How do fertilizers affect water ecosystems?

Answer 1

Fertilizer runoffs have a huge impact on water ecosystems. The fertilizers increase the growthof algae and other aquatic weeds just as it improves plant production in normal soil. The excessive growth of algae and other aquatic plants form a blanket on the water surface, preventing sunlight from entering the water and using up most of the dissolved oxygen. This suffocates and kills other forms of aquatic life.

Answer 2

By allowing nitrogen and phosphorous fertliziers into a lake or pond, the growth of plants and algae increases. This can deplete the lakes oxygen supply which kills fish. the accumulation of fish and dead plants makes the lake shallower. It then turns into a swamp before becoming dry land.

Answer 3

If fertilizer is washed out into a large body of water, it can promote algae blooms. Some are harmless, but some algae release toxins that kill other marine plants and animals. (They can also harm people who are exposed to the toxins directly or indirectly.)

Algae blooms also decrease the amount of sunlight getting into the water - not so good for other marine plants that needed the light! They also deplete the amount of oxygen in the water, causing marine animals to suffocation Certain kinds of fertilizers that are washed into a body of water that contains fish can change the sex of certain fish to the opposite sex.

Answer 4

Fertilizer runoff from agricultural applications have been shown to have negative impacts on aquatic ecosystems. The fertilizer contains compounds which cause the oxygen levels in the water to drop, leading to fish kills and the death of other organisms living in the body of water.

Answer 5

Nitrogen and Phosphorus fertilizers increase the growth of plants and algae. This would then cause a decrease in oxygen levels, which would kill fish and plants.

Answer 6

The chemicals in the fertislizer travels down to the sea and animals eat it.

Answer 7

Phosphates in fertilizers affect the environment by causing Eutrophication. Eutrophication is when an environment has too much nutrients in it. Which causes oxygen depletion.

Answer 8

the fertilser causes the weeds, in the water, to grow to mass sizes. This clgos the stream and kills life in it.

Answer 9

Fertilizers are supplied to crops. These when enter water bodies cause pollution.