Table 5.
The classification of the rivers based on water quality indices (FBI, MFBI, BMWP and ASPT).
| Biological Indices/Class | Lata Kekabu | Sungai Gelok | Sungai Sedim | Durian Perangin | Lubok Semilang | Telaga Tujuh |
|---|---|---|---|---|---|---|
| Family Biotic Indices (FBI) | 3.49 | 3.88 | 2.33 | 3.26 | 4.27 | 4.27 |
| Class | Very good | Good | Very good | Very good | Moderately good | Moderately good |
| Malaysia Family Biotic Indices (MFBI) | 5.85 | 5.65 | 5.60 | 5.48 | 5.43 | 5.34 |
| Class | Good | Good | Good | Good | Good | Good |
| Biological Monitoring Working Party (BMWP) | 165 | 134 | 71 | 81 | 80 | 89 |
| Class | Very good | Good | Moderately good | Moderately good | Moderately good | Moderately good |
| Average Score Per Taxon (ASPT) | 6.71 | 6.92 | 7.12 | 7.02 | 7.04 | 7.10 |
| Class | Rather clean water | Rather clean water | Rather clean water | Rather clean water | Rather clean water | Rather clean water |