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 1 0.500 0.000 0.001 0.000 Seawater 6.46 0.250 0.000 0.003 0.000 Seawater 504.52 0.500 0.000 0.493 0.000 Sum At = 511.98 km2 - - 0.497 0.000 Primary symptoms level of expression value for the estuary: 0.25 Low

  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 1 0.250 0.250 0 0.000 0.000 0 Seawater 6.46 0.250 0.250 1.000 0.003 0.003 0.013 Seawater 504.52 0.250 0.250 1.000 0.246 0.246 0.985 Sum At = 511.98 km2 - - - 0.250 0.250 0.998 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 0.497 0.25 Low Moderate High Macroalgal growth 0.000 SSM Dissolved oxygen 0.250 1.00 High Nuisance algal blooms 0.250 Toxic algal blooms 0.998