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

LACHLAN RIVER @ Brewster Weir 65764

Source Office of Environment and Heritage
Latest Sample Date 21-09-2006
Taxa count ORDER 13
Taxa count FAMILY 28
Taxa count ALT 28
Mayflies present? 18
ORDER FAMILY ALT
SIGNAL 3.2 3.4 2.6
Weighted SIGNAL 3.8 3.5

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Arable Farming 3.3.0 Cropping, 4.3.0 Irrigated cropping 48.80% 4,940,465,351m2
  Minimal Use 2.1.0 Grazing native vegetation 33.50% 3,391,491,068m2
  Pastoral Farming 3.2.0 Grazing modified pastures, 4.2.0 Grazing irrigated modified pastures 12.81% 1,297,187,825m2
  Water 6.3.0 River, 6.5.0 Marsh/wetland 4.67% 472,568,425m2
Show minor land uses 1
101,232,158m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Gastropoda KG 4 1
Ancylidae (Unident.) KG069999
 2
Physidae (Unident.) KG089999
 2
Oligochaeta LO 3 2
Oligochaeta (Unident.) LO999999
 3
Acarina MM 2 6
Mites (Unident.) MM999999
 2
Mites (Unident.)
Mites (Unident.)
Unknown OH 15
Ostracoda (Unident.) OH999999
 15
Unknown OJ 2
Copepoda (Unident.) OJ999999
 2
Isopoda OR 1 2
Oniscidae sp.(Unident.) OR259999
 1
Oniscidae sp.(Unident.)
Unknown OT 18
Atyidae (Unident.) OT019999
 14
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Palaemonidae (Unident.) OT029999
 4
Palaemonidae (Unident.)
Palaemonidae (Unident.)
Coleoptera QC 17 5
Dytiscidae (Unident.) QC099999
 4
Gyrinidae (Unident.) QC109999
 6
Gyrinidae (Unident.)
Gyrinidae (Unident.)
Hydrophilidae (Unident.) QC119999
 6
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydraenidae (Unident.) QC139999
 1
Hydraenidae (Unident.)
Diptera QD 87 3
Ceratopogonidae (Unident.) QD099999
 14
Ceratopogonidae (Unident.)
Ceratopogonidae (Unident.)
Tanypodinae (Unident.) QDAE9999
 3
Orthocladiinae (Unident.) QDAF9999
 57
Chironominae (Unident.) QDAJ9999
 13
Ephemeroptera QE 18 9
Baetidae (Unident.) QE029999
 5
Leptophlebiidae (Unident.) QE069999
 1
Caenidae (Unident.) QE089999
 12
Hemiptera QH 26 2
Veliidae (Unident.) QH569999
 2
Gerridae (Unident.) QH579999
 2
Corixidae (Unident.) QH659999
 16
Notonectidae (Unident.) QH679999
 6
Odonata QO 40 3
Coenagrionidae (Unident.) QO029999
 37
Protoneuridae (Unident.) QO049999
 1
Corduliidae (Unident.) QO169999
 2
Trichoptera QT 6 8
Leptoceridae (Unident.) QT259999
 6
ORDER
SIGNALT 3.2
Weighted SIGNALT 3.3

   

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