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

Yarra River @ Tarrawarra Road YAR1770

Source	Melbourne Water
Latest Sample Date	30-11-2012
Taxa count ORDER	11
Taxa count FAMILY	28
Taxa count ALT	28
Mayflies present?	68
	ORDER	FAMILY	ALT
SIGNAL	4.5	4.3	3.2
Weighted SIGNAL	4.2		4.2

Waterbug Land Use

	Category	ALUM Categories	Percent of upstream catchment	Area
	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	41.75%	77,583,269,083m²
	Forestry	2.2.0 Production native forests, 3.1.0 Plantation forests	23.22%	43,147,204,472m²
	Pastoral Farming	3.2.0 Grazing modified pastures	14.56%	27,051,907,972m²
	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, 5.6.7 Water extraction and transmission, 5.7.0 Transport and communication, 5.7.2 Roads, 5.7.5 Navigation and communication	14.07%	26,157,919,275m²
	Arable Farming	3.3.0 Cropping, 3.4.0 Perennial horticulture, 3.4.6 Perennial flowers and bulbs, 3.4.9 Grapes, 3.5.3 Seasonal vegetables and herbs	5.25%	9,752,376,697m²
	Minimal Use	1.3.0 Other minimal use	0.36%	669,741,532m²
	Intensive Arable Farming	5.1.1 Production nurseries	0.26%	490,243,802m²
	Unknown	3.6.4 No defined use	0.25%	460,244,181m²
	Industrial	5.3.0 Manufacturing and industrial, 5.3.1 General purpose factory, 5.3.7 Sawmill, 5.5.1 Commercial services	0.09%	158,247,999m²
	Waste Management	5.9.0 Waste treatment and disposal, 5.9.2 Landfill, 5.9.5 Sewage/sewerage	0.07%	132,498,325m²
	Mining	5.8.2 Quarries	0.05%	89,748,865m²
	Intensive Pastoral Farming	5.2.3 Poultry farms, 5.2.5 Aquaculture, 5.2.6 Horse studs	0.05%	84,248,935m²
	Water	6.2.1 Reservoir, 6.3.0 River, 6.4.1 Supply channel/aqueduct	0.04%	70,499,109m²
Show minor land uses 8
				1,858,481,502m²

Waterbug sample history

Sampled on 30 November 2012

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	2	1
Physidae (Unident.) KG089999	2
Oligochaeta LO	12	2
Oligochaeta (Unident.) LO999999	12
Acarina MM	2	6
Mites (Unident.) MM999999	2

Unknown OT	10
Atyidae (Unident.) OT019999	10

Coleoptera QC	10	5
Hydraenidae (Unident.) QC139999	6

Scirtidae (Unident.)(Larva) QC20999I	1

Elmidae (Unident.)(Larvae) QC34999I	3

Diptera QD	60	3
Tipulidae (Unident.) QD019999	6
Simuliidae (Unident.) QD109999	5

Empididae (Unident.) QD359999	1
Muscidae (Unident.) QD899999	1
Orthocladiinae (Unident.) QDAF9999	24
Chironominae (Unident.) QDAJ9999	23
Ephemeroptera QE	68	9
Baetidae (Unident.) QE029999	65
Oniscigastridae (Unident.) QE039999	2
Leptophlebiidae (Unident.) QE069999	1
Hemiptera QH	84	2
Hebridae (Unident.) QH539999	1
Veliidae (Unident.) QH569999	19
Gerridae (Unident.) QH579999	2
Saldidae (Unident.) QH609999	5
Corixidae (Unident.) QH659999	55
Notonectidae (Unident.) QH679999	2
Odonata QO	2	3
Coenagrionidae (Unident.) QO029999	1
Telephlebiidae (Unident.) QO219999	1
Plecoptera QP	1	10
Gripopterygidae (Unident.) QP039999	1
Trichoptera QT	4	8
Hydropsychidae (Unident.) QT069999	1
Leptoceridae (Unident.) QT259999	2
Trichoptera (Unident.) QT999999	1

SIGNALT	4.5
	ORDER
Weighted SIGNALT	4.2

Sampled on 3 April 2012

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	3	1
Planorbidae/Physidae (Unident.) KG9999A2	3
Bivalvia KP	3	3
Pelecypoda (Unident.) KP999999	3
Oligochaeta LO	133	2
Oligochaeta (Unident.) LO999999	133
Acarina MM	3	6
Mites (Unident.) MM999999	3

Unknown OT	26
Atyidae (Unident.) OT019999	26

Coleoptera QC	20	5
Hydraenidae (Unident.) QC139999	3

Elmidae (Unident.)(Larvae) QC34999I	17

Diptera QD	156	3
Simuliidae (Unident.) QD109999	7

Empididae (Unident.) QD359999	10
Tanypodinae (Unident.) QDAE9999	13
Orthocladiinae (Unident.) QDAF9999	53
Chironominae (Unident.) QDAJ9999	70
Chironomidae (Unident.)(Larva) QDAZ9999	3
Ephemeroptera QE	47	9
Baetidae (Unident.) QE029999	20
Coloburiscidae (Unident.) QE059999	13
Leptophlebiidae (Unident.) QE069999	7
Caenidae (Unident.) QE089999	7
Hemiptera QH	686	2
Corixidae (Unident.) QH659999	683
Notonectidae (Unident.) QH679999	3
Odonata QO	6	3
Telephlebiidae (Unident.) QO219999	3
Zygoptera (Unident.) QO999997	3
Plecoptera QP	80	10
Gripopterygidae (Unident.) QP039999	73
Plecoptera (Unident.) QP999999	7
Trichoptera QT	69	8
Hydrobiosidae (Unident.) QT019999	3
Hydropsychidae (Unident.) QT069999	43
Ecnomidae (Unident.) QT089999	13
Leptoceridae (Unident.) QT259999	10

