Figure 1

Food webs under varying diatom abundances, resulting from different Si:N during artificial upwelling. (a–f) Key trophic groups of the classical food web model. (g,h) Nutritional value of particulate organic matter (POM) as potential zooplankton food. (i,j) Alternative, non-diatom food options for zooplankton. Shown are temporal developments and averages employed in regressions (Table S1), with time intervals specified in grey and 95% confidence ranges via dashed lines. Plot (a) reproduced from Goldenberg et al.¹⁹.