contrafions during summer and autumn were somewhat
lower compared to winter and spring, but
were not significantly different.
The BACI statistical analysis failed to find a significant
impact on NH4 concentrations due to the
diversion (Fig. 1). Ammonium levels initially increased
with distance from the diversion structure,
then stabilized further into the estuary, and rose
again presumably in response to freshwater water
input at the Bohemia structure and spillway (Fig.
3). The salinity mixing diagram (Fig. 4) indicated
the estuary was acting as a source for NH4. Winter