Eutrophication Essays (Examples)

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Social Ecology of Health Promotion

Words: 2664 Length: 9 Pages Document Type: Essay Paper #: 8454350

Social Ecology of Health Promotion

Module 05 Question 01: explain the rationale behind the federal government's approach to regulatory containments in food.

The federal government's approach in relation to the regulation of the containments in food, aims at protecting the consumers on food insecurity through elimination of food pathogens. It is the role of the government to enhance the health system and conditions of its citizens through adoption and implementation of various rules and regulations in relation to the containments in food. The food supply of the United States integrates multi-faceted production system and delivery components. Some of the critical or essential components of this system include production, processing, preparing, packaging, labelling, distribution, and consumption of the food components (Fortin, 2011).

There is a risk in relation to the concept of each stage of the food supply system in the context of the United States. This makes it ideal for…… [Read More]

References

Marco-Barba, J., Mesquita-Joanes, F., & Miracle, M. (2013). Ostracod palaeolimnological analysis reveals drastic historical changes in salinity, eutrophication and biodiversity loss in a coastal Mediterranean lake. Holocene, 23(4), 556-567.

Le Bagousse-Pinguet, Y., Liancourt, P., Gross, N., & Straile, D. (2012). Indirect facilitation promotes macrophyte survival and growth in freshwater ecosystems threatened by eutrophication. Journal Of Ecology, 100(2), 530-538.

Riplett, L., Engstrom, D., & Conley, D. (2012). Changes in amorphous silica sequestration with eutrophication of riverine impoundments. Biogeochemistry, 108(1-3), 413-427.

Gareca, E.E., Vandelook, F., Fernandez, M., Hermy, M., & Honnay, O. (2012). Seed
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Global Pollution Has Increased Significantly

Words: 1562 Length: 5 Pages Document Type: Essay Paper #: 17928543

While global warming is still hotly debated global pollution is already a fact. An environmentally sustainable development plan is the need of the hour.

ibliography

1) University of East Anglia (2009, November 17). 'Fossil fuel carbon dioxide emissions up by 29% since 2000.' ScienceDaily. Retrieved December 9, 2009, from http://www.sciencedaily.com/releases/2009/11/091117133504.htm

2) NGC, 'Acid Rain', retrieved Dec 9th 2009, from,, http://environment.nationalgeographic.com/environment/global-warming/acid-rain-overview.html

3) WHO, (2006), 'Indoor air pollution. 4000 deaths a day must no longer be ignored', retrieved Dec 9th 2009, from, http://www.who.int/bulletin/volumes/84/7/editorial30706html/en/index.html

4) lacksmith Institute, (2009) 'Pollution Facts, Retrieved December 9, 2009, from, 'http://www.worstpolluted.org/pollution-facts-2009.html

5) U.S. PIRG Education Fund, (Jan 2005), 'Pollution on the Rise: Local Trends in Power Plant Pollution', retrieved Dec 9th 2009, from http://cdn.publicinterestnetwork.org/assets/0kExFsxeEE6g_YLDhOxTAA/Pollution_On_The_Rise.pdf

6) NASA, 'NASA Satellite Measure Pollution from East Asia to North America', retrieved Dec 9th 2009, from, http://www.nasa.gov/topics/earth/features/pollution_measure.html

7) EEA Report, (2008) 'Greenhouse Gas Emission Trends and Production in Europe 2008', retrieved Dec 9th…… [Read More]

Bibliography

1) University of East Anglia (2009, November 17). 'Fossil fuel carbon dioxide emissions up by 29% since 2000.' ScienceDaily. Retrieved December 9, 2009, from http://www.sciencedaily.com/releases/2009/11/091117133504.htm

2) NGC, 'Acid Rain', retrieved Dec 9th 2009, from,,  http://environment.nationalgeographic.com/environment/global-warming/acid-rain-overview.html 

3) WHO, (2006), 'Indoor air pollution. 4000 deaths a day must no longer be ignored', retrieved Dec 9th 2009, from, http://www.who.int/bulletin/volumes/84/7/editorial30706html/en/index.html

4) Blacksmith Institute, (2009) 'Pollution Facts, Retrieved December 9, 2009, from, ' http://www.worstpolluted.org/pollution-facts-2009.html
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Environment Lake Victoria Is a

Words: 1940 Length: 6 Pages Document Type: Essay Paper #: 62453065

Still, it is not unimaginable, within a lake as large as Victoria that they might also divide into separate populations along very subtle lines of variation -- like mating behaviors or feeding preferences.

