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What is the human event that can cause an increase in freshwater algae growth?
Wiki User
∙ 12y ago
Activities such as shipping, dams, watering and fertilization of crops and dredging have an impact on algae.
Wiki User
∙ 12y ago
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What can cause excess growth of algae in water?
Algae is caused by the change of nutrients in the water.
What washes into streams that may cause plant and algae growth?
Fertilizers wash into streams that may ultimately cause plant and alge growth. This is often caused when near by farms use fertilizers on their crops to get them to grow faster.
What are the causes and effects of freshwater algal blooms?
Lakes and ponds undergo natural processes of change over time. Eutrophication is a process in which nutrients, such as nitrogen and phosphorus, build up in a lake or pond over time, causing an increase in algae growth. Certain natural events and human activities can increase the rate of eutrophication. For example, when farmers and homeowners spread fertilizers on fields and lawns, some of the nutrients can run off into nearby lakes and ponds. Sewage treatment plants can leak waste water into the soil. The nutrients in the waste water make their way from the soil into water that leads into lakes and ponds. These events cause a rapid increase in algae growth. If the nutrient sources can be eliminated and the nutrients used up, eutrophication slows to its natural rate. Eutrophication triggers a series of events with serious consequences.First, the layer of algae prevents sunlight from reaching plants and other algae beneath the surface. Those organisms die and sink to the bottom. Then decomposers, such as bacteria, which break down the bodies of the dead organisms, increase in number. Soon the bacteria use up the oxygen in the water. Without oxygen, fishes and other organisms in the water die. About the only organisms that survive are the algae on the surface.
Does primary growth of a monocot stem cause an increase in a diameter or length?
because of the gravity of the earth
What is the main ingredient in fertilizers that can cause algae bloom?
The main ingredient in fertilizers that can cause algae blooms is phosphorus. When excess phosphorus enters bodies of water, it can promote the growth of algae, leading to harmful algal blooms. These blooms can disrupt aquatic ecosystems and deplete oxygen levels in the water, negatively impacting fish and other marine life.
Why do algal bloom occurs?
An increase in nutrients can cause algae growth and reproduction to increase dramatically into a bloom.
What can cause excess growth of algae in water?
Algae is caused by the change of nutrients in the water.
Why is algae growth bad?
Too much algae can reduce oxygen in water. This can cause many fish to die.
What is the major cause of the increase of the water withdraw from our freshwater sources?
Agriculture.
Phosphates and nitrates entering a lake can cause an explosive growth of algae called?
An "algal bloom".
Why are chemical fertilizers harmful if they get in water?
Some chemicals are toxic at elevated levels (such as ammonia) and can cause mortality to fish populations, the majority are not at levels that increase mortality but they do encourage the growth of algae and other plant growth in the water. When the algae dies it decomposes using up the oxygen in the water - killing the fish. This process is called eutrophication (enriching) of the water ecosystem.
What are blooms in ponds caused by?
An overabundance of nutrients and lack of predators. Growth of the plants or algae can, if not eaten, cause a bloom.
How can population growth increase the premature extinction of wildlife?
when a predator developes a population growth increase, its prey will be over-hunted and could cause premature extinction
Increase in expected growth rate does what to required return rate?
An increase in a firm's expected growth rate would normally cause its required rate of return to
A major burden to the growth of china's economy was cause by?
A major burden to the growth of China's economy was cause by the high population growth. An increase in the population has resulted into limited resources among the residents.
How does temperature affect the growth and yield of crops?
When annual temperatures increase sharply above the ideal crop temperature, it can cause a decrease in a crop's yield. Likewise, other factors like an increase in carbon dioxide levels can cause an increase in the growth of crops.
Does fertilizer runoff impact water supplies?
Most agricultural and lawn fertilizers cause algae to grow. Whether that is considered beneficial depends on whether algae is a desired product. Fertilizers can be intentionally applied to holding ponds to cause algae growth, while unintended fertilizer runoff can cause oxygen-depleting blooms that harm the environment.
