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 4.7 0.000 0.500 0.000 0.022 Seawater 28.06 1.000 0.500 0.262 0.131 Seawater 73.37 1.000 0.500 0.686 0.343 Tidal freshwater 0.9 0.250 0.500 0.002 0.004 Sum At = 107.03 km2 - - 0.950 0.500 Primary symptoms level of expression value for the estuary: 0.72 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 4.7 0.000 0.000 0.000 0.000 0.000 0.000 Seawater 28.06 0.000 0.000 1.000 0.000 0.000 0.262 Seawater 73.37 0.000 0.000 1.000 0.000 0.000 0.686 Tidal freshwater 0.9 0.250 0.000 0.000 0.002 0.000 0.000 Sum At = 107.03 km2 - - - 0.002 0.000 0.948 Secondary symptoms level of expression value for the estuary: 0.95 High

  Synthesis

Indices Methods Parameters/ Values / EAR Index category Overall Eutrophic Condition (OEC) PSM Chlorophyll a 0.950 0.72 High High Macroalgal growth 0.500 SSM Dissolved oxygen 0.002 0.95 High Nuisance algal blooms 0.000 Toxic algal blooms 0.948