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

Murray River @ Heywoods Bridge d/s Hume Dam MURR519

Source Office of Environment and Heritage
Latest Sample Date 23-01-1998
Taxa count ORDER 5
Taxa count FAMILY 10
Taxa count ALT 10
Mayflies present? 0
ORDER FAMILY ALT
SIGNAL 3.6 3.2 2.3
Weighted SIGNAL 2.9 3.3

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Forestry 2.2.0 Production native forests, 3.1.0 Plantation forests 29.20% 448,636,607,380m2
  Pastoral Farming 3.2.0 Grazing modified pastures, 3.2.5 Sown grasses, 4.2.0 Grazing irrigated modified pastures 25.29% 388,555,041,679m2
  Natural 1.1.1 Strict nature reserves, 1.1.3 National park, 1.1.4 Natural feature protection, 1.1.7 Other conserved area, 1.2.0 Managed resource protection, 1.2.1 Biodiversity, 1.2.4 Landscape 19.71% 302,917,091,691m2
  Minimal Use 1.3.0 Other minimal use, 2.1.0 Grazing native vegetation 5.03% 77,316,156,261m2
Show minor land uses 9
15,366,543,244m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Unknown OT 18
Atyidae (Unident.) OT019999
18
Atyidae (Unident.)
Atyidae (Unident.)
Coleoptera QC 8 5
Hydrophilidae (Unident.) QC119999
3
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydraenidae (Unident.) QC139999
5
Hydraenidae (Unident.)
Diptera QD 2 3
Orthocladiinae (Unident.) QDAF9999
1
Chironominae (Unident.) QDAJ9999
1
Hemiptera QH 123 2
Mesoveliidae (Unident.) QH529999
1
Veliidae (Unident.) QH569999
1
Gerridae (Unident.) QH579999
2
Corixidae (Unident.) QH659999
119
Trichoptera QT 1 8
Leptoceridae (Unident.) QT259999
1
ORDER
SIGNALT 3.6
Weighted SIGNALT 2.6
Taxa Abundance SIGNALT Grade
Unknown OT 76
Atyidae (Unident.) OT019999
76
Atyidae (Unident.)
Atyidae (Unident.)
Diptera QD 7 3
Orthocladiinae (Unident.) QDAF9999
7
Ephemeroptera QE 2 9
Baetidae (Unident.) QE029999
1
Caenidae (Unident.) QE089999
1
Hemiptera QH 134 2
Corixidae (Unident.) QH659999
134
Trichoptera QT 19 8
Hydroptilidae (Unident.) QT039999
1
Hydropsychidae (Unident.) QT069999
6
Ecnomidae (Unident.) QT089999
4
Calamoceratidae (Unident.) QT249999
1
Leptoceridae (Unident.) QT259999
7
ORDER
SIGNALT 4.4
Weighted SIGNALT 3.3