Parameter n mean STD Min Max
Biomass (kg) 54 104.9 63.0 39.7 202.3
Water temperature (˚C) 681 11.0 1.3 9.1 13.9
pH 54 7.3 0.2 7.1 7.7
Total ammonia (mg l-1) 54 0.9 0.6 0.2 2.3
Nitrite (mg l-1) 54 0.8 0.7 0.1 4.9
Nitrate (mg l-1) 54 47.6 33.4 11.0 96.3
Biological oxygen demand (mg l-1) 54 1.4 0.5 1.0 2.5
Chemical oxygen demand (mg l-1) 54 2.6 1.1 1.0 4.1
Suspended solids (mg l-1) 54 3.3 1.5 2.0 5.0
Chlorides (mg l-1) 54 94.1 37.58 43.71 130.96
Phosphorus (mg l-1) 54 0.8 0.7 0.1 1.5
Alkalinity(mmol l-1) 54 1.8 0.3 1.3 2.1
Table 1: Summary of bi-weekly water quality assessments, measured during 11 production cycles of at least 2 months. Data are presented as mean ± standard deviation and minimum and maximum values.
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