Information

Ecological parameter:  rheo index (RIB)

Parameter group: habitat related parameters

Explanation:
The rheoindex describes the affinity of a taxon to the current velocity. Taxa are assigned values between 1 and 3 according to Banning (1998). A high value indicates that a taxon is typically found in sections of rivers/streams with high current velocities.

Banning, M. (1990): Der Rheo-Index - eine Möglichkeit zur Berechnung der Auswirkungen des Flußstaus auf die benthische Lebensgemeinschaft. Erweiterte Zusammenfassung der Jahrestagung der DGL in Essen: 186 - 190.


Classification system: metric value (1-3)

Abbreviations:
Category nameAbbreviationExplanation
rheo indexRIBrheo index
1lotic taxon
2lentic taxon
3indifferent taxon
Assigned taxa for each higher systematic unit
TaxagroupNumber of assigned taxa / total number of taxa - percentage
Porifera4 / 12 - 33.3%
Coelenterata1 / 13 - 7.6%
Turbellaria8 / 61 - 13.1%
Gastropoda30 / 241 - 12.4%
Bivalvia18 / 77 - 23.3%
Oligochaeta10 / 240 - 4.1%
Hirudinea5 / 68 - 7.3%
Crustacea8 / 270 - 2.9%
Ephemeroptera50 / 353 - 14.1%
Odonata18 / 174 - 10.3%
Plecoptera58 / 576 - 10%
Heteroptera15 / 124 - 12%
Megaloptera3 / 6 - 50%
Planipennia2 / 12 - 16.6%
Coleoptera79 / 2678 - 2.9%
Trichoptera90 / 1439 - 6.2%
Diptera (excl. Chironomidae)7 / 2404 - 0.2%
Chironomidae2 / 1315 - 0.1%
Bryozoa2 / 19 - 10.5%