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

Hay River - Historical Weir Ruin HAY-01

Source Department of Water and Environment Regulation
Latest Sample Date 11-11-2009
Taxa count ORDER 5
Taxa count FAMILY 8
Taxa count ALT 8
Mayflies present? 0
ORDER FAMILY ALT
SIGNAL 3.4 3.2 2.5
Weighted SIGNAL 3 3.4

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Forestry 2.2.0 Production native forests, 3.1.0 Plantation forests 40.12% 10,561,293,400m2
  Pastoral Farming 3.2.0 Grazing modified pastures 25.18% 6,627,527,235m2
  Arable Farming 3.3.0 Cropping, 3.3.3 Hay and silage, 4.4.0 Irrigated perennial horticulture, 4.4.1 Irrigated tree fruits, 4.4.2 Irrigated olives, 4.4.9 Irrigated grapes 24.72% 6,506,026,736m2
  Minimal Use 1.3.3 Residual native cover 5.50% 1,449,005,954m2
Show minor land uses 6
263,241,082m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Nematoda II 1 3
Nematoda (Unident.) II999999
1
Oligochaeta LO 2 2
Oligochaeta (Unident.) LO999999
2
Acarina MM 8 6
Hydracarina (Unident.) MM9999A8
8
Hydracarina (Unident.)
Amphipoda OP 387 3
Ceinidae (Unident.) OP029999
306
Ceinidae (Unident.)
Ceinidae (Unident.)
Ceinidae (Unident.)
Perthiidae (Unident.) OP089999
81
Perthiidae (Unident.)
Perthiidae (Unident.)
Perthiidae (Unident.)
Diptera QD 21 3
Ceratopogonidae (Unident.) QD099999
8
Ceratopogonidae (Unident.)
Orthocladiinae (Unident.) QDAF9999
2
Chironominae (Unident.) QDAJ9999
11
ORDER
SIGNALT 3.4
Weighted SIGNALT 3.5