Information
Ecological parameter: nitrogen van DamParameter group: habitat related parameters
Explanation:
Classification as nitrogen indicator (measure of eutrophication) following van Dam et al. (1994). Two different classifactions are provided: values modified by Coste (Lecointe et al., 1993) and values by van Dam et al. (1994).
Van Dam, H., Mertens, A. & Sinkeldam, J. (1994): A coded checklist and ecological indicator values of freshwater diatoms from the Netherlands. Netherlands J. Aquatic Ecol. 28 (1): 117-133.
Lecointe, C., Coste, M. & Prygiel, J. (1993): OMNIDIA software for taxonomy, calculation of diatom indices and inventories management. Hydrobiologia 269/270: 509-513.
Abbreviations:
| Category name | Abbreviation | Explanation |
|---|---|---|
| 1 | 1 | nitrogen-autotrophic taxa, tolerating very small concentrations of organically bound nitrogen |
| 2 | 2 | nitrogen-autotrophic taxa, tolerating elevated concentrations of organically bound nitrogen |
| 3 | 3 | facultatively nitrogen-heterotrophic taxa, needing periodically elevated concentrations of organically bound nitrogen |
| 4 | 4 | obligately nitrogen-heterotrophic taxa, needing continuously elevated concentrations of organically bound nitrogen |
| Taxagroup | Number of assigned taxa / total number of taxa - percentage |
|---|---|
| Surirellacees | 494 / 6949 - 7.1% |