| Water category: | River |
| Pressure categories | Nutrients |
| Pressure detail | Inorganic nutrients: Total Phosphorus (in µg.L-1) Total Nitrogen (in µg.L-1) |
| WFD Indicators- R | Phytoplancton Macrophytes and phytobenthos Composition Abundance |
| Specific Index | |
| Brief text description | Relation beween the log of Chlorophyll a and the log of the concentration for each inorganic nutrient. |
| Long text description | Relation between the Chlorophyll a (in mg.m-2) and TP and TN in (µg.L-1): log Chl a = 0.905 log TP + 0.490 (r²=0.56, p<0.001) log Chl a = 0.984 log TN - 0.935 (r²=0.50, p<0.001) Nutrient range: TP=6-130 µg.L-1 TN=179-2873 µg.L-1 Source data from 33 sites, 13 rivers of Ontario and Quebec. (Canada) |
| History of development | |
| References | Chetelat, J., Pick, F. R., Morin, A. and Hamilton, P. B. (1999) Periphyton biomass and community com-position in rivers of different nutrient status. Canadian Journal of Fisheries and Aquatic Sciences. 56(4):560-569 |
| Geographical region (GIG) - R | |
| Ecoregion - LR | |
| Country | XX Other country |
| Geographical location of source data | Sub-national |
| Reference conditions | Unknown |
| Development | Existing |
| Uncertainty | Unknown |
| Link to document store | No |
| BMW Toolbox | No |
| Entry status | Unvalidated |