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

MERRI CREEK D/S COBURG LAKE 4633

Source	EPA Victoria
Latest Sample Date	02-11-1998
Taxa count ORDER	6
Taxa count FAMILY	8
Taxa count ALT	8
Mayflies present?	0
	ORDER	FAMILY	ALT
SIGNAL	3.2	2.9	3.1
Weighted SIGNAL	2.3		3.8

Waterbug Land Use

	Category	ALUM Categories	Percent of upstream catchment	Area
	Residential And 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, 5.7.2 Roads, 5.7.3 Railways, 5.7.5 Navigation and communication	46.76%	18,183,042,832m²
	Pastoral Farming	3.2.0 Grazing modified pastures	44.67%	17,367,858,160m²
	Waste Management	5.9.0 Waste treatment and disposal, 5.9.2 Landfill, 5.9.5 Sewage/sewerage	2.34%	910,677,019m²
	Mining	5.8.2 Quarries	1.89%	735,941,023m²
	Natural	1.1.1 Strict nature reserves, 1.1.6 Protected landscape, 1.1.7 Other conserved area	1.84%	714,942,705m²
	Industrial	5.3.0 Manufacturing and industrial, 5.3.1 General purpose factory, 5.5.1 Commercial services	1.80%	699,943,907m²
	Minimal Use	1.3.0 Other minimal use	0.34%	132,989,342m²
	Arable Farming	3.3.0 Cropping	0.27%	105,241,566m²
	Unknown	3.6.4 No defined use	0.03%	13,498,918m²
	Intensive Pastoral Farming	5.2.4 Piggeries	0.03%	9,999,199m²
	Intensive Arable Farming	5.1.1 Production nurseries	0.02%	7,999,359m²
Show minor land uses 9
				388,821,340m²

Waterbug sample history

Sampled on 2 November 1998

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	4	1
Lymnaeidae (Unident.) KG059999	1
Physidae (Unident.) KG089999	3
Oligochaeta LO	7	2
Oligochaeta (Unident.) LO999999	7
Unknown OT	6
Atyidae (Unident.) OT019999	6

Coleoptera QC	66	5
Psephenidae (Unident.) QC379999	66

Diptera QD	21	3
Simuliidae (Unident.) QD109999	1

Orthocladiinae (Unident.) QDAF9999	20
Trichoptera QT	1	8
Cheumatopsyche sp.AV2 QT0605A2	1

SIGNALT	3.2
	ORDER
Weighted SIGNALT	2.9

Sampled on 14 April 1998

Taxa	Abundance	SIGNALT Grade
Oligochaeta LO	12	2
Oligochaeta (Unident.) LO999999	12
Coleoptera QC	66	5
Psephenidae (Unident.) QC379999	66

Diptera QD	14	3
Orthocladiinae (Unident.) QDAF9999	14
Trichoptera QT	79	8
Cheumatopsyche sp.AV1 QT0605A1	17
Cheumatopsyche sp.AV2 QT0605A2	60
Ecnomus sp.(Unident.) QT080499	2

SIGNALT	4.5
	ORDER
Weighted SIGNALT	4.7

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