| Water category: | River |
| Pressure categories | Nutrients |
| Pressure detail | |
| WFD Indicators- R | Abundance |
| Specific Index | Species abundance |
| Brief text description | Optimum and range of nutrient concentrations for individual species |
| Long text description | "Basis on which most macrophyte indices are developed. Based on frequence and abundance of occurence to ranges in nutrient conditions." |
| History of development | |
| References | "Schneider, S. and A. Melzer (2003). ""The trophic index of macrophytes (TIM) - a new tool for indicating the trophic state of running waters."" International Review of Hydrology 88(1): 49-67. Holmes, N. T. H., J. R. Newman, et al. (1999). Mean Trophic Rank: A User's manual, Environment Agency: 129. Meilinger, P., S. Schneider, et al. (2005). ""The reference index method for the macrophyte-based assessment of rivers - a contribution to the implementation of the European Water Framework Directive in Germany."" International Review of Hydrobiology 90(3): 322-342." |
| Geographical region (GIG) - R | RNO Northern RCE - Central+Baltic |
| Ecoregion - LR | 17. Ireland and Northern Ireland 18. Great Britain |
| Country | D Germany B Belgium DK Denmark NL Netherlands P Portugal FIN Finland S Sweden UK United Kingdom BG Bulgaria CY Cyprus CZ Czech Republic EE Estonia HU Hungary LV Latvia LT Lithuania MT Malta PL Poland RO Romania SK Slovakia SI Slovenia TR Turkey NO Norway XX Other country |
| Geographical location of source data | National |
| Reference conditions | Unknown |
| Development | Existing |
| Uncertainty | Unknown |
| Link to document store | No |
| BMW Toolbox | No |
| Entry status | Unvalidated |