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

Colligen Ck @ Colligen Bridge Werai SF MURR106

Source Office of Environment and Heritage
Latest Sample Date 28-11-1998
Taxa count ORDER 6
Taxa count FAMILY 11
Taxa count ALT 11
Mayflies present? 4
ORDER FAMILY ALT
SIGNAL 3.2 3.2 2.5
Weighted SIGNAL 3.4 3.8

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Arable Farming 3.3.0 Cropping, 4.3.0 Irrigated cropping 36.17% 4,032,921,795m2
  Minimal Use 2.1.0 Grazing native vegetation 29.01% 3,234,439,790m2
  Natural 1.1.3 National park, 1.2.0 Managed resource protection 16.58% 1,848,036,961m2
  Water 6.2.0 Reservoir/dam, 6.3.0 River, 6.4.0 Channel/aqueduct, 6.5.0 Marsh/wetland 9.04% 1,007,792,822m2
  Pastoral Farming 3.2.0 Grazing modified pastures 8.48% 945,524,729m2
Show minor land uses 2
111,489,894m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Unknown OT 17
Atyidae (Unident.) OT019999
 16
Atyidae (Unident.)
Atyidae (Unident.)
Palaemonidae (Unident.) OT029999
 1
Palaemonidae (Unident.)
Unknown OV 2
Parastacidae (Unident.) OV019999
 2
Parastacidae (Unident.)
Parastacidae (Unident.)
Coleoptera QC 3 5
Hydraenidae (Unident.) QC139999
 3
Hydraenidae (Unident.)
Diptera QD 2 3
Tanypodinae (Unident.) QDAE9999
 1
Chironominae (Unident.) QDAJ9999
 1
Ephemeroptera QE 4 9
Baetidae (Unident.) QE029999
 1
Leptophlebiidae (Unident.) QE069999
 3
Hemiptera QH 157 2
Veliidae (Unident.) QH569999
 6
Corixidae (Unident.) QH659999
 147
Notonectidae (Unident.) QH679999
 4
ORDER
SIGNALT 3.2
Weighted SIGNALT 2.7
Taxa Abundance SIGNALT Grade
Unknown OT 14
Atyidae (Unident.) OT019999
 14
Atyidae (Unident.)
Atyidae (Unident.)
Ephemeroptera QE 28 9
Leptophlebiidae (Unident.) QE069999
 5
Caenidae (Unident.) QE089999
 23
Hemiptera QH 58 2
Corixidae (Unident.) QH659999
 58
Odonata QO 1 3
Coenagrionidae (Unident.) QO029999
 1
Trichoptera QT 1 8
Ecnomidae (Unident.) QT089999
 1
ORDER
SIGNALT 4.4
Weighted SIGNALT 4.1

   

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