It simply becomes difficult to set the fishing nets in the water, and the plants floating on water also limits the mobility of boats and other fishing vessels. There are several causes of eutrophication derived from human activity. This task is challenging as the Mississippi River delivers water from a large portion of the central United States, and the Mississippi River basin contains over half of all U.S. farms. Plants die without sunlight. Eutrophication sets off a chain reaction in the ecosystem, starting with an overabundance of algae and plants. Cultural practices and environmental factors cause eutrophication. Protecting marine resources starts with sound agricultural and waste management practices. One of the main characteristics of eutrophication is the increased growth of minute floating plants such as algae and photosynthetic bacteria and the development of extensive and dense mats of floating plants such as Nile cabbage and water hyacinths. During last decade, for instance, more than 2 million residents of Wuxi, China, could not access piped drinking water for more than a week due to severe attack by algal blooms on Lake Taihu. Eutrophication is a process which is caused when too many nutrients enter a body of water causing large growth of some species of algae, degradation of sea life and overgrowth of water bodies. Increased nutrient enrichment can arise from both point and non-point sources (also called 'diffusive pollution sources'): . Strengthening Laws and Regulations against Non-point Pollution, 25+ Powerful Reasons Why Plastic Bags Should be Banned Immediately, 35 Reasons Why We Need to be Environmentally Conscious, reduced light penetration into the lower depths of the water, an extensive deterioration of water quality, management of nutrient entry into water systems, Can You Recycle Photos? Harmful algal blooms, dead zones, and fish kills are the results of a process called eutrophication â which occurs when the environment becomes enriched with nutrients, increasing the amount of plant and algae growth to estuaries and coastal waters. The depleted oxygen levels impare or could kill fish in large numbers and change species composition. Eutrophication is most often the result of human activity. These fertilizers are the perfect type of nutrients to feed hungry algae and plankton, and when it rains, these fertilizers run off into lakes, streams, rivers and oceans. due to runoff from the land, which causes a dense growth of plant life. National Centers for Coastal Ocean Science, Nonpoint Source Pollution Education Tutorial, National Oceanic and Atmospheric Administration, groundbreaking modeling project in Long Island Sound. As an outcome, the algal blooms limit the amount of dissolved oxygen required for respiration by other animal and plant species in the water. Why should we worry about eutrophication and how is this problem managed? Eutrophication (from Greek eutrophos, "well-nourished"), dystrophication or hypertrophication, is the process by which a body of water becomes overly enriched with minerals and nutrients which induce excessive growth of algae. If aquiculture is not properly managed, the unconsumed food particles together with the fish excretion can significantly increase the levels of nitrogen and phosphorous in the water, resulting in dense growth of microscopic floating plants. The most important at the global level is agriculture due to the use of fertilizers, mainly nitrates, which are often used without proper care and curing and end up in surface or groundwater by leaching and hauling from fertilizers from the land in the ones that were used. The most common nutrients causing eutrophication are nitrogen N and phosphorus P. The main source of nitrogen pollutants is run-off from agricultural land, whereas most phosphorus pollution comes from households and industry, including phosphorus-based detergents. The main cause of eutrophication is the large input of nutrients to a water body and the main effect is the imbalance in the food web that results … (And Ways to Dispose of Them), Are Yogurt Cups Recyclable? A large algal bloom and consequent eutrophication is visually evident on the side where carbon, nitrogen, and phosphorus were added. When the plant growth or aquatic vegetation becomes too dense, it negatively impacts aquatic life and fisheries. This leads to a reduced catch for commercial and recreational fisheries, meaning smaller harvests and more expensive seafood. The depleted oxygen levels impare or could kill fish in large numbers and change species composition. Causes of eutrophication. When fertilizer enters the water, this becomes food for algae. Unless you strongly believe in Elon Musk‘s idea of making Mars as another habitable planet, do remember that there really is no 'Planet B' in this whole universe. Harmful algal blooms, dead zones, and fish kills are the results of the eutrophication process—which begins with the increased load of nutrients to estuaries and coastal waters. The overloading of seas, lakes, rivers and streams with nutrients (nitrogen and phosphorus) can result in a series of adverse effects known as eutrophication. Here's a direct link to
Harmful algal blooms, dead zones, and fish kills are the results of a process called eutrophication — which occurs when the environment becomes enriched with nutrients, increasing the amount of plant and algae growth to estuaries and coastal waters. “Eutrophication: causes, consequences & control” offers a cutting-edge resource for researchers and students alike who are studying eutrophication in various ecosystems.