Equipment used for monitoring environmental impact from aquaculture in the Philippines
CDTO Deploying CTDO profile through column Water quality samplerChlorophyll – A measurements in Bolinao bay
Bathymetry of Bolinao north entrance
Bathymetry (depth recordings) of the area
Data collectedBathymetry (depth recordings) of the areaTidal range and current speed, direction and dispersionPhysical parameters - Temperature, turbidity, salinity, oxygen, profile
through the water columnWater quality – chlorophyll, phosphorous, nitrite, ammoniaSediment analysis (biological and chemical)Weather data wind direction, speed, temperature
Echosounder and GPS for making accurate bathymetry maps
Current meters Data out put (direction and speed)
Current meter position and water transport rose
Grab for sediment samples
Benthic analysis of sediment samples
Tidal range and current speed, direction and dispersion
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CM06
CM08
CM11
CM01
CM07
Bolinao CM01 (6 m depth)water transport (l/(s*m^2))
0
10
20
300
1530
45
60
75
90
105
120
135150
165180
195210
225
240
255
270
285
300
315330
345
Bolinao CM01 (5 m depth)
0
45
90
135
180
225
270
315
360
04.1
5.05
11
04.1
5.05
17
04.1
5.05
23
04.1
6.05
5
04.1
6.05
11
Time
Direction
Bolinao CM01 (5 m depth)
0
5
10
15
20
25
30
35
40
45
04.15.0
5 11
04.15.0
5 17
04.15.0
5 23
04.16.0
5 5
04.16.0
5 12
Time
Spee
d (
cm
/sec)
Physical parameter profiles through the water column
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
8
4
0
De
pth
(m
)
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 .
Water quality measurements
Sediment analysis (biological and chemical)
High organic content- close to a fish cage
Low organic content- far away from a fish cage
Securing sounder to boat
Station 1:
Taxon Number
1. Cirratulus sp. (polychaeta) 338
2. Dorvillea sp. (polychaeta) 176
3. Nereis sp. (polychaeta) 123
4. Cirratulidae indet (polychaeta) 36
5. Loripes lucinalis (mollusca) 14
6. Paguridae indet (crustacea) 8
7. Lumbrineris sp. (polychaeta) 8
8. Paraonis sp. (polychaeta) 8
9. Typosyllis sp. (polychaeta) 8
10. Tellina donacina (mollusca) 7
Reference station:
Taxon Number
1. Tellina donacina (mollusca) 39
2. Lucinella divaricata (mollusca) 23
3. Gouldia minima (mollusca) 21
4. Owenia fusiformis (polychaeta) 20
5. Aspidosiphon mulleri (polychaeta) 196. Ascidiacea indet (tunicata) 17
7. Nuculana pella (mollusca) 15
8. Gonilia calliglypta (mollusca) 15
9. Tanaidacea indet (crustacea) 13
10. Lumbrineris sp. (polychaeta) 13
Example Impacted sample
Example Reference sample
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Bolinao-chlorophyll.dbf# 0.68 - 2 ug/l# 2.1 - 4 ug/l# 4.1 - 6 ug/l
# 6.1 - 30 ug/l
By: Rune Palerud1, Guttorm N. Christensen1, Patrick White1, Regie Regpala2. 1 Akvaplan-niva, 2 BFAR NIFTDC
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