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 Seawater 747.34 0.500 0.500 0.431 0.431 Seawater 27.77 0.500 0.250 0.016 0.008 Seawater 90.89 0.500 0.500 0.052 0.052 Sum At = 866 km2 - - 0.500 0.492 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 Seawater 747.34 0.250 0.250 0.250 0.216 0.216 0.216 Seawater 27.77 0.500 1.000 1.000 0.016 0.032 0.032 Seawater 90.89 1.000 0.250 0.250 0.105 0.026 0.026 Sum At = 866 km2 - - - 0.337 0.274 0.274 Secondary symptoms level of expression value for the estuary: 0.34 Moderate

  Synthesis

Indices Methods Parameters/ Values / EAR Index category Overall Eutrophic Condition (OEC) PSM Chlorophyll a 0.500 0.50 Moderate Moderate Macroalgal growth 0.492 SSM Dissolved oxygen 0.337 0.34 Moderate Nuisance algal blooms 0.274 Toxic algal blooms 0.274