Which ecological shift occurs when increased stratification impedes vertical mixing within an ocean gyre?

💡 Explanation

When increased stratification occurs, reduced vertical mixing prevents nutrient replenishment from deeper layers to the photic zone because density differences inhibit upwelling. Therefore primary productivity decreases due to nutrient limitation, rather than enhanced availability, increased biodiversity, or macroalgae growth which all rely on consistent nutrient supply.

• Which consequence results when tephra deposition buries forests?
• Which outcome is worsened by thermocline breakdown during upwelling?
• Which outcome results when soil experiences intensive laterization pedogenesis?
• Which prevailing wind effect results from the interaction of subtropical high-pressure zones and Earth's rotation?
• Which outcome reduces forest carbon sequestration when pedogenesis declines?
• Which soil horizon benefits from increased nutrient turnover when intense bioturbation occurs?