Information

Ecological parameter:  trophy/organic pollution Steinberg

Parameter group: trophic preference parameters

Explanation:
Assessment of trophy/organic pollution following Steinberg & Schiefele (1988).
Steinberg, C. & Schiefele, S. (1988): Biological indication of trophy and pollution of running waters. Z. Wasser - Abwasser-Forsch. 21 : 227-234.

Assigned taxa for each higher systematic unit
TaxagroupNumber of assigned taxa / total number of taxa - percentage
Araphidees57 / 577 - 9.8%
Brachyraphydees10 / 366 - 2.7%
Centrophycidees4 / 847 - 0.4%
Monoraphidees45 / 528 - 8.5%
Naviculacees246 / 5376 - 4.5%
Nitzschiacees90 / 801 - 11.2%
Surirellacees10 / 291 - 3.4%