Predictor Variable

Description

ALKALINITY

Total carbonates. (mg/l)

ALTITUDE

Height above sea level. (m)

BANKWIDTH

Distance between the banks. (m)

BOULDER

Percent boulder [>256mm] in habitat. (%)

CATCHAREA

Catchment area upstream of site. (square km)

COBBLE

Percent cobble [64-256mm] in habitat. (%)

DEPTH

Mean water depth of habitat. ACT - (cm); Other - (m)

DFS

Distance from source. (km)

EBANKVEG

Trailing bank vegetation. ACT - ( 1=nil; 2=slight; 3=moderate; 4=extensive); Tas - (?=nil [<5%]; ?=sparse [6-25%]; ?=moderate [26-50%]; ?=thick [51-75%]; ?=extensive [>76%])

GFS

Percent cover of riparian zone by grasses, ferns and sedges. (%)

HABAREA

Percent habitat in reach. (%)

LATITUDE

Latitude of site. ACT, SA - (degrees & minutes as: ddmm (omit negative sign)); NT, Vic, WA, Qld State - (decimal degrees to 4dp (omit negative sign)); NSW, Qld Regional, South Coast Livepick - (decimal degrees to 4dp); Tas - (degrees, minutes and seconds as: ddmmss0 (omit negative sign, add trailing 0)); Thredbo - (degrees, minutes and seconds as: ddmmss (omit negative sign)); Alps, South Coast Labsort - (degrees and decimal minutes as: ddmm.mmmm).

LONGITUDE

Longitude of site. ACT, SA - (degrees & minutes as: dddmm); NSW, NT, Qld State & Regional, Vic, WA - (decimal degrees to 4dp); South Coast Labsort, Alps - (degrees and decimal minutes as: dddmm.mmmm); Tas - (degrees, minutes and seconds as: ddmmss (omit negative sign, omit leading 1)); Thredbo - (degrees, minutes and seconds as: dddmmss); South Coast Livepick - (N/A).

MACROCAT

Macrophyte category: percentage of habitat covered by macrophytes. (1=<10%; 2=10-35%; 3=35-60%; 4=65-90%; 5=>90%)

PEBBLE

Percent pebble [16-64mm] in habitat. (%)

REBOULDER

Percent boulder [>256mm] in reach. (%)

RECOBBLE

Percent cobble [64-256mm] in reach. (%)

REGRAVEL

Percent gravel [2-16mm] in reach. (%)

RIPWIDTH

Width of the riparian zone; mean from both banks. (m)

SHADING

Percent category of the river shaded at midday. (1 = <5%; 2 = 6-25%; 3 = 26-50%; 4 = 51-75%; 5 = >76%)

SHRUBVINE

Percent cover of riparian zone by shrubs and vines. (%)

STORDER

Stream order: category based on the degree of branching. (1, 2, 3, ....)

STREAMWIDTH

Mean width of water. (m)

TREES>10

Percent cover of riparian zone by trees greater than 10m in height. (%)

VEGCOVER

Streamside vegetation cover score. (0-2 = poor [soil,culverts etc]; 3-5 = fair [grass,sedge,fern]; 6-8= good [shrub]; 9-10=excellent [tree])

VELOCITY

Mean water velocity in habitat. (m/s)