Ocean Dead Zone Essay

These compounds are taken up by plants as nutrients from the soil and converted into plant proteins (amino acids). Plant proteins become animal proteins when eaten and metabolized by herbivorous animals, and when carnivorous animals eat the herbivorous. These proteins return to the soil through animal excrement and the decomposition of dead animals and plants, and are converted into carbon dioxide, water, and ammonia (gaseous compound of nitrogen and hydrogen) by a set of bacteria in the soil. A portion of this ammonia is converted into soil nitrogen (fixed nitrogen) by another set of bacteria and the balance is released into the atmosphere as free nitrogen (N2).” (nitrogen cycle, n.d.) Human impact on this cycle is very significant. Farmers plant crops such as; peas, beans, and alfalfa. These crops pull nitrogen from the air which helps raise the rate of nitrogen fixation on the land. Farmers also plant corn and wheat which are sprayed with nitrogen derived from industrial fixation. All of these crops help humans to survive. Having these crops benefiting humans we are more than doubling the amount of nitrogen that’s moved from the atmosphere to the land. When sulfur is released by burning fossil fuels, which humans do, this is killing and polluting our lakes and ponds and killing our forests. With these and other chemicals being put into our land, these are reaching our oceans and big areas of water and this will

The film The Sea Inside shares the heart warming real life story of a man named Ramon Sampedro. At the young age of twenty-six he suffered an accident while diving into shallow waters of the ocean that left him a quadriplegic. Now at the age of fifty-four, Ramon must depend on his family to survive. His older brother Jose, Jose’s wife, Manuela and their son Javi do their best to take care of Ramon and make him feel loved. Although Ramon is extremely grateful to his family and friends for their help all these years, he has come to see his life as aggravating and unsatisfying. He wishes to die with the little dignity he has left in his life. However, Ramon’s family is dead set against the thought of assisted suicide and the

Furthermore, factory farms pollute drinking water sources. Manure and fertilizers are rich in nitrates and phosphates, which are very unhealthy for living things. They pollute groundwater sources by seeping in through lagoons of waste sewage that factory farms create. Lagoons of animal feces and spent fertilizers are a very cheap way of dealing with waste (NRDC). The chemicals travel through the soil to groundwater that the local communities depend on. Ingesting nitrate tainted water will lower the amount of oxygen a person can intake. This can lead to death for infants. Some of the pollutants can reach open waters if they are carried by rain or irrigation water, called runoff. Runoff pollutes ponds, lakes, oceans, and other open bodies of water. Polluted waters with high levels of nitrates kill fish, aquatic plants, and other aquatic organisms because they experience the same problems with oxygen intake. High levels of phosphorus in our waters cause algae blooms in open bodies of water. Algae blooms disrupt the ecosystem in the water and kill the organisms living in the water. They use up all the oxygen in

The oceans need to be protected because it is where life began and if not taken care of, life as we know it will end. The well-being of the ocean is constantly being threatened and needs to stop. When dangerous substances go into the ocean, ecosystems suffer and become endangered along with the lives of people and marine life. The importance of protecting and preserving the quality and biodiversity of the world 's coasts must be recognized because they are truly irreplaceable. If humans are not educated , and become careless about what is thrown on the ground or sprayed on lawns, disastrous effects follow when it comes to the condition of the ocean’s ecosystems, which can endanger life itself, leading to a problem only we can correct. There is historical evidence of ocean pollution, although the problem still shadows us today.

Oceans cover approximately 75% of Earth 's surface and are vital to this planet and the people who inhabit it. Oceans provide food, natural resources, and recreation for nearly everyone in this world. Unfortunately Oceans have been receiving mass amount of pollutants including oil spills, toxic waste dumping, and industrial dumping. These pollutants will have negative impacts on the wildlife in the ocean, as we are seeing already with the Coral Reefs, and soon enough it will begin to affect our lives as well.

It is understood that there is not just one problem causing the dead zone in the bay. Two main contributors are the focus. Details are presented on the problems brought to the bay by agriculture, and development. The language is easy to understand and the scientific and environmental message is conveyed in a way that can be followed.

If you have ever lived in proximity to coastal areas you may have seen coastline erosion first hand. The beaches you frequent during the summer may seem to be getting smaller and smaller every year. Why does your favorite beach seem to be disappearing? Coastal erosion is to blame. The waves, wind, tides and currents all play a part in the mechanism that is coastal erosion. When water and wind batter the shoreline sediments are carried out to sea and deposited on the sea floor or at other points along the coastline. This is called an erosional coastline. This erosion may be very apparent or seem to have happened overnight when it happens due to a large storm or extremely high tide.

