Fig. 1.

Growth rate V (h⁻¹) of F. johnsoniae strain A3 at 15°C in relation to the concentration ΔS of laminarin (A) and maltose (B) added to pasteurized tap water with an apparent indigenous substrate concentration S_b of 0.2 (± 0.00) μg biopolymer C equivalents liter⁻¹. Data modeled according to Monod kinetics (solid line) and Teissier kinetics (dashed line). Error bars represent standard deviation of V in duplicate flasks. In panel B, error bars are not visible because the standard deviation was ≤0.005 h⁻¹ for all V values determined.