How Does El Niño Affect The Peruvian Fishing Industry?

What impact does El Niño have on the fishing industry?

An El Niño reduces the upwelling of cold water off the coast of the Americas. When this happens, fish either die or migrate into areas where they’ll find more to eat. With the fish gone, sea birds that depend on them may die or go elsewhere. Kelp forests are often destroyed by storms and ocean swells.

What effect does El Niño have on Peru?

After a period of severe drought, per recent news reports the “El Niño” effect is bringing heavy rainfall on Peru ´s Northern coast causing overflowing of rivers, mudslides and flooding.

Why are Peruvian coastal waters warmer during El Niño?

ENSO is a disruption of the ocean-atmosphere system in the tropical Pacific such that coastal upwelling off the Peruvian coast decreases or stops. This results in a warming of the surface water off Peru that can spread across the Pacific ocean.

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How do you think an El Niño event impacts the fishing industry on the west coast of South America?

When this warm water builds up in the western Pacific-Ocean, nutrient-rich cold waters are forced to rise up from the deeper ocean just off of the west coast of South America. This colder nutrient-rich water fosters the growth of the fish population. During an El Niño event the trade winds weaken.

What is the effect of El Niño?

El Niño conditions can cause a wide range of health problems, including disease outbreaks, malnutrition, heat stress, and respiratory diseases. The risk of communicable diseases increases when there is limited access to food, water, and sanitation.

How long does El Niño last?

El Niño and La Niña episodes typically last 9-12 months. They both tend to develop during the spring (March-June), reach peak intensity during the late autumn or winter (November-February), and then weaken during the spring or early summer (March-June).

What are two climatic effects of El Niño on Peru?

El Niño also produces widespread and sometimes severe changes in the climate. Convection above warmer surface waters bring increased precipitation. Rainfall increases drastically in Ecuador and northern Peru, contributing to coastal flooding and erosion.

Is La Nina good for fishing?

La Niña usually has a positive impact on the fishing industry of western South America. Upwelling brings cold, nutrient-rich waters to the surface. Nutrients include plankton eaten by fish and crustaceans. Higher-level predators, including high-value fish species such as sea bass, prey on the crustaceans.

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Does El Niño cause drought?

One such phenomenon is the periodic occurrence of El Niño. During El Niño episodes the normal patterns of tropical precipitation and atmospheric circulation are disrupted, hence triggering extreme climate events around the globe: droughts, floods and affecting the intensity and frequency of hurricanes.

What causes El Niño?

An El Niño condition occurs when surface water in the equatorial Pacific becomes warmer than average and east winds blow weaker than normal. During this phase of ENSO, the water is cooler than normal and the east winds are stronger. El Niños typically occur every 3 to 5 years.

Is El Niño good for fishing in Peru?

The El Niño affects traditional fisheries in Peru and Ecuador. However, when this upwelling of water weakens as in El Niño affected years, warmer, low nutrient rich water spreads along the coast, and the catch is severely affected.

Why does El Niño happen?

El Niño happens when tropical Pacific Ocean trade winds die out and ocean temperatures become unusually warm. The year-to-year oscillations between normal, warm, and cold conditions in the tropical Pacific associated with the ENSO cycle involve massive redistributions of upper ocean heat.

Is fishing worse during El Niño or La Niña?

During periods of an El Nino weather pattern, the growth rates would slow, while growth would increase during La Nina. During times of extreme temperature change, like those expected for the 2016 La Nina forecast, the extreme temperatures can lead to coral bleaching and more widespread fish kills.

Where does it get wetter during an El Niño?

But in the U.S. Gulf Coast and Southeast, these periods are wetter than usual and have increased flooding. El Niño causes the Pacific jet stream to move south and spread further east. During winter, this leads to wetter conditions than usual in the Southern U.S. and warmer and drier conditions in the North.

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What is the difference between El Niño and La Niña?

El Niño events are associated with a warming of the central and eastern tropical Pacific, while La Niña events are the reverse, with a sustained cooling of these same areas. These changes in the Pacific Ocean and its overlying atmosphere occur in a cycle known as the El Niño–Southern Oscillation (ENSO).

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