MERC ER01-14
7
NTL Total Suspended Solids (TSS)
TSS values for this trial are not provided because they did not meet MERC data quality
standards. However, there did not appear to be significant differences between challenge and
treated TSS values, both between approximately 3 and 4 mg/L.
NTL Particulate Carbon Data
Samples from the time-integrated chambers.
Sample ID Ave (mg/L)
SD
Challenge
1.09
0.02
Treated
1.09
0.02
NTL Live Organisms ≥50 µm
Samples from the 35 µm mesh nets.
Sample ID
Ave (#/m
3
)
SD
Challenge
32,243
3,356
Treated
32,909
1,053
Zooplankton Taxa and Observations
Minimum dimensions measured.
Challenge (pre-filter)
1. Eleven (11) taxa or general categories were present in the challenge samples: Calanoida,
Cyclopoida, Harpacticoida, bivalves, diatoms, copepod nauplii, polychaetes, barnacle nauplii,
Nematoda, eggs, and Rotifera
2. Calanoida, Cyclopoida, Harpacticoida, (all adult-stage copepods), bivalves and diatoms, were
in very low abundance.
3. The remaining taxa: copepod nauplii, polychaetes, barnacle nauplii, Nematoda, eggs, and
Rotifera were similar to the treated sample in size and abundance.
Treated (post-filter)
1. Six (6) taxa or general categories remained in the treated sample: copepod nauplii,
polychaetes, barnacle nauplii, Nematoda, eggs, and Rotifera.
2. Large abundances of copepod nauplii and rotifers were present in the 50-60 µm size class.
3. Polychaetes (soft-bodied) found were mainly in the 50-80 µm size class; however, two
polychaetes measured about 110 µm.
NTL Live Organisms
≥
10 - <50 µm
Samples from the time-integrated chambers.
Sample ID
Ave (#/ml)
SD
Challenge
1,517
150
Treated
1,190
61
