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Gulf. The investigations in this study have focused on the area (Bolinao Bay) between the northeast mainland of Cape Bolinao, Santiago Island and Cabarruyan Island. The bay has three inlets / outlets. The two up in the northern part of the bay are connected strait out to open water. However, the southern entrance is connected to Tambac Bay which also has a lot of aquaculture activity. The Tambac Bay was also affected by fish kill episodes. The studied bay are relatively shallow and the average depth in most of the area are less than 6 meters deep.
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Environmental monitoring and modelling of aquaculture in risk areas of the PhilippinesPreliminary information from Bolinao, Pangasinan, Philippines
Hydrodynamic Modelling of currents and residence time
Bathymetry Currents Residence time
Bathymetry of Bolinao north entrance
Bolinao survey area
Data collected
Bathymetry (depth recordings) of the area
Tidal range and current speed, direction and dispersion
Physical parameters - Temperature, turbidity, salinity, oxygen, profile through the water column
Water quality – chlorophyll, phosphorous, nitrite, ammonia
Sediment analysis (biological and chemical)
Weather data wind direction, speed, temperature
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CM06
CM08
CM11
CM01
CM07
Bolinao CM01 (6 m depth)water transport (l/(s*m^2))
0
10
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300
1530
45
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75
90
105
120
135150
165180
195210
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270
285
300
315330
345
Bolinao CM06 (7 m depth)water transport (l/(s*m^2))
0
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1500
1530
45
60
75
90
105
120
135150
165180
195210
225
240
255
270
285
300
315330
345
Bolinao CM-37 (surface)water transport (l/(s*m^2))
0
5
10
15
200
1530
45
60
75
90
105
120
135150
165180
195210
225
240
255
270
285
300
315330
345
Current meter stations and measurements
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CTDO02
CTDO07CTDO06
CTDO40
2 7 . 5 2 8 2 8 . 5 2 9 2 9 . 5 3 0
T e m p e r a t u r e ( ° C )
2 0
1 6
1 2
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pth
(m
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3 0 3 1 3 2 3 3 3 4
S a l i n i t y ( P S U )
3 . 6 4 4 . 4 4 . 8
O x y g e n ( m g / l )
0 1 2 3 4 5
C h l o r o p h y l l - F ( µ g / l )
C T D O 0 2B o l i n a o 0 2 . 2 1 . 0 6 .
2 9 . 8 8 2 9 . 9 2 9 . 9 2 2 9 . 9 4 2 9 . 9 6 2 9 . 9 8
T e m p e r a t u r e ( ° C )
1 0
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0D
ep
th (
m)
3 0 3 1 3 2 3 3 3 4 3 5
S a l i n i t y ( P S U )
4 4 . 2 4 . 4 4 . 6 4 . 8 5 5 . 2
O x y g e n ( m g / l )
2 2 . 4 2 . 8 3 . 2 3 . 6 4
C h l o r o p h y l l - F ( µ g / l )
C T D O 4 0B o l i n a o 0 2 . 2 3 . 0 6 .
Salinity, temperature and oxygen stations and measurements
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Chlorophyll-A measurements
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Sediment condition
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Secci disc measurements
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Production data
Location of fish cages Location of fish pens
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Location of mussel farms
Numerical grid of variable density for computation of movement of water
Higher resolution of grid with quadruple density of numerical grid for computing transport of substances
