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MERC ER01-10
6
6. Results Trial 1 (STDN-CAL): 15-20 October 2009
Physical Parameters
TSS
mg/l
DOC
mg/l
POC
mg/l
T0 Initial
Ave
StDev
Ave
StDev
Ave
StDev
Conditions
20.6
4.1
3.96
0.31
1.997
0.271
Temp
o
C
Salinity
psu
Dis. Oxygen
mg/l
Turbidity
NTU
Ave
StDev
Ave
StDev
Ave
StDev
Ave
StDev
T0 Control
16.97
0.02
13.26
0.01
7.11
0.06
8.16
0.86
T0 Treated
17.10
0.01
13.21
0.01
7.74
0.09
9.75
0.63
TF Control
16.24
0.02
13.57
0.00
7.09
0.17
1.21
0.09
TF Treated
16.27
0.01
13.36
0.00
8.31
0.01
4.20
0.14
Live Organisms > 50
µ
m
T0 Ave
#/m
3
T0 StDev
#/m
3
TF Ave
#/m
3
TF StDev
#/m
3
Control
60,000
11,250
72,000
3,000
Treated
ND
ND
1.4
1.7
* Taxa listed in order of abundance.
Live Organisms 10 - 50
µ
m
Vital Stain Results
-
It is important to note that the specific approach used underestimates
the abundances of live organisms in this size class because it has been found that not all live
organisms reliably take up the CMFDA stain.
T0 Ave #/ml
T0 StDev #/ml
TF Ave #/ml
TF StDev #/ml
Control
258
50.6
4
2.4
Treatment
0
0
0
0
*TF Control
*TF Treated
Spionid polychaete
Rotifera
Copepod nauplii
Spionid polychaete
Rotifera
Calanoida (
Acartia
sp.)
Cirripedia nauplii
Turbellaria
Dominant species
Type
Other
Skeletonema costatum Diatom
Chain-forming
Thalassiosira sp.
Diatom
Chain-forming
Oxyrrhis marina
Dinoflagellate