This sort of interpretation of the situation in Lake Victoria, however, rests upon the notion that the species of cichlid found there evolved from a single ancestral species. Yet, even Meyer acknowledges that this might not be the case: "Within the past decade, however, morphology has increasingly emphasized the view that the flock may be polyphyletic." Put differently, it is possible that the species of cichlid that have evolved in Lake Victoria came from a group of distinct, but closely related, fish that colonized the region several thousand years ago. If this is the case, then the scientific importance of the Victorian cichlids would be somewhat diminished, because a less explosive series of adaptive radiations could explain…… [Read More]

Reference:

Goldschmidt, Tijs. 1998. Land-Use Changes and NIS in Lake Victoria. Bright and Lodge, 1998.

Kolar, Cynthia S. And David M. Lodge. 2000. Invasive Species in a Changing World. Washington D.C.: Island Press.

Meyer, Axel et al. 1990. Monophyletic Origin of Lake Victoria Cichlid Fishes Suggested by Mitochondrial DNA Sequences. Nature, 347.

Office of Protected Resources. 2005. Endangered Species Act of 1973. NOAA Fisheries. Available:
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Dead Zone Consequences on Marine

Words: 397 Length: 1 Pages Document Type: Essay Paper #: 57168725

It can be influenced by winds and tides. Infrequent episodic oxygen depletion occurs less than once per year. It is the first signal a system has reached a critical point of eutrophication, which combined with physical processes causes hypoxia. Persistent hypoxia occurs in systems prone to persistent stratification. It accounts for 8% of the dead zones (Diaz).

Progression

Phase one of coastal hypoxia enhances the deposition of organic matter that promotes microbial growth and respiration and produces greater demand for oxygen. DO levels deplete with stratification. Phase two hypoxia will become transiently causing mass mortality of benthic animals. Phase three, after time and continued buildup of nutrients and organic matter, hypoxia becomes seasonal or periodic. Phase four, if conditions persist, causes the hypoxia zone to expand and, as DO levels fall, anoxia establishes and releases microbial generated H2S. The critical point is the appearance of severe seasonal hypoxia.

Causes

Hypoxia…… [Read More]

References

Diaz, R.J. & Rosenberg, R. "Spreading Dead Zones and Consequences for Marine Ecosystems." Science, vol 321 (2008): 926-929. article.
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Glacial Melting Though Global Acclimate

Words: 1319 Length: 5 Pages Document Type: Essay Paper #: 40781472



Island nations may be beautiful, but their isolation makes them vulnerable to outside forces that increasingly threaten their survival. Rising sea levels linked to global warming could submerge some altogether. Tuvalu, a est Pacific nation whose peak height rises just 5 meters over sea level, could be uninhabitable within 50 years, some experts say. A similar fate could also doom the Maldives, the Marshall Islands, Kiribati, and Tokelau. Of all the threats facing island nations, the rise in sea level could be the most catastrophic....in the early 1990s, satellites began generating more comprehensive profiles of global sea level. Thanks to these orbiting systems, scientists now know that the average global rate of sea level rise has increased 50% during the last 12 years -- up to 3 millimeters per year from a 50-year annual average of 2 millimeters,...NASA..

Schmidt 605)

hen we discuss this issue we often slide back to…… [Read More]

Works Cited

Mastny, Lisa. "More Evidence of Antarctic Melting Reported." World Watch July-Aug. 2005: 9.

Pitois, Sophie, Michael H. Jackson, and Brian J.B. Wood. "Sources of the Eutrophication Problems Associated with Toxic Algae: An Overview." Journal of Environmental Health 64.5 (2001): 25.

