| AMBI | Calculates AMBI, the AZTI Marine Biotic Index |
| AMBI_sal | Minimum AMBI as a linear function of salinity |
| AMBI_species | Returns species list for AMBI calculations |
| DKI | Calculates DKI (_v1_) |
| DKI2 | Calculates DKI (v2) |
| Hdash | Calculates H' the Shannon diversity index |
| H_sal | Maximum H' as a linear function of salinity |
| MAMBI | Calculates M-AMBI, the multivariate AZTI Marine Biotic Index |
| test_data | AMBI test dataset |