Using the findings by
Elliot et al. (2006) on cyanobacteria dominance, it is
suggested that for the present study, summer and
autumn heat-waves probably did not reach critical
thresholds beyond which a collapse of the constant
composition that would favour the dominance of
cyanobacteria over other species would be observed.
Under extreme hot seasons, compared to normal season,
median air temperature increased in autumn by 4
°C, by 2.9 °C in summer, and decreased by 5.1 °C in
winter.