Ecophysiological influence of light and mixing onAnabaena circinalis(Nostocales, Cyanobacteria)

The physiology (growth rate, biochemical composition and flotation rate) of the toxic cyanobacterium Anabaena circinalis was studied in relation to irradiance and mixing regime in two small-scale (250 ml or 1 l) batch culture experiments and one medium scale (1 m high, 4.4 l), semi-continuous microcosm experiment. In batch cultures, A. circinalis had a relatively high irradiance requirement as indicated by its compensation irradiance, E c (13 ±...