MERC Land-Based Evaluation of the Filtrex Ballast Water Filter - page 10

MERC ER01-14
8
Phytoplankton Observations
Challenge and Treated
The majority of cells in both challenge and treated samples were sized at 15 -25 µm.
Chaetoceros
(small chains - none longer than 3 cells) was the dominant species. One large
unknown diatom species was noted in the challenge sample, but not present in the treated
sample.
NTL Active Chlorophyll-a Data
Samples from the time-integrated chambers.
Sample ID Ave (µg/L)
SD
Challenge
20.2
0.38
Treated
20.4
0.32
6.3. FXIT-30-AUG
(7 Nov 2013)
Augmented harbor water.
AUG Physical Data
Measured in the challenge and treated overflow drums at three time points, using a multi-
parameter instrument.
AUG Challenge (pre-filter)
AUG Treated (post-filter)
Time
Point
Temp
(C)
Salinity
(psu)
Dissolved
Oxygen
(mg/L)
Dissolved
Oxygen
(%)
TP1
14.7
11.1
9.0
95
TP2
14.8
11.1
9.3
97
TP3
14.7
11.1
8.9
94
Time
Point
Temp
(C)
Salinity
(psu)
Dissolved
Oxygen
(mg/L)
Dissolved
Oxygen
(%)
TP1
14.7
11.1
9.3
96
TP2
14.8
11.1
8.9
93
TP3
14.7
11.1
9.3
98
1,2,3,4,5,6,7,8,9 11,12,13,14,15,16,17,18,19,20,...27
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