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 890.7 1.000 0.250 0.707 0.177 Mixing 186.6 0.500 0.250 0.074 0.037 Tidal freshwater 118.55 1.000 1.000 0.094 0.094 Tidal freshwater 64.15 1.000 0.250 0.051 0.013 Sum At = 1260 km2 - - 0.926 0.321 Primary symptoms level of expression value for the estuary: 0.62 High

  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 890.7 0.250 0.250 0.000 0.177 0.177 0.000 Mixing 186.6 0.250 0.250 0.000 0.037 0.037 0.000 Tidal freshwater 118.55 0.250 1.000 0.000 0.024 0.094 0.000 Tidal freshwater 64.15 0.250 0.000 0 0.013 0.000 0 Sum At = 1260 km2 - - - 0.250 0.308 0.000 Secondary symptoms level of expression value for the estuary: 0.31 Moderate

  Synthesis

Indices Methods Parameters/ Values / EAR Index category Overall Eutrophic Condition (OEC) PSM Chlorophyll a 0.926 0.62 High Moderate High Macroalgal growth 0.321 SSM Dissolved oxygen 0.250 0.31 Moderate Nuisance algal blooms 0.308 Toxic algal blooms 0.000