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I do not know how often it happens but i don know that it effects coral and the fish or other sea animals that inside and among it. The way it Effects the coral is by coral bleaching. When water temp. gets above about 70 to 75 degrees the coral goes into "survival mode". The zooxanthellea that live inside the coral produce toxins, therefore the coral must kick its mian source of food out of its boy starving istelf to death.

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Q: How often does El Nino occur and what does it affect?
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Related questions

Can el nino reach the mediteraian?

El Nino can reach the Mediterranean. In the Mediterranean El Nino often causes winters that are wetter, and milder.


How does el nino affect hurricans?

El Nino (the warm phase) produces favorable hurricane conditions.


What city do el nino occur in?

El Nino is a coupled ocean-atmosphere oscillation. It has effects on most cities in the world.


How does El Nino affect industries in Mozambique?

El Nino affects industries in mozambique because of the weather changes.


How do scientists tell when an el nino will occur?

Scientists can tell when an El Nino will occur if in the tropical Pacific Ocean, a network of buoys will indicate a change in temperature, currents and winds in the equatorial band. These collected data are evaluated by a computer designed to predict El Nino.


How does EL Nino affect the farming economy?

yes


Does the gulf stream affect northern Europe because of el nino?

El Nino is unrelated to the gulf stream's influence on Europe.


How will el nino affect us in the future?

El-nino will affect us by causing destruction to crops and livestock. It may also cause flooding and destruction of other properties.


What human activities affect the el nino phenomenon?

No


How would El Nino affect the water cycle?

Well El nino affects the water cycle. like a lot. like a lot a lot. :)


El Nino seems to occur on a cycle lasting?

3-7 yrs


How does El Nino affect the ecosystem?

El Nino can be the cause of fish and other marine life leaving their home due to the lack of water in the affected area. El Nino also causes dramatic temperature fluctuations in the water.