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NOTICE: SIGNALT Calculations are currently running through final testing and may be inaccurate until completed.

Gairdner River - Evgai01 EVGAI01

Source Department of Water and Environment Regulation
Latest Sample Date 03-11-2008
Taxa count ORDER 6
Taxa count FAMILY 8
Taxa count ALT 8
Mayflies present? 0
ORDER FAMILY ALT
SIGNAL 3.5 3.4 1.9
Weighted SIGNAL 3 3.3

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Arable Farming 3.3.0 Cropping 59.83% 92,484,127,304m2
  Minimal Use 1.3.0 Other minimal use, 1.3.3 Residual native cover 19.19% 29,662,720,098m2
  Natural 1.1.1 Strict nature reserves, 1.1.3 National park, 1.1.7 Other conserved area, 1.2.2 Surface water supply 16.71% 25,823,256,327m2
  Pastoral Farming 3.2.0 Grazing modified pastures 3.30% 5,094,951,923m2
Show minor land uses 5
1,545,675,415m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Unknown ?? 4
Unknown ???
4
Nematoda II 89 3
Nematoda (Unident.) II999999
89
Oligochaeta LO 111 2
Oligochaeta (Unident.) LO999999
111
Coleoptera QC 6 5
Hydrophilidae (Unident.) QC119999
6
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Diptera QD 24 3
Stratiomyidae (Unident.) QD249999
1
Tanypodinae (Unident.) QDAE9999
5
Chironominae (Unident.) QDAJ9999
18
Trichoptera QT 72 8
Leptoceridae (Unident.) QT259999
72
ORDER
SIGNALT 3.5
Weighted SIGNALT 3.8