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

YARRA RIVER AT DIGHTS FALLS 4927

Source	EPA Victoria
Latest Sample Date	24-02-1995
Taxa count ORDER	8
Taxa count FAMILY	12
Taxa count ALT	14
Mayflies present?	1
	ORDER	FAMILY	ALT
SIGNAL	3.4	2.9	2.1
Weighted SIGNAL	4.4	5.1	3.5

Waterbug Land Use

	Category	ALUM Categories	Percent of upstream catchment	Area
	Residential And Infrastructure	5.4.0 Residential and farm infrastructure, 5.4.1 Urban residential, 5.4.2 Rural residential with agriculture, 5.4.3 Rural residential without agriculture, 5.5.2 Public services, 5.5.3 Recreation and culture, 5.6.0 Utilities, 5.6.5 Electricity substations and transmission, 5.6.7 Water extraction and transmission, 5.7.0 Transport and communication, 5.7.1 Airports/aerodromes, 5.7.2 Roads, 5.7.3 Railways, 5.7.5 Navigation and communication	32.76%	123,143,473,734m²
	Natural	1.1.1 Strict nature reserves, 1.1.3 National park, 1.1.4 Natural feature protection, 1.1.6 Protected landscape, 1.1.7 Other conserved area	26.34%	99,003,812,005m²
	Pastoral Farming	3.2.0 Grazing modified pastures	21.01%	78,954,508,235m²
	Forestry	2.2.0 Production native forests, 2.2.1 Wood production forestry, 3.1.0 Plantation forests	12.53%	47,084,864,937m²
	Arable Farming	3.3.0 Cropping, 3.4.0 Perennial horticulture, 3.4.5 Shrub berries and fruits, 3.4.6 Perennial flowers and bulbs, 3.4.9 Grapes, 3.5.3 Seasonal vegetables and herbs	4.82%	18,102,121,388m²
	Unknown	3.6.4 No defined use, 5.8.4 Extractive industry not in use	0.56%	2,100,677,052m²
	Minimal Use	1.3.0 Other minimal use, 1.3.3 Residual native cover, 2.1.0 Grazing native vegetation	0.49%	1,859,685,421m²
	Industrial	5.3.0 Manufacturing and industrial, 5.3.1 General purpose factory, 5.3.2 Food processing factory, 5.3.3 Major industrial complex, 5.3.5 Abattoirs, 5.3.7 Sawmill, 5.5.1 Commercial services	0.35%	1,326,703,929m²
	Waste Management	5.9.0 Waste treatment and disposal, 5.9.2 Landfill, 5.9.5 Sewage/sewerage	0.32%	1,200,958,296m²
	Mining	5.8.2 Quarries	0.29%	1,080,212,489m²
	Water	6.2.0 Reservoir/dam, 6.2.1 Reservoir, 6.2.2 Water storage - intensive use/farm dams, 6.3.0 River, 6.4.1 Supply channel/aqueduct	0.25%	933,967,567m²
	Intensive Arable Farming	5.1.1 Production nurseries, 5.1.3 Glasshouses, 5.1.4 Glasshouses (hydroponic)	0.17%	631,478,071m²
	Forestry Plantation	3.1.2 Softwood plantation forestry	0.06%	231,991,944m²
	Intensive Pastoral Farming	5.2.3 Poultry farms, 5.2.4 Piggeries, 5.2.5 Aquaculture, 5.2.6 Horse studs	0.05%	197,493,142m²
Show minor land uses 9
				3,758,519,482m²

Waterbug sample history

Sampled on 24 February 1995

Taxa	Abundance	SIGNALT Grade
Turbellaria IF	12	2
Cura pinguis IF610101	12
Gastropoda KG	41	1
Hydrobiidae (Unident.) KG029999	39
Pseudosuccinea columella KG050301	1
Physa/Physastra sp. KG9999A1	1
Hirudinea LH	1	1
Hirudinea EPA sp.4 LH9999A4	1
Unknown OT	16
Paratya australiensis OT010101	16

Diptera QD	31	3
Simulium ornatipes QD100202	5

Ephydridae (Unident.) (Pupa) QD78999I	1

Cardiocladius sp.(Unident.) QDAF1499	5
Cricotopus sp.(Unident.) QDAF1599	20
Ephemeroptera QE	1	9
Unknown QE0801A5	1
Odonata QO	2	3
Ischnura sp.(Unident.) QO021099	2
Trichoptera QT	26	8
Cheumatopsyche sp.AV1 QT0605A1	17
Hydropsychidae (Unident.) QT069999	9

SIGNALT	3.4
	ORDER
Weighted SIGNALT	3.1

Sampled on 3 November 1994

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	14	1
Hydrobiidae (Unident.) KG029999	6
Gastropoda (Unident.) KG999999	1
Physa/Physastra sp. KG9999A1	7
Oligochaeta LO	14	2
Oligochaeta (Unident.) LO999999	14
Diptera QD	91	3
Cricotopus sp.(Unident.) QDAF1599	67
Dicrotendipes sp.(Unident.) QDAI0699	1
Polypedilum sp.(Unident.) QDAI0899	23

SIGNALT	2.0
	ORDER
Weighted SIGNALT	2.1