13 of 63 The coastal waters of Peru are normally rich in nutrients and sea life due to regular upwelling. Why does this change during El Niño?
Monsoons occur more frequently during El Niño, changing the water composition of the area.
Regional currents, which normally bring polar waters northward, stop during El Niño.
Hurricanes occur more frequently during El Niño, disrupting normal migration routes in the area.
Regional trade winds change in strength and direction during El Niño.
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