Fig. 3: Food web carbon flows.

Overview of the carbon flows between main (partially aggregated) components of the three food webs represented in percent (%) of the phytoplankton production (net primary production of 250 mmol C m⁻² d^-1 indicated by 100 (%)) (A–C). For intercomparison of food webs, similar flows between food webs were coloured green (uptake of phytoplankton by macrofauna), blue (uptake of zooplankton by macrofauna), orange (uptake of watPOM by macrofauna), purple (uptake of sedOM by macrofauna), and brown (organic matter deposition on sediment). The small open ended arrows on compartments represent flows of DIC (respiration) and export. Circular boxes represent watPOM and sedOM, rectangular boxes are (aggregated) consumers, and burial is represented by trapezoid boxes.