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 16.22 1.000 0.000 0.015 0.000 Mixing 5.07 1.000 0.000 0.005 0.000 Mixing 12.17 1.000 0.000 0.011 0.000 Mixing 872.02 1.000 0.000 0.782 0.000 Mixing 12.17 1.000 0.000 0.011 0.000 Seawater 195.1 0.000 0.000 0.000 0.000 Tidal freshwater 2.2 1.000 0.000 0.002 0.000 Sum At = 1114.95 km2 - - 0.825 0.000 Primary symptoms level of expression value for the estuary: 0.41 Moderate

  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 16.22 0.250 0.250 0.000 0.004 0.004 0.000 Mixing 5.07 0.250 0.250 0.000 0.001 0.001 0.000 Mixing 12.17 0.250 0.250 0.000 0.003 0.003 0.000 Mixing 872.02 0.250 0.250 0.000 0.196 0.196 0.000 Mixing 12.17 0.250 0.250 0.000 0.003 0.003 0.000 Seawater 195.1 0.250 0.000 0.250 0.044 0.000 0.044 Tidal freshwater 2.2 1.000 0.000 0.000 0.002 0.000 0.000 Sum At = 1114.95 km2 - - - 0.251 0.206 0.044 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 0.825 0.41 Moderate Moderate Low Macroalgal growth 0.000 SSM Dissolved oxygen 0.251 0.25 Low Nuisance algal blooms 0.206 Toxic algal blooms 0.044