Which ecological shift results when upwelling cessation leads to nutrient depletion in surface waters?

💡 Explanation

When upwelling stops, nutrient supply declines because the transport of nutrient-rich deep water to the surface ceases, inhibiting photosynthesis. Therefore, primary productivity decreases substantially, rather than algal blooms thriving, seabed decomposition accelerating, or invertebrate populations booming, all of which require sustained nutrient sources.

• Which geological consequence results when accumulated stress overcomes frictional resistance along a fault-line?
• Which atmospheric phenomenon is intensified by extensive tephra emission?
• Which outcome sharply reduces coastal krill populations when westward trade winds in the Pacific stall?
• Which atmospheric outcome significantly reduces convective precipitation when persistent high pressure systems induce the subsidence effect?
• Which phenomenon results when upper-level divergence aloft exceeds surface convergence in an idealized Hadley cell?
• Which geological feature develops when regional extension causes a series of parallel normal faults?