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 primarily occurs when coastline geometry impedes a wind-driven oceanic gyre's rotation?
• Which risk escalates on steep slopes in Arctic regions undergoing active solifluction?
• Which outcome results when soil experiences intensive laterization pedogenesis?
• Which outcome results near shield volcanoes with pahoehoe flows?
• Which outcome results from increased dissolved CO2 precipitation permeating karst?
• Which mechanism forms widening cave passages near the water table?