Results
Among the measured parameters variation between sites
across lakes was low and the coefficient of variation
(CV) ranged from 0.05-0.2 for almost all the sampling
events. Maximum variation occurred for a single sampling
event in March 2000 when CV was 0.6 for total reactive
phosphorus, this was due to a single large value at
one of the sites in Lake Colac. One-way ANOVA was not
able to detect significant differences between the sites for
any of the parameters (P ranged from 0.115-0.99). The
low variability validates the use of four samples taken
from each lake and results were averaged across all the
sites. Subsequent results and discussions are based on
data averaged over sites for each sampling event.