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 1636.609 1.000 1.000 0.871 0.871 Tidal freshwater 2.47 0.250 0.000 0.000 0.000 Tidal freshwater 237.44 0.000 0.000 0.000 0.000 Tidal freshwater 2.47 0.250 0.000 0.000 0.000 Sum At = 1878.989 km2 - - 0.872 0.871 Primary symptoms level of expression value for the estuary: 0.87 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 1636.609 0.250 1.000 0.250 0.218 0.871 0.218 Tidal freshwater 2.47 1.000 0.000 0.000 0.001 0.000 0.000 Tidal freshwater 237.44 0.250 0.000 0.000 0.032 0.000 0.000 Tidal freshwater 2.47 0.000 0.000 0.000 0.000 0.000 0.000 Sum At = 1878.989 km2 - - - 0.251 0.871 0.218 Secondary symptoms level of expression value for the estuary: 0.87 High

  Synthesis

Indices Methods Parameters/ Values / EAR Index category Overall Eutrophic Condition (OEC) PSM Chlorophyll a 0.872 0.87 High High Macroalgal growth 0.871 SSM Dissolved oxygen 0.251 0.87 High Nuisance algal blooms 0.871 Toxic algal blooms 0.218