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

Marra Ck @ Yarrawin 62553

Source Office of Environment and Heritage
Latest Sample Date 06-10-2005
Taxa count ORDER 12
Taxa count FAMILY 21
Taxa count ALT 21
Mayflies present? 0
ORDER FAMILY ALT
SIGNAL 2.8 3.1 1.8
Weighted SIGNAL 4.4 3.3

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Minimal Use 1.3.0 Other minimal use, 1.3.2 Stock route, 1.3.3 Residual native cover, 1.3.4 Rehabilitation, 2.1.0 Grazing native vegetation 79.11% 267,515,135,854m2
  Arable Farming 3.3.0 Cropping, 3.3.3 Hay and silage, 3.3.6 Cotton, 4.3.0 Irrigated cropping, 4.3.6 Irrigated cotton, 4.4.9 Irrigated grapes 11.64% 39,368,160,501m2
  Natural 1.2.0 Managed resource protection, 1.2.2 Surface water supply 5.47% 18,511,045,672m2
Show minor land uses 5
3,381,642,185m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Turbellaria IF 8 2
Dugesiidae (Unident.) IF619999
8
Gastropoda KG 2 1
Ancylidae (Unident.) KG069999
2
Hirudinea LH 1 1
Richardsonianidae (Unident.) LH039999
1
Oligochaeta LO 2 2
Oligochaeta (Unident.) LO999999
2
Acarina MM 11 6
Mites (Unident.) MM999999
11
Mites (Unident.)
Mites (Unident.)
Unknown OH 32
Ostracoda (Unident.) OH999999
32
Unknown OJ 18
Copepoda (Unident.) OJ999999
18
Coleoptera QC 33 5
Dytiscidae (Unident.) QC099999
21
Hydrophilidae (Unident.) QC119999
12
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Diptera QD 125 3
Culicidae (Unident.) QD079999
4
Culicidae (Unident.)
Ceratopogonidae (Unident.) QD099999
6
Ceratopogonidae (Unident.)
Ceratopogonidae (Unident.)
Tanypodinae (Unident.) QDAE9999
56
Orthocladiinae (Unident.) QDAF9999
6
Chironominae (Unident.) QDAJ9999
53
Hemiptera QH 28 2
Veliidae (Unident.) QH569999
2
Corixidae (Unident.) QH659999
18
Notonectidae (Unident.) QH679999
8
Odonata QO 4 3
Lestidae (Unident.) QO059999
3
Corduliidae (Unident.) QO169999
1
Trichoptera QT 55 8
Hydroptilidae (Unident.) QT039999
2
Leptoceridae (Unident.) QT259999
53
ORDER
SIGNALT 2.8
Weighted SIGNALT 3.2