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

Lachlan R @ Narrawa Bridge 60687

Source Office of Environment and Heritage
Latest Sample Date 25-11-2004
Taxa count ORDER 14
Taxa count FAMILY 30
Taxa count ALT 30
Mayflies present? 21
ORDER FAMILY ALT
SIGNAL 3.1 4.2 3.1
Weighted SIGNAL 4.9 4.3

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Minimal Use 2.1.0 Grazing native vegetation 99.40% 247,037,997m2
Show minor land uses 1
2,485,413m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Nematoda II 1 3
Nematoda (Unident.) II999999
1
Gastropoda KG 2 1
Ancylidae (Unident.) KG069999
2
Bivalvia KP 3 3
Corbiculidae (Unident.) KP029999
3
Hirudinea LH 1 1
Glossiphoniidae (Unident.) LH019999
1
Oligochaeta LO 12 2
Oligochaeta (Unident.) LO999999
12
Acarina MM 1 6
Mites (Unident.) MM999999
1
Mites (Unident.)
Unknown OH 1
Ostracoda (Unident.) OH999999
1
Unknown OT 5
Atyidae (Unident.) OT019999
2
Atyidae (Unident.)
Atyidae (Unident.)
Palaemonidae (Unident.) OT029999
3
Palaemonidae (Unident.)
Unknown OV 2
Parastacidae (Unident.) OV019999
2
Parastacidae (Unident.)
Parastacidae (Unident.)
Coleoptera QC 43 5
Dytiscidae (Unident.) QC099999
13
Gyrinidae (Unident.) QC109999
27
Gyrinidae (Unident.)
Gyrinidae (Unident.)
Staphylinidae (Unident.) QC189999
1
Elmidae (Unident.) QC349999
2
Elmidae (Unident.)
Diptera QD 164 3
Ceratopogonidae (Unident.) QD099999
6
Ceratopogonidae (Unident.)
Simuliidae (Unident.) QD109999
67
Simuliidae (Unident.)
Simuliidae (Unident.)
Stratiomyidae (Unident.) QD249999
1
Tanypodinae (Unident.) QDAE9999
2
Orthocladiinae (Unident.) QDAF9999
50
Chironominae (Unident.) QDAJ9999
38
Ephemeroptera QE 21 9
Baetidae (Unident.) QE029999
11
Leptophlebiidae (Unident.) QE069999
9
Caenidae (Unident.) QE089999
1
Hemiptera QH 10 2
Veliidae (Unident.) QH569999
3
Corixidae (Unident.) QH659999
7
Trichoptera QT 26 8
Hydrobiosidae (Unident.) QT019999
1
Hydroptilidae (Unident.) QT039999
5
Hydropsychidae (Unident.) QT069999
14
Ecnomidae (Unident.) QT089999
1
Leptoceridae (Unident.) QT259999
5
ORDER
SIGNALT 3.1
Weighted SIGNALT 4.2