Which effect diminishes effectiveness if marine protected areas are declared within strong oceanic gyres?

💡 Explanation

When marine protected areas are within strong gyres, the strong circular currents cause increased mixing and reduced larval retention because the larval dispersal is far greater than contained within the protected zone. Therefore the larval dispersal distances increase beyond MPA boundaries, rather than increased upwelling, decreased temperature change, or increase predator introduction due to transport patterns involved in gyre dynamics.

• Which mechanism primarily causes an oxbow lake to eventually become a swamp?
• Which risk increases on steep, saturated Arctic slopes undergoing seasonal thaw and solifluction?
• Which mechanism causes density-driven ocean circulation when surface water salinity increases substantially at high latitudes?
• Which consequence results when excessive groundwater extraction destabilizes karst topography?
• Which outcome occurs when increased atmospheric carbon dioxide concentrations enhance limestone dissolution?
• Which outcome occurs when glaciers retreat in semi-arid regions?