What To Do About Underwater Noise

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

Humans fish to survive and in doing so they will target specific species leading to overfishing. Sound pollution is causing issues with the wildlife of the ocean in how they communicate and move around. With human interaction comes trash which gets left in the ocean and affects many different species.

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.

The ocean is a vast biome that is constantly changing. There is much to learn about the life within, the article “Omura's whales (Balaenoptera omurai) off northwest Madagascar: ecology, Behavior and conservation needs” showed how our knowledge of the ocean and the life within continues to grow. Balaenoptera omurai, or Omura's whale was only found as a new species in the year 2003. Their are no dependable population size estimates or evaluation of conservation facts because there is not enough data collected on these cetaceans. Scientists are able apply what they learn from some of these organism to humans. In the article “Reproductive Conflict and the Evolution of Menopause in Killer Whales” scientists were able to draw comparisons between Humans and other species.

The reading passage tries to give some reasons to show that the number of sea otters, a small mammal living along the western coast of North America, has significantly declined because of the environmental pollution. On the other hand, the professor on the lecture looks at this concept through a different lens and believes that attacking by the predators like orca are possible for this problem.

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

Finally in the reading, scientists believe that polluition is the main cause of the sea otters decline, in the other hand the lecture affirm that the death of the whales for the human hunts is the main cause of yhe environmental imbalance

While the passage presents that the decline of the otters was reverberated in other sea mammals and thus it would be signal that it was an environmental factor possible caused by pollution, the argument brought but the speaker sea the decrease of sea mammals as whales mainly caused by over

In the listening passage, professor focuses on 1 effect of rapidely declining of sea otters in Alaska coast in North America has more affect. In the reading passage, 2 causes of this event are presented. One of them is pollotion that is made by chemical factories and also attacing predators such as seals, sea lions, and orca. The professor emphasis that attaching prdators has more effection on declining sea lion rather than pollotion. She has some reasons for supporting his oponion. First one is that there are a few chemical factories and also the amount of their pollotion is low therefore, pollotion has weak affect on death of sea otters. Second one is that the predator animals disappear due to their changing diet. Third one is that in some

First, the article states that pollution of ocean by industrial chemicals, oil rings caused to decrease otters' population. Otters cannot survive polluted ocean since their resistance ability cannot afford it. So, they died because of pollution. In contrast, the professor believes that pollution should kill other spicies in the ocean. However, population of other spicies is stable. Furthermore, there is no evidence that ocean is polluted. If ocean had been polluted, there would be huge effect on

Benoit-Bird seek to investigate the acoustic communication of spinner dolphin, Stenella longirostris during the foraging behaviour in cooperative groups. Acoustic communication of marine mammals, especially in foraging behaviour occurred in the underwater were not clear because it is hard to detect due to limited approaches in the last few decades.

The lecture indicated that the rapid decline in sea ottor number is contriputed to predators like Orca. The professor mentions that Orca hunt and eat sea otters. Therefore, no sea otters bodies are washed out in large number. If there is water pollution, sea otters bodies should be wahed out along the coast line in larg number. Thus, this why the professor refute the water pollution hyposize.

The constructions of the turbines alone are creating an effect on these mammals because of the frequency of noise that is emitted into the water. These frequencies disrupt mammal communication, location and location of other species around them.

Another very interesting thing that I have found out in this essay by Regina Blackstock is a case that occurred in 1962 when some Lockheed Aircraft Corporation scientists erected a barrier across a channel with strong microphones. When the dolphins approached it, clicking noises were heard. The dolphins gathered into a group in nearby shallow

Marine biologist play a key role in understanding climate change and identifying sustainable and profitable ways humans can use the sea and its resources. Marine biologist understand marine organisms needs in their habitats, ultimately helping protect species and reduce human threats. As experts in understanding marine habitats, marine biologist often form essential parts of relief teams. They respond to oil spills and chemical leaks, helping other scientist restore normalcy to local habitats. Sometimes, marine biologists influence other spheres, such as economics and law. They might analyze the effect of sonar on whales and seals, for instance, recommending best practices for reducing harm on those sensitive populations. Marine biologists understand how the ocean supports basic needs, and in turn relay that information to lawmakers, who establish protocols regarding human use of ocean waters and marine organisms. Marine biologist help develop ocean technology too, improving waste elimination, energy sourcing and extraction of key sources. A brief review of components of the marine environment, world food resources, climate control, air and water quality, transportation, and the ecosystem balance are important features that are studied by marine biology. So, understanding why marine biology is important is foundational to integrating a balanced approach toward management of the sea and proper stewardship of organisms,