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 42.4 0.500 0.051 Seawater 372.3 0.250 0.224 Tidal freshwater 1.2 0.250 0.001 Sum At = 415.9 km2 - 0.275 Primary symptoms level of expression value for the estuary: 0.28 Low

  Secondary symptoms

Zone Area(km2) (Az) Value(Vij) Az/At x Vij Dissolved oxygen Nuisance algal blooms SAV Spatial coverage Toxic algal blooms Dissolved oxygen Nuisance algal blooms SAV Spatial coverage Toxic algal blooms Mixing 42.4 0.250 0.250 0.000 0.000 0.025 0.025 0.000 0.000 Seawater 372.3 0.250 0.250 0.500 0.000 0.224 0.224 0.448 0.000 Tidal freshwater 1.2 1.000 0.250 0.000 0.000 0.003 0.001 0.000 0.000 Sum At = 415.9 km2 - - - - 0.252 0.250 0.448 0.000 Secondary symptoms level of expression value for the estuary: 0.45 Moderate

  Synthesis

Indices Methods Parameters/ Values / EAR Index category Overall Eutrophic Condition (OEC) PSM Chlorophyll a 0.275 0.28 Low Moderate Low SSM Dissolved oxygen 0.252 0.45 Moderate Nuisance algal blooms 0.250 SAV Spatial coverage 0.448 Toxic algal blooms 0.000