Fig. 2: Time series of surface ocean macronutrient inventories and integrated daily and annual net primary production (NPP).
From: Adaptive carbon export response to warming in the Sargasso Sea

A Nitrate and B high-sensitivity phosphate nutrient inventories (0–140 m; mmol m−2), and C integrated (0–140 m) daily and annual NPP. Black lines in each panel are individual cruise values, while the red lines and open diamonds are annual values. Note, annual NPP is on a different scale (right axis).