Information

Ecological parameter:  rheo index (RIB)

Parameter group: habitat preference 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 a river/stream with high current velocity.

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
RIBRheoindex
1lotic taxon
2lentic taxon
3indifferent taxon
Assigned taxa for each higher systematic unit
TaxagroupNumber of assigned taxa / total number of taxa - percentage
Porifera4 / 9 - 44.4%
Coelenterata1 / 13 - 7.6%
Turbellaria8 / 60 - 13.3%
Gastropoda30 / 230 - 13%
Bivalvia18 / 66 - 27.2%
Oligochaeta10 / 234 - 4.2%
Hirudinea5 / 66 - 7.5%
Crustacea8 / 255 - 3.1%
Ephemeroptera50 / 344 - 14.5%
Odonata18 / 158 - 11.3%
Plecoptera58 / 571 - 10.1%
Heteroptera15 / 124 - 12%
Megaloptera3 / 6 - 50%
Planipennia2 / 12 - 16.6%
Coleoptera79 / 3342 - 2.3%
Trichoptera90 / 1428 - 6.3%
Diptera (excl. Chironomidae)7 / 2342 - 0.2%
Chironomidae2 / 1278 - 0.1%
Bryozoa2 / 16 - 12.5%