The Effects Of Pollution On Killer Whale Populations

There is no debate that one of the most attractive, human friendly and intelligent beauties in nature is the killer whale, more commonly known as the orca. The orca is in the dolphin family, but capable of learning human traits and freely interacting with them without causing any harm. Their curious behavior and acrobatic moves make us enjoy their company through watching and spending time in the waters with them. However, the gradual decline in the population of the orca is a worrying trend that sparks another kind of debate. Our interactions with killer whales is endangering their survival in the ecosystem, which should not be the case (BioExpedition 1). Our interaction with the

Killer whales captivity is a major issue because they could become sick or injured there. According to Blackfish, orca whales in captivity tend to become hyper aggressive towards new whales. This results in whale on whale incidents where the whales can get severely injured, or can even die. Some examples of these incidents, as The Dodo has said, are a male whale named Nakai had his chin torn off in a fight. Additionally, a female whale named Kandu broke her own jaw and cut her artery in a fight, eventually bleeding to death. Her calf was circling around her during the event. In addition, the Huffington Post states, “animals may suffer from captivity related stresses that lower their resistance and make them more susceptible to disease, making lifespans in captivity significantly lower than in the wild.” To add on, The Dodo states,”One big issue was the terrible state of the orcas' teeth. Captive orcas are already at risk for dental trauma - bored and stressed, they often begin gnawing on the edges of their tanks.” They also state that these occurrences in the wild are very rare. Also, whales like Tilikum got a lung infection due to bacterial pneumonia, which is the most common reason why captive whales and dolphins die (according to Wikipedia). Tilikum had also died due to the disease. This indicates that whale captivity leads to many incidents and diseases that the whales would not have faced in the wild. All these problems are caused due to them being captive.

The chemicals from Industries can quite harmful depending on what 's flowing into the water. Releasing toxic liquids directly into the water affects marine life as is, but it can also change the temperature of the water, also known as thermal pollution causing animals and plants that can 't handle that temperature to eventually die. Land run off usually happens when rain or perhaps a flood carry a harmful pollutants, which include fertilizers, petroleum, and waste from animals. One of the major sources of ocean pollution would be oil spills that can come from Ships. However, oil is not only extremely toxic, but it is very difficult to clean up. Unfortunately when there is a spill people may try to clean it up as best as they can, but a good amount will stay. Ocean mining can be extremely harmful to the ocean. They use ocean mining to drill for silver, gold, copper, cobalt and zinc, however in doing so they create sulfide deposits deep down in the ocean causing long term effects to the area. Finally, littering is another huge source of ocean pollution. Such things can include debris, especially plastic, which never goes away.

the whales is also bad. When they take the Whales from the ocean, many whales die in the

Cetaceans use sound extensively in both communication, hunting, and navigation. However as humanity continues to make use of the ocean we are constantly filling it with equipment that produces high amounts of sound. These devices are starting to have an impact on cetaceans worldwide, from mass strandings often linked to military exercises to area denials caused by busy commercial shipping lanes and seismic surveys. If consideration is not taken towards this problem now it could develop into something that could have degrading effects on cetacean populations in the future.

Killer Whales that live in SeaWorld are unhealthy to the ones compared in the wild. In the documentary Blackfish they went to SeaWorld to ask about the lifespan of a whale. They workers at SeaWorld responded saying they live from 20-30 years and that in SeaWorld they live more (Cowperthwaite). Killer whales life span is like a humans were males will live from 60 to 70 years and females live from 80 to 100. Killer whales that are kept in captivity are cutting their

This causes aggression and mental, emotional, and physical stress that leads to a poor immune system, making them prone to disease. Even though captive whales are kept in an environment without pollution and predators, they die young. For infant whales in captivity, the death rate is much higher, which isn’t fair. Aggression is also a matter of grave concern. Some examples of actions whales in captivity have expressed towards their trainer are, butting, biting, grabbing, ducking, and even holding trainers at the bottom of the pool and preventing their escape

Some killer whales also develop infections and the whales are not healthy because they are not fed a healthy diet like they would eat in the ocean.

The lecture and the reading both discuss the decline of Sea Otters. While the reading states that the pollution is the

Holding killer whales in captivity is a harmful problem to the mammal that requires action from both the government and the public.

After arriving at the aquarium, the whales are put into tanks that are a maximum of 40 feet deep and 80 feet wide, much smaller than the 100 mile area an Orca would swim daily in the wild. To put things into perspective, the human equivalent to these tanks would be about; 10 meters long, 6 meters wide, and 2 meters deep (WDC), which is about the size of 2 school buses parked side by side. Among other things, the tanks are harmful to the whales for three main reasons. The first reason is the tanks are much too shallow for the whales to dive down into the shade of the ocean to escape the suns hot rays. This being said, the whales are forced to stay on the surface much more than they would in the wild, resulting in extreme sun burn.

One of the many kinds of pollution that exist is water pollution. Many threats and dangers to ocean species from pollution are found in the ocean. Plastic may be the largest threat to water pollution problems. Other problems may also result from oil spills, sewage spills, and trash. Plastic products pose the biggest water pollution problem. Items such as bottles and plastic bags that find their way into the ocean are often mistaken for food by hungry sea turtles, dolphins, whales and sea birds; killing the ocean animals by suffocation. Those plastics also contain toxic chemicals which can be dangerous posing a threat to all marine wildlife and also to humans.

Today, the global theme park has 41 killer whales live, in which 26 marine parks in Orlando. Over the years, more than 130 killer whales were captured after the death. Until the 1960s, it has never been thought about the killer whale into the aquarium, not to mention, and who perform together. The public know very little about this animal, in addition to their name sounds very dangerous. Killer whales, also known as orcas, or killer whale, is the largest member of the dolphin family size. The fishermen used a rifle to shoot killer whales near the fish.

By calculating the amount of food lost because of dropping sea levels, and combing this with estimates of the food needed to keep a whale alive, Lindberg and Pysenson calculated the impact of global cooling on gray whale populations and the populations that would have had to exist in order for the whales to survive. They then concluded that populations would have had to have alternative feeding modes sufficient to support a population of around 70,000 during warm periods so that population drops during glacial periods wouldn't be below 5,000 to 10,000 whales. Much lower numbers would have produced a genetic bottleneck obvious in the DNA of the whales and Lindberg stated "such a signature has not been

A killer whale is a toothed whale belonging to the ocean’s dolphin family. The killer whale can also be referred to as the orca whale or an orca. The killer whale belongs with the ocean 's family of dolphins, it 's the largest member of the dolphin family. The whale weighs approximately up to eight thousand eight hundred pounds and it can grow up to twenty eight feet in length. In this essay I will be presenting the many factors that are included in a killer whale such as, stereotypes, intelligence, foraging and feeding, living in groups, different types, appearance, and their life cycle.