Figure 3.

Carbon to nitrogen (C:N) stoichiometry relationships with log resource N concentrations (µg L⁻¹); (A) and microcystin cell quota (fg cell⁻¹); (B) and total microcystin-LR (µg L⁻¹); (C). C:phosphorus (P) stoichiometry relationships with log resource P concentrations (µg L⁻¹); (D) and microcystin-LR cell quota (fg cell⁻¹); (E) and total microcystin-LR (µg L⁻¹); (F). Regressions performed using all data and color coded by P concentration (20 µg L⁻¹ P, orange circle; 40 µg L⁻¹ P, green triangle; 80 µg L⁻¹ P, blue square; 175 µg L⁻¹ P, cyan diamond; 350 µg L⁻¹ P, black triangle; and 700 µg L⁻¹ P, grey hexagon).