National Geographic states that “Over 375 shark species have been identified, but only about a dozen are considered particularly dangerous. Three species are responsible for most human attacks: great white (Carcharodon carcharias), tiger (Galeocerdo Cuvier), and bull (Carcharhinus leucas) sharks”. Almost every recorded attack happened because of the shark’s curiosity, misidentification and plain human stupidity. During a shark breeding season, the
There is a huge problem with finning for shark steaks or shark fin soup. Because of this, some shark species have dropped by 90 to 50 percent (Choi). In the 80s commercial fisheries made the population of sharks go down even further. Approximately 20 to 100 million sharks are killed each year due to fishing (lovgren). This has caused the total shark population to drop 30 to 50 percent
Annual tolls because of sharks are much less than deaths resulted in meetings with crocodiles, tigers or elephants. Last two representatives of the huge terrestrial fauna kill around 100 people each year, while sharks have around five victims on their account. Meanwhile, tigers and elephants already had law protection, when the documentary was created, while sharks were treated as a source of valuable product (their fins) and a monster that should be killed before it would get an opportunity to attack. Numbers, mentioned by the film, created the impression the situation is totally unfair. As if officials today will forget about their efforts against the ivory black-market
Argumentative Essay Deanna Wood Mrs. Tubergan and Mrs. Rhodes English 6 12 March 2018 Each year sea turtles, such as the Loggerhead Sea Turtles, get closer and closer to extinction because of threats they face every single day. They die from fishing nets, marine debris and oil spills. Loggerhead Turtles will be extinct if we don’t stop causing the harmful threats we are doing. First, oil spills is a big problem in killing our sea turtles. According to Sea Turtles Conservancy there has been a study in 1994 on baby sea turtles, that 63% of all the baby sea turtles had tar inside of their bodies.
Negative Effects of Ocean Pollution “Each day, oil used to lubricate engines and to power the vessel leaks into the ocean” (Wroble 44). When the residue enters the ocean, it begins to affect the environment and animals. This is just one of the many problems from ocean pollution. “According to Worldwatch research associate Peter Weber, 80 to 90 percent of all of the materials dumped at sea are dredgings...dredgings are rich in toxic chemicals...from nonpoint sources” (Wroble 49). One particular chemical that affects the oceans are Polychlorinated Biphenyls, or PCBs.
Zebra mussels are a big problem because they cost the economy lots of money, eat up almost all of the plankton, and they hurt aquatic life. My first reason we should rid of the zebra mussel is because they cost the economy lots of money. According to the article Zebra Mussels by MNDNR, “Zebra mussels can be a costly problem for cities and power plants when they clog water intakes.” They cost America 5 billion dollars a year just to replace things this small mussel has ruined. My second reason that we need to remove the zebra mussels
As they usually hunt old, weak or sick prey, they help to keep the prey population in good condition, healthy and strong, enabling these more naturally fit animals to reproduce and pass on their genes. The effects of removing sharks from ocean ecosystems, although complex and rather unpredictable, are very likely to be ecologically and economically damaging. Here are some reason why killing sharks is very bad: 1)Sharks are being fished at a rate faster than they can recover. Due to overexploitation and lack of proper management, many shark species are under considerable risk of unrecoverable decline with some species having declined to near extinction in recent years. According to reports, sharks are being killed at an alarming rate of up to 273 million worldwide per year.
This is concerning for a couple of reasons. First, it has a tremendous negative impact on the marine ecosystem. Species are being taken away from ecosystems, in some cases even being depleted to near levels of extinction. For example, the same UN report reveals that, worldwide, nearly 90% of predatory fish stocks are gone . That means that most of the world is losing
Research displays that the rate at which sharks are killed is close to 100 million every year! There are so many causes which assist with Sharks being on the verge of extinction, one of which includes human activities. First and Foremost , Shark finning refers to the removal and retention of shark fins and the discard at sea of the carcass. This means that for commercial purposes poachers cut off the shark 's fin, (while its still living) and tosses it back into the ocean. This is a detrimental problem because unable to swim, the sharks sink to the bottom of the ocean where the remains are eaten by other fish.