Fig. 2From: High dietary quality of non-toxic cyanobacteria for a benthic grazer and its implications for the control of cyanobacterial biofilmsMolar C:N:P ratios of the primary producers and of L. stagnalis. C:N:P ratios of single primary producer species or of the mixed diet (a, c, e, mean + 1 SE; N = 5) and of L. stagnalis feeding upon the single and mixed diets (b, d, f, mean + 1 SE; N = 1–6). Means which were found to be significantly different in Tukey post hoc comparisons are labelled with different letters Back to article page