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An Essay On Eutrophication

Treatment of Nitrogen-Polluted Sediment Using Marine Anammox Bacteria

Feb. 5, 2018 — Working on a way to alleviate eutrophication in coastal waters, scientists have found a combination of bacteria with the potential to lighten the impact of excess nitrogen found in many coastal water ... read more

Lake Brownification, Eutrophication Decrease the Content of Essential Fatty Acids in Fish Used in Human Diets

Sep. 30, 2016 — Eutrophication and brownification change phytoplankton community structure and decrease the production of essential omega-3 fatty acids in lakes. Perch growing in oligotrophic clear-water lakes ... read more

Biodiversity Can Promote Ecosystem Efficiency

Feb. 16, 2017 — Humans influence evolution. In the case of whitefish in Swiss lakes, one consequence of this is replacement of a diversity of specialized species by fewer generalists. A recent analysis now suggests ... read more

Nitrogen, Phosphorus from Fertilizers and Pet Waste Polluting Urban Water

Apr. 5, 2017 — New research points to lawn fertilizers and pet waste as the dominant sources of nitrogen and phosphorus pollutants in seven sub-watersheds of the Mississippi River in Saint Paul, ... read more

Oct. 1, 2015 — A nutrient-rich, balanced diet is beneficial to corals during stressful thermal events, new research shows. The study concluded that the particular nutrient balance in seawater is what matters ... read more

Apr. 6, 2015 — Salt marshes at higher latitudes, including those in densely populated coastal regions of New England and Europe, are more vulnerable to the effects of eutrophication, which, if left unchecked, can ... read more

Combined Nutrients and Warming Massively Increase Methane Emissions from Lakes

Jan. 22, 2018 — Shallow lakes in agricultural landscapes will emit significantly greater amounts of methane, mostly in the form of bubbles (ebullition) in a warmer world, which is a potential positive feedback ... read more

Too Many Nutrients Make Microbes Less Responsive

Dec. 11, 2017 — Bacteria in lakes play a key role in maintaining water quality by absorbing excess nitrogen and phosphorus. They also help store carbon, which has implications for our climate. But, as it turns out, ... read more

Dec. 18, 2017 — Lakes suffering from harmful algal blooms may not respond to reduced, or even discontinued, artificial nitrogen loading. Many blue-green algae responsible for algal blooms can fix atmospheric ... read more

Double Whammy for Important Baltic Seaweed

Aug. 9, 2016 — Rising seawater temperatures and increased nutrient concentrations could lead to a decline of the bladder wrack Fucus vesiculosus in the Baltic Sea in the future, according to experiments conducted ... read more

Eutrophication can be defined as the process in which too much nutritive amelioration in water bodies occur and thus leading to problems that are related with algal or cyanobacteria increase (Harper 1992). Eutrophication can be natural or cultural. Natural eutrophication reposes on limited natural geology and features of the affected catchment water body, while cultural eutrophication is related to social actions that end up hastening the eutrophication course past the natural process rate such as intensification of nutrients into marine ecosystems. This increase in nutrient enrichment which causes eutrophication, may spring up from either or both point and non-point origins that are outside the impoundment.  The nutrient enrichment may also arise from interior origins such as the sediments of an impoundment which may expel phosphate. In places with man-made internments, the abstract dissimilarity between the natural and the cultural eutrophication is less suitable (Harper 1992).

Sources of Eutrophication

Eutrophication can be contributed to by urban sources such as manufacturing wastes, domestic sewage and rainstorm drainage with the industrial sources often making the greatest impact significance, depending on industry type, discharge capacity and treatment degree. The rural sources that lead to eutrophication may consist of improper forest management, agriculture, and domestic rural residences. Among the rural contributors, agriculture is the chief contributor since it emits nitrate from the nitrogen applied to crops on which ends up in ground water. Agriculture also causes eutrophication through livestock farming, whereby phosphorous is expelled by farm animals more than the human population. Improper forest management causes eutrophication when fertilizing forests regularly (Rohlich 1969). The domestic homesteads in the rural areas are responsible for disposing off dirt into storage tanks hence causing local pollution (Scholten 2005).

Management and sustainment of eutrophication

In order to manage and sustain eutrophication, consideration has to be put on the degree of harm that eutrophication has caused on a particular water body and also analyzing the exact concentration of pollutants. There are practices that need to be applied in order to better sewerage entries into water bodies, redress and prevention of straight release of waste from waters and improvement of water bodies’ quality. Thus, the ideas on natural handling of eutrophication mess should be used as precepts of bio-remediation. Bio-remediation is a natural process that uses living things to maintain ecological balance (Scholten 2005). These can be done in chosen places of outfalls of affluent drainages into main drains. Another way to handle eutrophication is the use of hydraulic slope or gradient of water thus requiring no pumping is required. Obtaining recycled water and reusing it makes sure that there is less wastage. The superfluous nutrients in water bodies are balanced and corrected in bio-mechanisms or gathered.

Plan of dealing with eutrophication

Use of the prevention policy: Laws should be put into place in order to deal with regulation of release and treatment of sewerage and consequently reduce nutrients in the surrounding ecosystems. This policy should control fertilizer usage through agriculture and disposal of animal waste (Scholten 2005). For instance, the nitrogen produced by livestock should be redirected into farming instead of being allowed to stagnate and leach into well water. This policy can also be broken down into four segments which are; economical tools, machineries, public contribution and cooperation. Technology should be used to deal with eutrophication; there should be effective and controlled land usage. Usage of sustainable agricultural practices in the land and waste discarding technology should also be constituted so as to prevent eutrophication.

Another plan that can assist in dealing with eutrophication is growing the amount of chosen delicate parts and the increasing the treatment of urban sewerage water by phosphate digging up (Rohlich 1969).

Challenges and limitations facing the prevention policy

Eutrophication is a problem for both the ecosystems and human beings. Human beings should be aware that natural overflow is in ecosystems. It has proven very hard already to put the prevention policy in dealing with eutrophication in place. Many farmers are not supervised in their activities and thus they end up overusing pollutants to enhance their farming. Cost is another limiting factor. The cost of implementing the policy of avoiding eutrophication occurs especially in the estimation since no exact cost definition exists and also threshold stages differ (Håkanson 2008). Reabsorption of nutrients often occurs even when tons of nutrient contaminants in aquatic ecosystems are removed. These reabsorbed nutrients also feed other aquatic plants causing more problems like in the Baltic Sea (Chernewski & Schiewer 2002).

Dealing with eutrophication affects the community.

Dealing with eutrophication has many benefits which include growth in the production of vegetation and commercial forests. This in turn improves the living standards and health of the community. The different activities that are involved in eliminating eutrophication need personnel to perform and thus offer jobs to the community. Water bodies are valuable for commercial and other uses and thus make good investments for the community (Rohlich 1969).


Water resources should be highly respected and thus governments should put policies and schemes to safeguard them as valuable investments.

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