Which coastal ecosystem consequence results from El Niño?

💡 Explanation

Reduced trade winds during El Niño cause weakened upwelling, therefore diminished nutrient supply to surface waters. This suppresses phytoplankton growth because nutrient transport decreases, rather than increased erosion or deep-water ventilation, which are separate processes not driven solely by upwelling.

• Which process primarily causes increased sea stack formation on headlands?
• Which landform develops when solifluction lobes advance over previously deposited sediments?
• Which effect does the Coriolis force primarily have on large-scale atmospheric convection cells?
• Which process dominates within a high-altitude cirque basin experiencing repeated freeze-thaw cycles?
• Which outcome occurs when ephemeral desert stream discharge ceases during peak evaporation?
• Which mechanism primarily deflects geostrophic currents into coastal boundary currents along continental margins?