Schmidt, Charles W. "Keeping Afloat: A Strategy for Small Island Nations." Environmental Health Perspectives 113.9 (2005): 606.

Schwartz, Brian S., Cindy Parker, Thomas a. Glass, and Howard Hu. "Global Environmental Change: What Can Health Care Providers and the Environmental Health Community Do about it Now?." Environmental Health Perspectives 114.12 (2006): 1807.
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Internal P Loading in Shallow

Words: 6811 Length: 21 Pages Document Type: Essay Paper #: 45622903

This study demonstrates that different total P. fraction releases may differ between two bodies of water under similar oxygen conditions (Kisand & Noges, 2003). This study is important in that it highlights the complexity of understanding P. fractions in any given body of water. There are a multitude of potential reactions in any body of water. Oxygen plays a role in the reactions of any individual lake, but one cannot make predictions based on oxygen level alone.

Shallow lakes differ from stratified lakes in many ways. A stratified lake typically reaches equilibria in such a manner that it becomes divided into regions. This is not the case with shallow lakes. With a shallow lake, the entire lake may change from clear water to macrophyte dominated to algae dominated, each phase has its own state of equilibrium (Dokulil & Teubner, 2003). Total chlorophyll to phosphorus ratios are different in these various…… [Read More]

References

Burger, D., Hamilton, D., Pilditch, C., & Gibbs (2007).Benthic nutrient fluxes in a eutrophic polymictic lake. Hydrobiologia. 584, 13-25.

Dokulil, M., & Teubner, K. (2003). Eutrophication and restoration of shallow lakes - the conceptof stable equilibria revisited. Hydrobiologia. 506-509, 29-35.

Farmer, J., Bailey-Watts, a., Kirika, a., and Scott, C. (2006).

Aquatic Conservation: Marine and Freshwater Ecosystems. 4 (1): 45-56.
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Dealing With Pollution in Water Runoff

Words: 1801 Length: 5 Pages Document Type: Essay Paper #: 80620053

clarion call for the people and leaders of El Paso to better focus (or at least start focusing) on the subject of soil erosion, water runoff and sedimentary issues relating the land and material around the roads and bridges of our town. While some may treat this subject as relatively or completely unimportant, this could not be further from the truth. As shown by what can happen with things like flash floods, landslides and so forth, the proper management of waste and rain water runoff is very important and should be handled in an evidence-based way rather than a cobbling together of a budget line item here and there. While a lot of the calls for more infrastructure funding and better infrastructure management are over the top, this is not one of those messages and not one of those subjects that should be easily dismissed or set aside.

Analysis

The…… [Read More]

References

Haiyan, L., Liang, L., Mingyi, L., & Xiaoran, Z. (2013). Effects of pH, Temperature,

Dissolved Oxygen, and Flow Rate on Phosphorus Release Processes at the Sediment and Water Interface in Storm Sewer. Journal of Analytical Methods In

Chemistry, 1-7. doi:10.1155/2013/104316

Karlsson, K., & Viklander, M. (2008). Trace Metal Composition in Water and Sediment
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Fate of Carbon in a

Words: 4902 Length: 17 Pages Document Type: Essay Paper #: 48440011



The fact is that numerous rooted macrophyte structures are not full of naturally strong and healthy particles and sediments and nutrients. It is because of the restriction or absence of these particles, sediments and nutrients that the study of these systems has not been as extensive and thorough as the concentration on the terrestrial structures when understanding the fate, sources and sinks of Co2 levels in the ecosystems and the plants structures (e.g., Drake and Leadley 1991). Researchers assert that "rooted macrophyte systems can be sources of CO2, Chapter 4 and other gases through microbial processing of organic matter in the sediments and direct emission from leaves" (Delaune et al. 1990).

