Fig. 1. Changes over time in the batch-culture experiment.

(a) cell abundance (cells mL⁻¹), (b) growth rate (d⁻¹), (c) culture nitrate concentration (µM), (d) cell nitrogen content (pg N µm⁻³), (e) cell carbon content (pg C µm⁻³), (f) C:N ratio, (g) cell volume (µm⁻³), (h) cell toxin content (amol µm⁻³), and (i) the fraction of cells rejected by copepods. The light-grey points in (d), (e), (f), and (h) are initial values from the stock culture. Values are means and error bars are standard error (n = 3).