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 Chlorophyll a Mixing 175.3 0.250 0.071 Tidal freshwater 439.7 0.500 0.357 Sum At = 615 km2 - 0.429 Primary symptoms level of expression value for the estuary: 0.43 Moderate

  Secondary symptoms

Zone Area(km2) (Az) Value(Vij) Az/At x Vij Dissolved oxygen Nuisance algal blooms SAV Spatial coverage Toxic algal blooms Dissolved oxygen Nuisance algal blooms SAV Spatial coverage Toxic algal blooms Mixing 175.3 0.000 0.000 0.250 1.000 0.000 0.000 0.071 0.285 Tidal freshwater 439.7 0.000 0.000 0.250 0.000 0.000 0.000 0.179 0.000 Sum At = 615 km2 - - - - 0.000 0.000 0.250 0.285 Secondary symptoms level of expression value for the estuary: 0.29 Low

  Synthesis

Indices Methods Parameters/ Values / EAR Index category Overall Eutrophic Condition (OEC) PSM Chlorophyll a 0.429 0.43 Moderate Moderate Low SSM Dissolved oxygen 0.000 0.29 Low Nuisance algal blooms 0.000 SAV Spatial coverage 0.250 Toxic algal blooms 0.285