Table 1

Biotic coefficient	Dominating ecological group	Benthic community health	Site disturbance classification	Ecological status
0.0 < AMBI ≤ 0.2 0.2 < AMBI ≤ 1.2	I	Normal Impoverished	Undisturbed	High status
1.2 < AMBI ≤ 3.3	III	Unbalanced	Slightly disturbed	Good status
3.3 < AMBI ≤ 4.3 4.3 < AMBI ≤ 5.0	IV-V	Transitional to pollution Polluted	Moderately disturbed	Moderate status
3.3 < AMBI ≤ 4.3 4.3 < AMBI ≤ 5.0	IV-V	Transitional to pollution Polluted	Moderately disturbed	Poor status
5.0 < AMBI ≤ 5.5 5.5 < AMBI ≤ 6.0	V	Transitional to heavy pollution Heavily polluted	Heavily disturbed	Bad status

Table 1: Summary of the AMBI values and their equivalences (Borja et al., 2000)[8]