Overall level of expression of Eutrophic condition

1             High primary symptoms           0,6             Moderate primary symptoms           0,3             Low primary symptoms           0   0,3   0,6   1     Low secondary symptoms   Moderate secondary symptoms   High secondary symptoms

  Primary symptoms 

Zone Area(km2) (Az) Value(Vij) Az/At x Vij Chlorophyll a Macroalgal growth Chlorophyll a Macroalgal growth Mixing 1897.7 0.250 0.250 0.190 0.190 Tidal freshwater 124.53 1.000 0.000 0.050 0.000 Tidal freshwater 474.75 0.250 0.000 0.048 0.000 Sum At = 2496.98 km2 - - 0.287 0.190 Primary symptoms level of expression value for the estuary: 0.24 Low

  Secondary symptoms

Zone Area(km2) (Az) Value(Vij) Az/At x Vij Dissolved oxygen Nuisance algal blooms Toxic algal blooms Dissolved oxygen Nuisance algal blooms Toxic algal blooms Mixing 1897.7 0.250 0 0 0.190 0 0 Tidal freshwater 124.53 0.250 0.500 0.250 0.012 0.025 0.012 Tidal freshwater 474.75 0.250 0.000 0.000 0.048 0.000 0.000 Sum At = 2496.98 km2 - - - 0.250 0.025 0.012 Secondary symptoms level of expression value for the estuary: 0.25 Low

  Synthesis

Indices Methods Parameters/ Values / EAR Index category Overall Eutrophic Condition (OEC) PSM Chlorophyll a 0.287 0.24 Low Low Macroalgal growth 0.190 SSM Dissolved oxygen 0.250 0.25 Low Nuisance algal blooms 0.025 Toxic algal blooms 0.012