Which ecological consequence results when a persistent high-pressure system reduces coastal upwelling along the California coast?

💡 Explanation

When a high-pressure system persists, it weakens offshore winds needed for upwelling because Ekman transport decreases, leading to reduced vertical nutrient transport and lower phytoplankton productivity. Therefore local fish populations decline, rather than increased nutrients, kelp expansion, or carbon sequestration due to trophic cascade effects.

• Which risk increases when constructing a multi-story building foundation on unconsolidated alluvial soil near seismic fault lines?
• Which risk escalates when a large earthquake impacts a coastal region featuring significant unconsolidated sediment deposits?
• Which mechanism intensifies meandering of jet streams within upper troposphere?
• Which risk increases when a road embankment is constructed on discontinuous permafrost terrain?
• Which outcome occurs when freeze-thaw cycles induce solifluction on steep Arctic slopes?
• Which outcome occurs when permafrost thaws beneath a sloped glacial moraine?