Information

Ecological parameter:  saprobity

Parameter group: sabrobic preference parameters

Explanation:
Species are ranked within the saprobic system (5 saprobity levels), which allows the determination of water quality and levels of organic waste (pollution). The system is based on patterns of abundance and distribution of various indicator species.

Classification system: 10 point assignment system

Abbreviations:
Category nameAbbreviationExplanation
Saprobic indexSI
Indicator weightG
xenosaprobxeno
oligosaproboligo
beta-mesosaprobbeta
alpha-mesosaprobalpha
polysaprobpoly
All countriesall
AustriaAT
Czeh RepublicCZ
GermanyDE
NetherlandsNL
Slovak RepublicSK
Assigned taxa for each higher systematic unit
TaxagroupNumber of assigned taxa / total number of taxa - percentage
Porifera5 / 9 - 55.5%
Coelenterata5 / 13 - 38.4%
Turbellaria20 / 60 - 33.3%
Kamptozoa1 / 1 - 100%
Nematomorpha1 / 1 - 100%
Nemertini1 / 1 - 100%
Gastropoda81 / 230 - 35.2%
Bivalvia33 / 66 - 50%
Polychaeta2 / 13 - 15.3%
Oligochaeta87 / 234 - 37.1%
Hirudinea32 / 66 - 48.4%
Branchiobdellida4 / 8 - 50%
Araneae1 / 1 - 100%
Hydrachnidia16 / 253 - 6.3%
Crustacea25 / 255 - 9.8%
Ephemeroptera94 / 344 - 27.3%
Odonata38 / 158 - 24%
Plecoptera91 / 571 - 15.9%
Heteroptera33 / 124 - 26.6%
Megaloptera4 / 6 - 66.6%
Planipennia2 / 12 - 16.6%
Coleoptera569 / 3342 - 17%
Trichoptera219 / 1428 - 15.3%
Lepidoptera4 / 18 - 22.2%
Diptera (excl. Chironomidae)191 / 2342 - 8.1%
Chironomidae267 / 1278 - 20.8%
Bryozoa11 / 16 - 68.7%