same time, humans can catch the sharks and kill them or eat them. Sharks around the world cause many problems for people like fishers, divers, surfers, and many other people. Many companies around the world have been working on producing defensive mechanisms that keep the sharks away from people, this in turn will remove many of the problems that the sharks cause.