Nutrient Upwelling in Antarctic Waters Sustains the Colossal Squid Food Web

Powerful Antarctic upwelling systems fertilize the ocean layers that ultimately feed colossal squid.

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The Southern Ocean plays a major role in global carbon cycling through its nutrient-driven productivity.

Wind-driven circulation and deep-water upwelling bring nutrient-rich waters to the surface, stimulating plankton blooms that form the base of the Southern Ocean food chain.

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These blooms support krill populations, which in turn sustain fish species preyed upon by Mesonychoteuthis hamiltoni, linking surface productivity to deep-sea predators.

Disruptions to upwelling patterns could cascade through the ecosystem, potentially altering prey availability for Antarctic giants.

Source

Nature Geoscience

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