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

LEIGH RIVER (YARROWEE RIVER) AT BRIDGE 1KM SOUTH OF DURHAM LEAD 3320

Source	EPA Victoria
Latest Sample Date	20-04-2005
Taxa count ORDER	10
Taxa count FAMILY	15
Taxa count ALT	15
Mayflies present?	14
	ORDER	FAMILY	ALT
SIGNAL	3.5	4.1	3.9
Weighted SIGNAL	5.3		4.3

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, 5.7.2 Roads, 5.7.3 Railways, 5.7.5 Navigation and communication	49.55%	18,816,345,234m²
	Pastoral Farming	3.2.0 Grazing modified pastures	24.68%	9,372,296,482m²
	Forestry	2.2.0 Production native forests, 3.1.0 Plantation forests	7.35%	2,789,588,246m²
	Arable Farming	3.3.0 Cropping, 3.3.1 Cereals, 3.5.3 Seasonal vegetables and herbs	6.85%	2,602,082,314m²
	Natural	1.1.1 Strict nature reserves, 1.1.4 Natural feature protection, 1.1.7 Other conserved area	4.72%	1,793,556,737m²
	Forestry Plantation	3.1.1 Hardwood plantation forestry, 3.1.2 Softwood plantation forestry	4.05%	1,536,548,607m²
	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, 5.3.7 Sawmill, 5.5.1 Commercial services	0.87%	332,260,511m²
	Unknown	3.6.4 No defined use, 5.8.4 Extractive industry not in use	0.71%	267,758,470m²
	Mining	5.8.0 Mining, 5.8.2 Quarries	0.51%	194,256,145m²
	Minimal Use	1.3.0 Other minimal use	0.40%	152,754,832m²
	Water	6.1.0 Lake, 6.2.1 Reservoir, 6.4.0 Channel/aqueduct	0.20%	74,252,349m²
	Waste Management	5.9.2 Landfill, 5.9.5 Sewage/sewerage	0.08%	31,500,996m²
	Intensive Arable Farming	5.1.1 Production nurseries	0.02%	8,500,269m²
	Intensive Pastoral Farming	5.2.3 Poultry farms	0.01%	4,000,127m²
Show minor land uses 8
				379,757,013m²

Waterbug sample history

Sampled on 20 April 2005

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	30	1
Hydrobiidae (Unident.) KG029999	30
Bivalvia KP	2	3
Corbiculidae (Unident.) KP029999	2
Hirudinea LH	6	1
Glossiphoniidae (Unident.) LH019999	6
Oligochaeta LO	12	2
Oligochaeta (Unident.) LO999999	12
Amphipoda OP	42	3
Ceinidae (Unident.) OP029999	42

Unknown OX	29
Hymenostomatidae (Unident.) OX019999	29

Coleoptera QC	61	5
Elmidae (Unident.) QC349999	1

Psephenidae (Unident.) QC379999	60

Diptera QD	26	3
Simuliidae (Unident.) QD109999	1

Orthocladiinae (Unident.) QDAF9999	22
Chironominae (Unident.) QDAJ9999	3
Ephemeroptera QE	14	9
Baetidae (Unident.) QE029999	14
Trichoptera QT	51	8
Hydrobiosidae (Unident.) QT019999	20
Hydroptilidae (Unident.) QT039999	1
Hydropsychidae (Unident.) QT069999	30

SIGNALT	3.5
	ORDER
Weighted SIGNALT	3.6

Sampled on 12 October 2004

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	45	1
Hydrobiidae (Unident.) KG029999	45
Bivalvia KP	1	3
Corbiculidae (Unident.) KP029999	1
Hirudinea LH	1	1
Glossiphoniidae (Unident.) LH019999	1
Oligochaeta LO	19	2
Oligochaeta (Unident.) LO999999	19
Amphipoda OP	51	3
Ceinidae (Unident.) OP029999	51

Unknown OX	16
Hymenostomatidae (Unident.) OX019999	16

Coleoptera QC	62	5
Elmidae (Unident.) QC349999	2

Elmidae (Unident.)(Larvae) QC34999I	2

Psephenidae (Unident.) QC379999	58

Diptera QD	45	3
Simuliidae (Unident.) QD109999	1

Orthocladiinae (Unident.) QDAF9999	39
Chironominae (Unident.) QDAJ9999	4
Diptera (Unident.) (Pupa) QDZZ999I	1
Ephemeroptera QE	2	9
Baetidae (Unident.) QE029999	2
Trichoptera QT	13	8
Hydrobiosidae (Unident.) QT019999	2
Hydropsychidae (Unident.) QT069999	11

SIGNALT	3.5
	ORDER
Weighted SIGNALT	3.2

Sampled on 21 October 1997

Taxa	Abundance	SIGNALT Grade
Turbellaria IF	1	2
Dugesiidae (Unident.) IF619999	1
Gastropoda KG	102	1
Hydrobiidae (Unident.) KG029999	99
Planorbidae (Unident.) KG079999	2
Physidae (Unident.) KG089999	1
Bivalvia KP	7	3
Corbiculidae (Unident.) KP029999	7
Hirudinea LH	3	1
Hirudinea (Unident.) LH999999	3
Oligochaeta LO	100	2
Oligochaeta (Unident.) LO999999	100
Acarina MM	1	6
Mites (Unident.) MM999999	1

Amphipoda OP	24	3
Ceinidae (Unident.) OP029999	24

Unknown OX	5
Hymenostomatidae (Unident.) OX019999	5

Coleoptera QC	16	5
Psephenidae (Unident.) QC379999	16

Diptera QD	167	3
Simuliidae (Unident.) QD109999	2

Psychodidae (Unident.) QD129999	1

Orthocladiinae (Unident.) QDAF9999	162
Chironomidae (Unident.) (Pupa) QDAZ999I	2
Odonata QO	1	3
Telephlebiidae (Unident.) QO219999	1
Trichoptera QT	50	8
Hydropsychidae (Unident.) QT069999	47
Hydropsychidae (Unident.) (Pupa) QT06999I	3

SIGNALT	3.1
	ORDER
Weighted SIGNALT	3.3

Sampled on 22 April 1997

Taxa	Abundance	SIGNALT Grade
Turbellaria IF	16	2
Dugesiidae (Unident.) IF619999	16
Gastropoda KG	63	1
Hydrobiidae (Unident.) KG029999	47
Planorbidae (Unident.) KG079999	2
Physidae (Unident.) KG089999	14
Bivalvia KP	8	3
Corbiculidae (Unident.) KP029999	8
Hirudinea LH	3	1
Hirudinea (Unident.) LH999999	3
Oligochaeta LO	2	2
Oligochaeta (Unident.) LO999999	2
Amphipoda OP	27	3
Ceinidae (Unident.) OP029999	27

Unknown OX	1
Hymenostomatidae (Unident.) OX019999	1

Coleoptera QC	59	5
Elmidae (Unident.) QC349999	1

Psephenidae (Unident.) QC379999	58

Diptera QD	93	3
Simuliidae (Unident.) QD109999	28

Orthocladiinae (Unident.) QDAF9999	62
Chironominae (Unident.) QDAJ9999	3
Ephemeroptera QE	3	9
Baetidae (Unident.) QE029999	3
Trichoptera QT	117	8
Hydrobiosidae (Unident.) QT019999	2
Hydroptilidae (Unident.) QT039999	1
Hydropsychidae (Unident.) QT069999	114

SIGNALT	3.4
	ORDER
Weighted SIGNALT	3.7