Which outcome results when El Niño-Southern Oscillation suppresses coastal upwelling in the eastern Pacific Ocean?

💡 Explanation

When El Niño suppresses upwelling, the nutricline deepens because the normal ascent of nutrient-rich water is reduced, decreasing nutrient availability in surface waters, leading to reduced phytoplankton and decline in fish stocks. Therefore a decline in fish results, rather than increased productivity, carbon sequestration, or stronger winds which require opposite conditions.

• Which outcome results from the Coriolis effect on large-scale ocean currents moving away from the equator?
• Which process increases when isostatic depression ceases unloading glacial fjords?
• Which process rapidly alters river delta morphology when coarse alluvial sediment deposition reduces flow capacity?
• Which process primarily causes cirque formation beneath a glacier terminus?
• Which mechanism causes stream meandering in lowland river systems when cohesive sediment banks are present?
• Which mechanism causes long-term cyclic uplift and subsidence along a strike-slip fault zone?