Sediment traps are instruments used in oceanography and limnology to measure the quantity of sinking particulate organic material in aquatic systems, usually oceans, lakes, or reservoirs. This flux of
Model of a sediment trap: It mainly consists of a huge funnel, a ring of Glass floats (3 are visible) and a revolving wheel with sample bottles.
Sediment trap deployment in Thermaikos Gulf, Greece, 2000. The sediment trap has H/D 5.5, internal diameter 127 mm, and a net at the top. The sediment trap had been cast at 25-30 m depth and 3 m above seabed. The anchor (chain) of the mooring can also be seen.
Aerial view of Slapton Sands and northern part of Ley geograph.org.uk 1434412
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
The pelagic food web, showing the central involvement of marine microorganisms in how the ocean imports carbon and then exports it back to the atmosphere and ocean floor
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)