Information

Ecological parameter:  pH preference

Parameter group: habitat related parameters

Explanation:
As pH values fluctuate both annually and daily, the pH preferences of the occurring taxa often better reflect the acidity status of a water body than direct measurements. Three categories are defined.

Classification system: single category assignment system

Abbreviations:
Category nameAbbreviationExplanation
acidacipH < 7
neutral to alkalineneupH = 7
indifferentindno specific preference
Assigned taxa for each higher systematic unit
TaxagroupNumber of assigned taxa / total number of taxa - percentage
Ephemeroptera95 / 353 - 26.9%
Odonata166 / 174 - 95.4%
Plecoptera73 / 576 - 12.6%
Trichoptera124 / 1439 - 8.6%
Chironomidae107 / 1315 - 8.1%