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 102.4 1.000 0.000 0.122 0.000 Mixing 186.36 0.500 0.000 0.111 0.000 Seawater 248.74 0.250 0.000 0.074 0.000 Seawater 155.53 1.000 0.000 0.186 0.000 Tidal freshwater 13.28 0.500 0.000 0.008 0.000 Tidal freshwater 7.27 0.500 0.000 0.004 0.000 Tidal freshwater 22.05 1.000 0.000 0.026 0.000 Tidal freshwater 41.34 0.500 0.000 0.025 0.000 Tidal freshwater 24.55 1.000 0.000 0.029 0.000 Tidal freshwater 12.53 1.000 0.000 0.015 0.000 Tidal freshwater 23.8 1.000 0.000 0.028 0.000 Sum At = 837.85 km2 - - 0.629 0.000 Primary symptoms level of expression value for the estuary: 0.31 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 102.4 0.000 0.000 0.000 0.000 0.000 0.000 Mixing 186.36 0.000 0.000 0 0.000 0.000 0 Seawater 248.74 0.000 0.250 0.000 0.000 0.074 0.000 Seawater 155.53 0.000 0.000 0.000 0.000 0.000 0.000 Tidal freshwater 13.28 0.000 1.000 0 0.000 0.016 0 Tidal freshwater 7.27 0.000 0.250 0.000 0.000 0.002 0.000 Tidal freshwater 22.05 0.000 0.000 0.000 0.000 0.000 0.000 Tidal freshwater 41.34 0.000 0.250 0.000 0.000 0.012 0.000 Tidal freshwater 24.55 0.000 0.000 0.000 0.000 0.000 0.000 Tidal freshwater 12.53 0.250 0.250 0.000 0.004 0.004 0.000 Tidal freshwater 23.8 0.000 0.000 0.000 0.000 0.000 0.000 Sum At = 837.85 km2 - - - 0.004 0.108 0.000 Secondary symptoms level of expression value for the estuary: 0.11 Low

  Synthesis

Indices Methods Parameters/ Values / EAR Index category Overall Eutrophic Condition (OEC) PSM Chlorophyll a 0.629 0.31 Moderate Moderate Low Macroalgal growth 0.000 SSM Dissolved oxygen 0.004 0.11 Low Nuisance algal blooms 0.108 Toxic algal blooms 0.000