Table 1. Total net primary production (NPP) from world systems (Modified from Valiela, 1984)

Area

NPP

Tot. NPP1

% of Total

% of Total

106 km2

gC m-2 y-1

X106mTC y-1

System

Global

Marine System:

Open Ocean

46

15,355…… [Read More]

Bibliography

Abel K.M. (1984) Inorganic Carbon Source for Photosynthesis in the Seagrass Thalassia hemprichii (Ehrenb.) Aschers. Plant Physiology 76, 776-781.

Adam, P. 1990. Saltmarsh ecology. Cambridge Univ. Press. Cambridge. 461p.

Agren, G., R.E. McMurtrie, W.J. Parton, J. Pastor and H.H. Shugart. 1991. State-of-the-art of models of production-decomposition linkages in conifer and grassland ecosystems. Ecological Applications. 1:118-138.

Anderson, J.M. 1991. The effects of climate change on decomposition processes in grassland and coniferous forests. Ecological Applications 1:326-347.
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Man on the Environment Dependence

Words: 2580 Length: 9 Pages Document Type: Essay Paper #: 87392302



Like most complex systems, ecosystems tend to exemplify cyclic fluctuations around a state of estimated stability. Looking at the picture from a long-term perspective, however, ecosystems inexorably alter when the atmosphere changes or when a very different species appears because of migration or evolution -- or they are introduced deliberately by humans (utherford & Ahlgren 1991). What all this illustrates is not only mankind's dependence on the environment, but how mankind finds itself confronted with the fact that it may be living at the expense of future humans to come. Our innovations -- especially technological ones -- may hide the decrease in the earth's potential to maintain human activities, but, looking at the situation from a long-term perspective, the technological (or other) innovations will not be able to compensate for the major reduction in essential resources such as productive land, fisheries, forests, and biodiversity (Daily 1997).

On a global scale,…… [Read More]

References:

Cunningham, William P. & Cunningham, Mary Ann. (2008). Principles of environmental science: inquiry and applications. (Custom 5th edition). New York: McGraw-Hill.

Daily, Gretchen C. (1997). Nature's services: societal dependence on natural ecosystems.

Island Press.

Daily, Gretchen C., Kibert, Charles J., & Wilson, Alex. (1999). Nature's services:
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Terrestrial Resources at a Global

Words: 1567 Length: 5 Pages Document Type: Essay Paper #: 43090427

This would require the full support of government and state authorities to punish those who break the rules. For instance, officers should patrol the forests and severely fine the tourists who leave trash in the nature. Also, a radical change should come from the multinationals, which should respect stricter environment protection rules and should pay drastically when breaking these rules. The first point in this direction would be achieved once the population has an environment education and would then punish and ban the organizations which break these rules. With a damaged reputation and customers refusing to purchase their products, the corporations would have to reconsider their actions. Then, the second direction would appeal to the good will of the people and would state that the good deeds relative to the natural habitats are a social duty of each and every one of us. Therefore, if these two courses of action…… [Read More]

References

Leonard, a., 2008, the Story of Stuff, http://storyofstuff.ethicalbrand.org/,last accessed on July 10, 2008

January 10, 2000, Impact of Solid Waste, Greater Johannesburg Metropolitan Council, http://www.ceroi.net/reports/johannesburg/csoe/html/nonjava/Waste/solid/Impact.html. Ast accessed on July 10, 2008

1997-2008, Garbage - How Can My Community Reduce Waste?, the Annenberg Media

http://www.learner.org/interactives/garbage/solidwaste.htmllast accessed on July 10, 2008
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Nitrogen Dioxide Killing U S Softly

Words: 2609 Length: 9 Pages Document Type: Essay Paper #: 18630416

The former had been neglected. This was a very serious kind of neglect, she said. She concluded that unless the nitrogen problem was confronted and adequately contained, climate change would not be solved (ohan).

