Table 2.

Species parameters estimated from the monoculture experiments

Parameter	Description	Monoraphidium	Microcystis	Scenedesmus	Chlorella	Units
µmax	Maximum specific growth ratea	1.27 ± 0.05	1.04 ± 0.02	1.39 ± 0.05	1.28 ± 0.03	d–1
k	Specific light attenuation coefficienta	6 × 10–5±0.7 × 10–6	8 × 10–5±1.0 × 10–6	6 × 10–5±1.0 × 10–6	6 × 10–5±1.0 × 10–6	m2 mm–3
H	Half-saturation constant for lightb	50	11	30	48	µmol photons m–2 s–1
H CO2	Half-saturation constant for CO2b	12.5	1.0	2.0	2.5	µmol l–1
H HCO3	Half-saturation constant for HCO3–b	80	20	30	40	µmol l–1
r max	Maximum respiration rateb	2.2	0.9	2.2	2.2	µmol mm–3 d–1
u max,CO2	Maximum uptake rate of CO2b	17.1	20.1	14.7	22.5	µmol mm–3 d–1
u max,HCO3	Maximum uptake rate of HCO3–b	14.0	10.8	14.7	15.7	µmol mm–3 d–1
Q min	Minimum cellular carbon contenta	14.0 ± 1.1	9.0 ± 2.7	12.5 ± 1.0	11.5 ± 0.8	µmol mm –3
Q max	Maximum cellular carbon contentb	24.5	29.9	21.1	29.9	µmol mm –3
c N	Cellular N:C ratioa	0.114 ± 0.002	0.130 ± 0.003	0.125 ± 0.003	0.100 ± 0.002	Molar ratio
c P	Cellular P:C ratiob	7.1 × 10–3	8.1 × 10–3	7.8 × 10–3	6.3 × 10–3	Molar ratio
c S	Cellular S:C ratioa	3.8 × 10–3±0.2 × 10–3	7.5 × 10–3±0.3 × 10–3	6.0 × 10–3±0.3 × 10–3	8.2 × 10–3±0.3 × 10–3	Molar ratio

^aParameter values measured experimentally, given as mean±standard error.

^bParameter values estimated by fitting the model predictions to time courses of the experiments.