Which risk increases when coastal upwelling declines within an ocean gyre?

💡 Explanation

A decline in upwelling within an ocean gyre reduces nutrient supply, and thus reduces phytoplankton blooms, because nutrient transport is cut-off via the mechanism of nutrient limitation in the mixing layer; therefore reduced blooms, rather than deep-sea impacts, are the direct consequence.

• Which outcome occurs when a river's meander erodes the neck, bypassing flow?
• Which process causes a ventifact's abrasion rate to increase on salt flats?
• Which process sharply increases stress concentration within coastal sea stacks?
• Which outcome occurs when rapid snowmelt saturates upland streams?
• Which risk increases along continental transform plate boundaries due to elastic strain?
• Which volcanic outcome increases when basalt viscosity rises?