Toxicity

EPA established that exposure to indoor NO below the 53 ppb outdoor standard could lead to respiratory symptoms among children with asthma, especially in a multi-family setting (elanger 2006). This effect continues to be a public health issue because of the number of people exposed to the gas. According to the U.S. Census, more than half of all U.S. households use gas. Their primary source of residential NO is a gas-fueled cooking appliance. This was the summary finding of a study conducted with 1,002 participating families in Connecticut and southwestern Massachusetts from 1997 to 1999. It associated indoor NO with increased respiratory symptoms among asthmatic children. At present, there are no U.S. standards for indoor…… [Read More]

Bibliography

Belanger, K., et al. (2006). Association of indoor nitrogen dioxide exposure with respiratory symptoms in children with asthma. 10 pages. American Journal of Respiratory and Critical Care Medicine: American Thoracic Society

Bohan, S. (2007). Nitrogen overdose. 4 pages. Oakland Tribune: ANG Newspapers

Fields, S. (2004). Global nitrogen. cycling out of control. 9 pages. Environmental Health Perspectives: National Institute of Environmental Health Sciences

Osenga, M (2005). EPA Proposes stationary diesel emissions regulations. 3 pages. Diesel Progress: Diesel and Gas Turbine Publications
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Jellyfish Are Marine Invertebrates Which

Words: 3078 Length: 10 Pages Document Type: Essay Paper #: 29181795

.. provide nourishment for the small organisms on which jellyfish feed. In waters where there is eutrophication, low oxygen levels often result, favoring jellyfish as they thrive in less oxygen-rich water than fish can tolerate. The fact is that jellyfish are increasing is a symptom of something happening in the ecosystem."

Researchers have been the ones that have as well contended that in some arias, such as the Gulf of Mexico or the Adriatic Sea, jellyfish have taken the role of fish, the former animals' number being far greater than the one of the latter's, and this can be as well put on the intensity with which the human intervene in the nature's life. Moreover, it has been observed that in the above-mentioned areas jellyfish have formed a sort of "gelatinous cover" of the water. In my opinion, this might be the reason for which during many years, Jelly researchers…… [Read More]

Bibliography

Pieribone, V. And D.F. Gruber, Aglow in the Dark: The Revolutionary Science of Biofluorescence. Harvard University Press, 2006, 288p;

Jacobson, Morris, Wonders of Jellyfish. New York: Dodd Mead, 1978

Jellyfish - Sea Science Series, at http://www.dnr.sc.gov/marine/pub/seascience/jellyfi.html

Kyle McGilligan Bentin, "Jellyfish up close," at http://danenet.wicip.org/mmsd-it/jellyfish.html
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Water Pollution Remains One of

Words: 2012 Length: 6 Pages Document Type: Essay Paper #: 39096343

In the absence of proper waste management laws and regulations, as well as poor enforcement of existing waste disposal laws, an increase in the number of manufacturing entities would inevitably increase instances of water pollution. According to Goel (2006), the mere fact that smaller cities report less instances of water pollution than larger cities is a clear indicator of the relationship that exists between population density and water pollution levels. In the final analysis, "population growth and industrialization, both work synergistically to increase the levels of pollution" (Goel, 2006).

With the various issues presented in the text above in mind, prevention remains one of the best and most valid solutions to the problem of water pollution. To begin with, there exists a need to ensure that all toxic chemicals are disposed off in a proper and safe way. Proper treatment of waste material is also another critical preventive measure. The…… [Read More]

References

Girard, J. (2009). Principles of Environmental Chemistry (2nd ed.). Sudbury, MA: Jones & Bartlett Publishers.

Goel, P.K. (2006). Water Pollution: Causes, Effects, and Control. New York: New Age International.

McKinney, M.L., Schoch, R.M. & Yonavjak, L. (2007). Environmental Science: Systems and Solutions (4th ed.). Sudbury, MA: Jones & Bartlett Publishers.

Miller, G.T. & Spoolman, S. (2008). Environmental Science. Belmont, CA: Thomson Higher Education.
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Water Pollution Water Is an Important Natural

Words: 1350 Length: 4 Pages Document Type: Essay Paper #: 17375894

Water Pollution

Water is an important natural resource upon which all the living beings rely for their existence and growth. Nature has blessed the earth with uncountable water resources but usable quantity is limited. Hence, it is important to use water sparingly. The irony is, human activities result is high water pollution which further shortens the water supply for use.

