Table 1.
Attributes tested, methodologies and references
| Attributes | Methodologies | References |
|---|---|---|
| Temperature (°C) | Mercury filament thermometer 0–60 °C | APHA (2005) |
| Turbidity (uT) | Turbidimetric | |
| Apparent colour (uH) | Colourimetric | |
| Electrical conductivity (dS m−1) | Conductivity meter | |
| Secchi transparency (m) | Secchi disk | |
| pH | pH meter | |
| Total solids, TS (mg L−1) | Drying at 103–105 °C | |
| Total volatile solids, TVS (mg L−1) | Ignition at 500–550 °C | |
| Total fixed solids, TFS (mg L−1) | ||
| Total suspended solids, TSS (mg L−1) | Vacuum filtration with fibreglass membrane 0.45-μm porosity | |
| Total dissolved solids, TDS (mg L−1) | Drying at 103–105 °C | |
| Inorganic suspended solids, ISS (mg L−1) | Vacuum filtration with fibreglass membrane 0.45-μm porosity | |
| Volatile suspended solids, VSS (mg L−1) | Ignition at 500–550 °C | |
| Dissolved oxygen (mg L−1) | Winkler method (Azide modification)—iodometry | |
| DBO5 (mg L−1) | Standard flasks—iodometry | |
| Total phosphorus, TP (mg L−1) | Spectrophotometry—ascorbic acid | |
| Soluble orthophosphate, SOP (mg L−1) | ||
| Sulphates (mg L−1) | Turbidimetric | |
| Chlorides (mg L−1) | Argentometric titration | |
| Potassium (mg L−1) | Photometry—flame emission | |
| Sodium (mg L−1) | ||
| Calcium (mg L−1) | Titration | |
| Magnesium (mg L−1) | ||
| Escherichia coli (NMP/100 mL) | Colilert | |
| Thermotolerant coliforms (NMP/100 mL) | Multiple tubes in an A1 medium | |
| Phytoplankton—qualitative and quantitative | Bright field microscopy of slides prepared from sediment obtained by centrifugation at 1500 rpm for 5–10 min to estimate the density of cyanobacteria and identification of phytoplankton using dichotomous identification keys | |
| Total ammonia nitrogen, TAN (mg L−1) | Spectrophotometric—macro-Kjeldahl distillation followed by direct Nesslerization | |
| Ammonia (mg L−1) | ||
| Nitrate (mg L−1) | Spectrophotometric—sodium salicylate | Rodier (1975) |
| Chlorophyll a (μg L−1) | Spectrophotometric—hot extraction with methanol | Jones (1979) |
| ricF(ec) | Richness of macroinvertebrate families associated with the roots of the macrophyte Eichhornia crassipes | Brusca and Brusca (2007); Mugnai et al. (2010) |
| ricF(ps) | Richness of macroinvertebrate families associated with the roots of the macrophyte Pistia stratiotes | |
| Abundance (Abec) | Abundance of macroinvertebrates associated with the roots of the macrophyte Eichhornia crassipes | |
| Abundance (Abps) | Abundance of macroinvertebrates associated with the roots of the macrophyte Pistia stratiotes |