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 123.5 1.000 1.000 0.957 0.957 Seawater 4.5 0.000 0.000 0.000 0.000 Tidal freshwater 1 0.500 0.000 0.004 0.000 Sum At = 129 km2 - - 0.961 0.957 Primary symptoms level of expression value for the estuary: 0.96 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 123.5 0.500 0.250 0 0.479 0.239 0 Seawater 4.5 0.250 0.000 0.000 0.009 0.000 0.000 Tidal freshwater 1 1.000 0.000 1.000 0.008 0.000 0.008 Sum At = 129 km2 - - - 0.495 0.239 0.008 Secondary symptoms level of expression value for the estuary: 0.50 Moderate

  Synthesis

Indices Methods Parameters/ Values / EAR Index category Overall Eutrophic Condition (OEC) PSM Chlorophyll a 0.961 0.96 High Moderate High Macroalgal growth 0.957 SSM Dissolved oxygen 0.495 0.50 Moderate Nuisance algal blooms 0.239 Toxic algal blooms 0.008