#sediment-traps

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A yellow-funnel sediment trap on a deep-ocean mooring hangs in dark blue water, its carousel of sampling bottles catching faint white specks of falling marine snow in soft light shafts.

Sediment Traps: Catching Carbon on Its Way Down

How do we measure carbon sinking through ocean? Sediment traps — moored funnels hundreds of metres deep — catch marine snow and tally the export flux.

Dr. Lena Fischer · September 26, 2026

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