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Southern Ocean's Diatoms: Key to Carbon Cycling Revealed

8/11/2025

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Summary

Story summary

Bright patches in the Southern Ocean near Antarctica have been traced back to silica-rich diatoms and calcium carbonate coccolithophores, revealing their crucial role in polar ecosystems and carbon cycling. This breakthrough underscores the Southern Ocean's significance as a major carbon sink, while emphasizing the need for enhanced satellite algorithms to predict plankton composition more accurately.

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Story summary

Bright patches in the Southern Ocean near Antarctica have been traced back to silica-rich diatoms and calcium carbonate coccolithophores, revealing their crucial role in polar ecosystems and carbon cycling. This breakthrough underscores the Southern Ocean's significance as a major carbon sink, while emphasizing the need for enhanced satellite algorithms to predict plankton composition more accurately.