Information

Ecological parameter:  oxygen van Dam

Parameter group: habitat preference parameters

Explanation:
Species serve as indicators for oxygen (measure of water pollution) following van Dam et al. (1994), modified by Coste (Lecointe et al., 1993).
Species serve as indicators for oxygen (measure of water pollution) following van Dam et al. (1994).

1= continuously high (about 100% saturation)
2= fairly high (above 75% saturation)
3= moderate (above 50% saturation)
4= low (above 30% saturation)
5= very low (about 10% saturation)

Assigned taxa for each higher systematic unit
TaxagroupNumber of assigned taxa / total number of taxa - percentage
Araphidees85 / 577 - 14.7%
Brachyraphydees44 / 366 - 12%
Centrophycidees51 / 847 - 6%
Epithemiacees8 / 82 - 9.7%
Monoraphidees74 / 528 - 14%
Naviculacees377 / 5376 - 7%
Nitzschiacees96 / 801 - 11.9%
Surirellacees26 / 291 - 8.9%