ASSETS

  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 134.8 1.000 0.500 0.535 0.267
Seawater 117.2 0.250 0.250 0.116 0.116
Sum At = 252 km2 - - 0.651 0.384
Primary symptoms level of expression value for the estuary: 0.52 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 134.8 0.500 0.250 0.250 0.267 0.134 0.134
Seawater 117.2 0.250 0.250 0.250 0.116 0.116 0.116
Sum At = 252 km2 - - - 0.384 0.250 0.250
Secondary symptoms level of expression value for the estuary: 0.38 Moderate

 

  Synthesis

 

Indices Methods Parameters/ Values / EAR Index category
Overall
Eutrophic
Condition
(OEC)
PSM Chlorophyll a 0.651 0.52
Moderate
Moderate
Macroalgal growth 0.384
SSM Dissolved oxygen 0.384 0.38
Moderate
Nuisance algal blooms 0.250
Toxic algal blooms 0.250

 
            Page : 19