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

Hay River - Evhay08 EVHAY08

Source	Department of Water and Environment Regulation
Latest Sample Date	05-11-2009
Taxa count ORDER	9
Taxa count FAMILY	15
Taxa count ALT	16
Mayflies present?	1
	ORDER	FAMILY	ALT
SIGNAL	3.7	3.9	3.5
Weighted SIGNAL	4.1	8	4.3

Waterbug Land Use

	Category	ALUM Categories	Percent of upstream catchment	Area
	Forestry	2.2.0 Production native forests, 3.1.0 Plantation forests	28.87%	31,326,791,367m²
	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, 4.4.5 Irrigated shrub berries and fruits, 4.4.7 Irrigated perennial vegetables and herbs, 4.4.9 Irrigated grapes, 4.5.0 Irrigated seasonal horticulture, 4.5.2 Irrigated seasonal flowers and bulbs	23.40%	25,391,662,447m²
	Pastoral Farming	3.2.0 Grazing modified pastures, 4.2.0 Grazing irrigated modified pastures	17.80%	19,315,292,357m²
	Minimal Use	1.3.0 Other minimal use, 1.3.3 Residual native cover, 2.1.0 Grazing native vegetation	14.60%	15,849,009,078m²
	Natural	1.1.1 Strict nature reserves, 1.1.3 National park, 1.1.7 Other conserved area	13.27%	14,405,099,355m²
	Residential And Infrastructure	5.4.0 Residential and farm infrastructure, 5.4.1 Urban residential, 5.4.2 Rural residential with agriculture, 5.5.2 Public services, 5.5.3 Recreation and culture, 5.6.5 Electricity substations and transmission, 5.7.1 Airports/aerodromes, 5.7.2 Roads	0.91%	988,688,185m²
	Water	6.1.0 Lake, 6.2.0 Reservoir/dam, 6.2.1 Reservoir, 6.2.2 Water storage - intensive use/farm dams, 6.5.0 Marsh/wetland	0.66%	714,705,315m²
	Unknown	3.6.1 Degraded land, 4.6.0 Irrigated land in transition, 4.6.5 Abandoned irrigated perennial horticulture	0.27%	296,231,479m²
	Intensive Pastoral Farming	5.2.1 Dairy sheds and yards, 5.2.2 Feedlots, 5.2.4 Piggeries, 5.2.5 Aquaculture, 5.2.6 Horse studs, 5.2.7 Saleyards/stockyards	0.18%	198,737,574m²
	Waste Management	5.9.3 Solid garbage	0.02%	16,998,937m²
	Mining	5.8.2 Quarries	0.01%	8,749,453m²
	Industrial	5.3.0 Manufacturing and industrial, 5.5.1 Commercial services	0.01%	8,499,469m²
	Intensive Arable Farming	5.1.0 Intensive horticulture, 5.1.1 Production nurseries, 5.1.2 Shadehouses	0.00%	4,499,719m²
Show minor land uses 8
				1,085,249,647m²

Waterbug sample history

Sampled on 5 November 2009

Taxa	Abundance	SIGNALT Grade
Oligochaeta LO	1	2
Oligochaeta (Unident.) LO999999	1
Amphipoda OP	144	3
Perthiidae (Unident.) OP089999	144

Unknown OT	91
Palaemonidae (Unident.) OT029999	91

Unknown OV	2
Parastacidae (Unident.) OV019999	2

Coleoptera QC	9	5
Gyrinidae (Unident.) QC109999	6

Hydrophilidae (Unident.) QC119999	3

Diptera QD	46	3
Ceratopogonidae (Unident.) QD099999	8

Simuliidae (Unident.) QD109999	6

Orthocladiinae (Unident.) QDAF9999	4
Chironominae (Unident.) QDAJ9999	27
Chironomidae (Unident.)(Larva) QDAZ9999	1
Ephemeroptera QE	1	9
Tasmanocoenis sp.(Unident.) QE080199	1
Odonata QO	6	3
Austroaeschna sp.(Unident.) QO210399	6
Trichoptera QT	3	8
Oxyethira sp.(Unident.) QT031099	1
Lectrides sp.(Unident.) QT250299	1
Oecetis sp.(Unident.) QT250799	1

SIGNALT	3.7
	ORDER
Weighted SIGNALT	3.1