EXCERPT from Table 10. Summary statistics for the physical-habitat characteristics and biotic indices for the studied wadeable streams in Wisconsin.
[EPT, Ephemeroptera, Plecoptera, and Trichoptera; #, number; m, meter; m/km, meter per kilometer; mg/m2, milligram per square meter; log, logarithm to base 10 transformation; --, values are not indicative of water quality]
Characteristic/index | Abbreviation | Units |
---|---|---|
Physical-habitat characteristics | ||
Stream width | WIDTH | m |
Stream mean depth | DEPTH | m |
Mean thalweg depth | THALD | m |
Stream gradient | GRAD | m/km |
Percentage of pools | POOL% | % |
Percentage of riffle | RIFF% | % |
Percentage of run | RUN% | % |
Depth of sediment on stream bottom | SEDEP | m |
Percentage of silt in bottom sediments | SILT% | % |
Percentage of sand in bottom sediments | SAND% | % |
Percentage of gravel in bottom sediments | GRAV% | % |
Percentage of rocky-substrate embeddedness | EMB% | % |
Percentage of stream bottom covered by algae | ALGAE% | % |
Percentage of stream bottom covered by macrophytes | MACR% | % |
Percentage of stream with fish cover | COVER% | % |
Percentage of stream shaded | SHADE% | % |
Percentage of stream bank with erosion | EROSION% | % |
Buffer width | BUFFER | m |
Benthic chlorophyll a | BCHL | mg/m2 |
Diatom Nutrient Index | DNI | # |
Diatom Siltation Index | DSI | # |
Diatom Biotic Index | DBI | # |
Hilsenhoff Biotic Index | HBI | # |
Percentage of EPT individuals | EPTN% | % |
Percentage of EPT taxa | EPTTX% | % |
Percentage of scrapers | SCRAP% | % |
Percentage of shredders | SHRED% | % |
Number of taxa | TAXAN | # |
Fish Index of Biotic Integrity | IBI | # |
Percentage of carnivores | CARN% | % |
Percentage of insectivores | INSECT% | % |
Percentage of omnivores | OMNI% | % |
Percentage of intolerant species | TOL% | % |
Percentage of tolerant species | INTOL% | % |
Number of fish | FISHN | # |
Number of fish species | FISHSPEC | # |