Which effect influences Sargassum seaweed accumulation in North Atlantic gyres?

💡 Explanation

When winds interact with surface waters, Ekman transport causes surface currents to converge toward the center of the gyre because the Coriolis effect deflects the currents. Therefore, Sargassum accumulates due to convergence, rather than upwelling, thermocline depth, or coastal erosion which involve different nutrient and sediment transport mechanisms.

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