Bulk organic Sediment SOD Concentration matter oxygen of O2 demand consumed by quality/chemical organic oxygen (mmol O2 constituents of demand g-1 d-1) surface sediment samples (of known volume) incubated in the dark in seawater in Biological Oxygen Demand (BOD) bottles. Bulk organic Total TSM Amount of matter quality sediment dissolved metabolism inorganic carbon (DIC) (mmol g-1 produced by d-1) mineralisation of OM over ~24 hours in containers filled to completion with sediment and incubated in the dark. Bulk organic Total benthic Concentration matter oxygen of O2 TOU flux uptake consumed by quality/input surface rate of OM to (mmol m-2 sediment seabed d-1) cores incubated in the dark as an indicator of benthic carbon mineralisation (Glud 2008). Bulk organic Total benthic Concentration matter carbon of CO2 TCO2 flux quality/input dioxide produced by rate of OM to release the seabed breakdown of (mmol m-2 organic matter d-1) in surface sediment cores incubated in the dark.
Sediment oxygen demand (mmol O2 g-1 d-1) SOD Concentration of O2 consumed by organic constituents of surface sediment samples (of known volume) incubated in the dark in seawater in Biological Oxygen Demand (BOD) bottles. Bulk organic matter quality/chemical oxygen demand Total sediment metabolism (mmol g-1 d-1) TSM Amount of dissolved inorganic carbon (DIC) produced by mineralisation of OM over ~24 hours in containers filled to completion with sediment and incubated in the dark. Bulk organic matter quality Total oxygen uptake (mmol m-2 d-1) benthic TOU flux Concentration of O2 consumed by surface sediment cores incubated in the dark as an indicator of benthic carbon mineralisation (Glud 2008). Bulk organic matter quality/input rate of OM to seabed Total carbon dioxide release (mmol m-2 d-1) benthic TCO2 flux Concentration of CO2 produced by the breakdown of organic matter in surface sediment cores incubated in the dark. Bulk organic matter quality/input rate of OM to seabed