Which consequence results when nearshore upwelling declines due to El Niño?

💡 Explanation

When El Niño suppresses upwelling, there's reduced delivery of nutrient-rich deep water to the surface, which causes nutrient depletion that limits phytoplankton growth. Algal blooms don't occur because of limited nutrients, therefore decreased populations occur rather than increases in sea-life.

• Which outcome promotes stack collapse during storm surges?
• Which outcome results from river channel avulsion promoting oxbow formation?
• Which outcome occurs when deep soil bioturbation decreases?
• Which outcome occurs after widespread ashfall on volcanic soils?
• Which effect explains jet stream deflection around elevated terrain like the Himalayas?
• Which topographic effect does accelerated solifluction primarily generate on moderate slopes?