Table 1.

Growth rates of Microcystis aeruginosa strains

Cultured Microcystis aeruginosa UTCC strain(s)aLight intensity (mean ± SD) (n = 3)b
Low (20 μmol·m−2·s−1)High (80 μmol·m−2·s−1)
ODCDODCD
3000.045 ± 0.0050.372 ± 0.0190.074 ± 0.0040.376 ± 0.015
6320.041 ± 0.0090.374 ± 0.0100.052 ± 0.0020.331 ± 0.008
6330.030 ± 0.0030.392 ± 0.0040.040 ± 0.0020.225 ± 0.013
300 + 6320.053 ± 0.0050.328 ± 0.0060.065 ± 0.0030.306 ± 0.004
300 + 6330.053 ± 0.0040.329 ± 0.0030.055 ± 0.0020.259 ± 0.004
  • a Strain UTCC 300 is a microcystin producer; strains UTCC 632 and UTCC 633 do not produce microcystins.

  • b Results represent growth rates (day−1) of Microcystis aeruginosa strains grown individually and in mixed batch cultures as calculated by changes in optical density (OD) or total cell density (CD).