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

Tarlo River at Riverview 24126

Source Office of Environment and Heritage
Latest Sample Date 06-04-2011
Taxa count ORDER 11
Taxa count FAMILY 19
Taxa count ALT 19
Mayflies present? 0
ORDER FAMILY ALT
SIGNAL 2.7 2.7 2.1
Weighted SIGNAL 2.6 2.8

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Minimal Use 1.3.3 Residual native cover, 2.1.0 Grazing native vegetation 54.36% 12,126,280,847m2
  Pastoral Farming 3.2.0 Grazing modified pastures 34.51% 7,699,269,585m2
  Arable Farming 3.3.0 Cropping 7.55% 1,684,754,286m2
Show minor land uses 6
223,078,067m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Turbellaria IF 5 2
Dugesiidae (Unident.) IF619999
5
Gastropoda KG 4 1
Lymnaeidae (Unident.) KG059999
1
Physidae (Unident.) KG089999
3
Bivalvia KP 6 3
Sphaeriidae (Unident.) KP039999
6
Hirudinea LH 10 1
Glossiphoniidae (Unident.) LH019999
10
Oligochaeta LO 2 2
Oligochaeta (Unident.) LO999999
2
Unknown OJ 2
Copepoda (Unident.) OJ999999
2
Coleoptera QC 12 5
Dytiscidae (Unident.) QC099999
7
Gyrinidae (Unident.) QC109999
3
Gyrinidae (Unident.)
Scirtidae (Unident.) QC209999
2
Scirtidae (Unident.)
Diptera QD 6 3
Chironominae (Unident.) QDAJ9999
6
Hemiptera QH 11 2
Hydrometridae (Unident.) QH549999
1
Veliidae (Unident.) QH569999
2
Gerridae (Unident.) QH579999
1
Corixidae (Unident.) QH659999
4
Notonectidae (Unident.) QH679999
3
Odonata QO 4 3
Coenagrionidae (Unident.) QO029999
3
Corduliidae (Unident.) QO169999
1
Trichoptera QT 1 8
Hydroptilidae (Unident.) QT039999
1
ORDER
SIGNALT 2.7
Weighted SIGNALT 2.7