Enhanced transfer of organic matter to higher trophic levels caused by ocean acidification and its implications for export production: A mass balance approach
Fig 6
Time course the particulate carbon to nitrogen ratio at ambient and high CO2.
Solid lines show mean values of the particulate carbon (TPC) to nitrogen (TPN) ratio in (A) the water column, (B) collected sediment trap samples, and of the suspended particle size fractions (C) larger and (D) smaller than 200 μm in the ambient (blue) and high (red) CO2 treatment. Coloured areas indicate standard deviation of replicated (n = 5) treatments. Roman numbers denote the four different phases of the experiment. Vertical dashed lines represent the Redfield ratio of carbon to nitrogen (6.6).