Modelling the role of highly unsaturated fatty acids in planktonic food web processes: Sensitivity analysis and examination of contemporary hypotheses

► We test a plankton model that considers biochemical limitation of grazer growth. ► Zooplankton minimum somatic quotas are critical in poor food quality conditions. ► Steady animal growth stems from balanced turnover and bioconversion rates. ► Consumer biochemical limitation and algal accumulation occur in eutrophic settings. ► Efficient nutrient allotment between growth and metabolism controls species fitness.