Which consequence results when coastal upwelling ceases near a major fishing ground?

💡 Explanation

When coastal upwelling ceases, the nutrient transport mechanism from deep water to the surface layer is interrupted because wind-driven currents weaken, leading to a reduction in available nutrients for phytoplankton growth. Therefore, nutrient supply depletion to phytoplankton results, rather than thermocline changes, increased oxygen, or greater carbon sequestration, which depend on active upwelling.

• Which risk increases near subduction zones following a major shallow-focus earthquake?
• Which mechanism deflects air masses to the right in the northern hemisphere?
• Which effect causes increased coastal erosion when vegetation is removed by storms or development?
• Which risk increases following alluvial terrace abandonment near a waterway?
• Which outcome occurs when increased glacial melting causes large-scale freshwater discharge into subpolar ocean currents?
• Which global precipitation effect is caused by the intertropical convergence zone (ITCZ)?