Figure 9. Dissolved inorganic nutrients measured in surface waters (0-10 m depth) from the North Sea Ecosystem cruise (14 – 26 April 2022). a) Phosphate plotted as a function of dissolved, combined nitrogen (DIN= NO2+NO3), and b) surface distribution of the Redfield N:P relationship being 16 the ratio value assumed necessary for a balanced cellular synthesis and growth in phytoplankton.
