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 15000 0.500 0.147 Seawater 36000 0.500 0.353 Sum At = 51000 km2 - 0.500 Primary symptoms level of expression value for the estuary: 0.50 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 15000 0.250 1.000 1.000 0.074 0.294 0.294 Seawater 36000 0.250 1.000 1.000 0.176 0.706 0.706 Sum At = 51000 km2 - - - 0.250 1.000 1.000 Secondary symptoms level of expression value for the estuary: 1.00 High

  Synthesis

Indices Methods Parameters/ Values / EAR Index category Overall Eutrophic Condition (OEC) PSM Chlorophyll a 0.500 0.50 Moderate High SSM Dissolved oxygen 0.250 1.00 High Nuisance algal blooms 1.000 Toxic algal blooms 1.000