It is called the Graveyard of the Atlantic because of the treacherous waters in the Atlantic

I examine how rising or falling tide can affect the water level of Corte Madera Salt Marsh in this report. The data is from Wednesday (June 19th) and Thursday (June 20th). My hypothesis is that tide and water level have positive relationship. From the result, I learn that the water level and tide have positive relationship. However, when tide changes its direction, the water level is likely to stay or little change.

There are many economical problems due to the dead zone ranging from fisheries going out of business to illnesses. The economical problems have paid their toll on nearby fishers whom in total have paid over 10 billion US dollars to repair the problem. Sadly though, no matter how much they pay, the problem is still on going. The gulf’s massive fishing industry is trying to focus its efforts on the parts that have been affected in an attempt to save their sea. According to many sources, EPA views this problem as unimportant and hasn’t helped yet. The reason that it is so hard to come to an agreement is because there is no solution that pleases everyone. Right now the farmers up north of the gulf are having an easy time because of easy and cheap waste disposal while downstream the fishers are

Eutrophication, a term that derives from two greek words, eu, meaning “good,” and trophic, meaning nutrition or nourishment, is the enrichment of water bodies with nutrients like nitrogen and phosphorous that stimulate plant growth. Nitrogen is often found in rocks, soils, organisms, and the atmosphere; phosphorous resides mostly in rocks/soils and organisms. Having nitrogen and phosphorus in the ecosystem isn 't necessarily a bad thing, in fact, it 's required. Nitrogen is needed for the production of proteins and amnio acids, while phosphorous is required for the synthesis of DNA and RNA, and is involved in energy transfers. (Danver & Burch, 2011) However, too much of a good thing, can be a bad thing.

Sediment collected from the riverbank as the river flows downstream is also a problem; it increases the turbidity of the river, and this makes it difficult for plants to receive the necessary sunlight needed for survival. When these plants die, there is less food for fish and other river animals. Bacteria levels also rise in the water, because it can cling to sediment very easily. When there is more sediment, there are more places for the bacteria to collect. (Helsel & Mueller, 2009). All of these problems are occurring as the water is flowing along the river banks, collecting even more sediment, and pollutants as it travels downstream and deposits into the Gulf of Mexico. When all of this sediment, nitrogen and bacteria flow into the Gulf of Mexico, it causes changes in the water there. The increase in the level of nitrogen causes plankton to grow faster. When the plankton decomposes it takes a large amount of oxygen out of the water. The bacteria break down the decomposed plankton, which releases carbon dioxide, taking increasing levels of oxygen out of the water in the Gulf. Eventually the level of oxygen decreases to a point where most living organisms cannot survive. Some animals flee while other plants and animals that cannot leave usually die. This is referred to as the Dead Zone in the Gulf of Mexico. (Gulf of Mexico; NOAA, 2009). With an expected increase in the size

Since the beginning of the human race, people have flocked to the ocean. The largest civilizations were built in fertile, coastal areas. Oceanographer and professor at Stanford University, Mark Denny, opened up his book, How the Ocean Works: An Introduction to Oceanography, with the statement, “Throughout history, men and women have been drawn to the sea” (Denny 1). Here in Hawaii, this is especially notable. Hawaii was discovered by islanders who were adventuring across the sea, using it to feed them and working with the currents on their journey. Now, hundreds of years later, visiting the white sandy beaches and crystal blue waters of Hawaii is on nearly the whole world’s bucket list, but it might not be around for much longer. This would be devastating to the planet, as environmental expert Jennifer Weeks says oceans supply most of the Earth’s food and oxygen (Weeks). Not only does the sea provide the most basic necessities for survival, but it has also provided “...Anticancer and antiviral drugs based on substances produced by coral reef species...” (Weeks). Despite all the research that has been done, and is currently underway right this moment, we still know less about the ocean than we do about space! Elisabeth Mann Borgese, an expert in environmentalism, has written, “Our ignorance of the ocean is profound, and although we have learned much during the last hundred years, our knowledge of ocean processes and life in the oceans will remain forever incomplete” (Borgese 23). As Borgese said, it is impossible to learn all there is to know about the sea, but knowing what to do to fix the state of the world’s oceans is vital and attainable information.

Except for those who take a look and take the time to discover the causes. One of the many causes of the oceanic dead zones is synthetic fertilizers.

The largest source of contamination is runoff from land. Toxic runoff can be sewage, rainwater flowing over exposed topsoil, flooding or agricultural runoff. Rain can cause runoff of chemicals or waste that can seep into creeks, rivers and other waterways that lead to the ocean. Some of the chemicals found could be antibiotics or waste from animals, pesticides from crops or from pollutants, originating in the air, which have settled on land and washed away. Unless a solution to pollution runoff is found, this type of contamination will continue indefinitely and contribute to the deterioration of the ecosystem in the