Remineralisation
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In biogeochemistry, remineralisation refers to the breakdown or transformation of organic matter into its simplest inorganic forms. These transformations form a crucial link within ecosystems as they
Food web showing the flow of carbon in the open ocean
Biological pump
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The biological pump is the ocean's biologically driven sequestration of carbon from the atmosphere and land runoff to the ocean interior and seafloor sediments. In other words, it is a biologically me
Remineralisation
…community making up 90% of marine biomass, it is particles smaller than the microbes (on the order of 10−6) that will be taken up for remineralisation. Biological pump Decomposition…
Pump processes vary with depthPhotic zone: 0–100 m; Mesopelagic: 100–1000 m; Bathypelagic: 1000 to abyssal depths. Below 1000 m depth carbon is considered removed from the atmosphere for at least 100 years. Scavenging: DOC incorporation within sinking particles.
Particulate inorganic carbon budget for Hudson Bay Black arrows represent DIC produced by PIC dissolution. Grey lines represent terrestrial PIC. Units are Tg C y−1
The coccolithophore Emiliania huxleyi (µm = thousandth of one mm)