Which phenomenon causes increased anchovy productivity when coastal upwelling occurs off Peru's west coast?

💡 Explanation

When coastal upwelling occurs, the mechanism involves deep, cold water rising because wind displacement near the surface allows the nutrient-rich waters to be transported upward, triggering primary production, like phytoplankton, at the bottom of the food chain. Therefore, nutrient transfer results, rather than insolation, salinity or oxygen changes needing other geophysical mechanisms.

• Which mechanism causes increased liquefaction risk during seismic shaking of unconsolidated coastal sediments?
• Which outcome results from intensive 'deflation' processes in desert environments?
• Which effect most immediately reduces primary productivity during El Niño events where upwelling of the Humboldt Current weakens?
• Which phenomenon causes significantly cooler surface water temperatures during coastal upwelling events?
• Which condition accelerates karst landscape development by leaching?
• Which process prevents thermal overturn in deep meromictic lakes during winter months?