"In an age when man has forgotten his origins and is blind even to his most essential needs for survival, water along with other resources has become the victim of his indifference" (Carson, 2002, p. 39).

Water is considered to be most crucial one among all the world's natural resources. Although it covers the largest part of the earth's surface (70%), yet it is the limiting factor most of the times. This is because most of this water is not available for use in agriculture or for other human needs…… [Read More]

References

Carson, R. (2002). Silent Spring. New York: Houghten Mifflin.

Chiras, D.D. (2012). Environmental Science. Burlington: Jones and Bartlett Publishers.

Dowdeswell, E. (1996, October). Water. Our planet. Retrieved from  http://www.ourplanet.com/imgversn/83/editoral.html 

Duhigg, C. (2009, September 17). Health Ills Abound as Farm Runoff Fouls Wells. New York Times. Retrieved from http://www.nytimes.com/2009/09/18/us/18dairy.html
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Analyzing Pollution in the Oceans

Words: 2524 Length: 6 Pages Document Type: Essay Paper #: 49155046

Systems Thinking Applied to Sustainability Challenges

"SYSTEMS THINKING IS CRITICAL IN DEVELOPING SOLUTIONS TO SUSTAINAILITY CHALLENGES"

POLLUTION IN THE OCEANS

"Systems Thinking is Critical in Developing Solutions to Sustainability Challenges"

Pollution in the Oceans

Ocean pollution is an issue for both society and individuals. Such complex issues exhibit some commonality, including being nonlinear, being heterogeneous, interdependent and self organized. It follows, therefore, that the issues require well thought-out and equally complex solutions. Venturing on pursuing causes without structured frameworks is a waste of time.

'Systems thinking' provide a new model for solving complex problems that afflict society; including pollution issues. In the system, biology interacts with social, cultural and manmade environmental elements in permutations and combinations that continue to evolve, discontinuously. The causes of pollution (Anon., n.d.) arise at various levels. They also interact at these varying levels. Organizations and individual entities are important at any given level. There is…… [Read More]

Bibliography

Anon., n.d. [Online]

Available at: http://www.enesco.org/new/fileadmin/MULTIMEDIA/HQ/SC/pdf/interagency_blue_paper_ocean_rioPlus20.pdf

Anonson R., B. B. J. F. P. W. e. a., 2003. Causes of Corol ref degradation.. [Online].

Business Dictionary, n.d. [Online]
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Ecological Balance of the Coral

Words: 873 Length: 3 Pages Document Type: Essay Paper #: 2824796

It should not be a difficult question to answer: we must begin reducing ocean pollution and taking steps to prohibit overfishing of our ocean shallows.

The plan that is formulated to address the overfishing and man-made pollutants in the coral reefs must be conducted by authorities in marine and ecological sciences. It must be conducted on two levels: the fishing industry associated with the catches on the coral reefs; and the pollutants that are introduced into the coral reefs through contact with man. This can be done by monitoring commercial tourism and diving industries, which claim there is no residual effect on the coral reefs (Carrier, James, and McLeod, Donald, 2005, p. 315).

The Plan for Preserving the Coral eefs

Action Items in the correct order)

Action Steps

Timeline

esearch and identify the effects of overfishing of species found in coral reefs.

eview fishing data as it pertains to catches,…… [Read More]

References

BBC/Discovery Channel (2006). Planet Earth: Shallow Seas, documentary film,

Discovery Channel, 12 October 2008. http://www.questia.com/PM.qst?a=o&d=5009915994

Carrier, J.G., & Macleod, D.V. (2005). Bursting the Bubble: The Socio-Cultural Context of Ecotourism. Journal of the Royal Anthropological Institute, 11(2), 315+. Retrieved October 26, 2008, from Questia database: http://www.questia.com/PM.qst?a=o&d=5009915994

Tibbetts, J. (2004). The State of the Oceans, Part 2: Delving Deeper into the Sea's Bounty. Environmental Health Perspectives, 112(8), 472+. Retrieved October 26, 2008, from Questia database: http://www.questia.com/PM.qst?a=o&d=5011316980