SIGNALT	4.3
	ORDER
Weighted SIGNALT	4.6

Sampled on 21 September 2011

Taxa	Abundance	SIGNALT Grade
Oligochaeta LO	83	2
Naididae (Unident.) LO059999	81
Oligochaeta (Unident.) LO999999	2
Acarina MM	5	6
Mites (Unident.) MM999999	5

Unknown OT	6
Atyidae (Unident.) OT019999	6

Coleoptera QC	6	5
Hydrophilidae (Unident.) QC119999	6

Diptera QD	142	3
Tipulidae (Unident.) QD019999	8
Ceratopogonidae (Unident.) QD099999	4

Psychodidae (Unident.) QD129999	96

Aphroteniinae (Unident.) QDAA9999	2
Tanypodinae (Unident.) QDAE9999	2
Orthocladiinae (Unident.) QDAF9999	5
Chironominae (Unident.) QDAJ9999	25
Ephemeroptera QE	72	9
Baetidae (Unident.) QE029999	56
Oniscigastridae (Unident.) QE039999	12
Leptophlebiidae (Unident.) QE069999	2
Ephemeroptera (Unident.) QE999999	2
Hemiptera QH	229	2
Veliidae (Unident.) QH569999	13
Corixidae (Unident.) QH659999	216
Plecoptera QP	2	10
Gripopterygidae (Unident.) QP039999	2
Trichoptera QT	6	8
Calamoceratidae (Unident.) QT249999	3
Trichoptera (Unident.) QT999999	3

SIGNALT	5.0
	ORDER
Weighted SIGNALT	4.4

Sampled on 21 April 2011

Taxa	Abundance	SIGNALT Grade
Turbellaria IF	3	2
Dugesiidae (Unident.) IF619999	3
Unknown IH	3
Nemertea (Unident.) IH999999	3
Oligochaeta LO	349	2
Naididae (Unident.) LO059999	226
Lumbriculidae (Unident.) LO069999	3
Oligochaeta (Unident.) LO999999	120
Acarina MM	20	6
Mites (Unident.) MM999999	20

Amphipoda OP	12	3
Ceinidae (Unident.) OP029999	9

Paramelitidae (Unident.) OP069999	3

Unknown OT	14
Atyidae (Unident.) OT019999	14

Coleoptera QC	19	5
Hydraenidae (Unident.) QC139999	3

Elmidae (Unident.)(Larvae) QC34999I	10

Psephenidae (Unident.) QC379999	6

Diptera QD	333	3
Tipulidae (Unident.) QD019999	7
Culicidae (Unident.) QD079999	34

Ceratopogonidae (Unident.) QD099999	6

Simuliidae (Unident.) QD109999	7

Stratiomyidae (Unident.) QD249999	3
Empididae (Unident.) QD359999	20
Tanypodinae (Unident.) QDAE9999	90
Orthocladiinae (Unident.) QDAF9999	63
Chironominae (Unident.) QDAJ9999	93
Chironomidae (Unident.)(Larva) QDAZ9999	10
Ephemeroptera QE	109	9
Baetidae (Unident.) QE029999	3
Oniscigastridae (Unident.) QE039999	3
Leptophlebiidae (Unident.) QE069999	53
Caenidae (Unident.) QE089999	23
Ephemeroptera (Unident.) QE999999	27
Hemiptera QH	460	2
Veliidae (Unident.) QH569999	27
Corixidae (Unident.) QH659999	433
Lepidoptera QL	17	2
Crambidae (Unident.) QL019999	10

Lepidoptera (Unident.) QL999999	7

Odonata QO	13	3
Coenagrionidae (Unident.) QO029999	13
Plecoptera QP	74	10
Gripopterygidae (Unident.) QP039999	47
Plecoptera (Unident.) QP999999	27
Trichoptera QT	50	8
Hydrobiosidae (Unident.) QT019999	3
Atriplectididae (Unident.) QT239999	3
Leptoceridae (Unident.) QT259999	17
Trichoptera (Unident.) QT999999	27

SIGNALT	3.9
	ORDER
Weighted SIGNALT	4.3

Sampled on 1 December 2009

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	30	1
Physidae (Unident.) KG089999	20
Planorbidae/Physidae (Unident.) KG9999A2	10
Bivalvia KP	10	3
Pelecypoda (Unident.) KP999999	10
Oligochaeta LO	630	2
Oligochaeta (Unident.) LO999999	630
Acarina MM	20	6
Mites (Unident.) MM999999	20

Unknown OT	140
Atyidae (Unident.) OT019999	140

Coleoptera QC	50	5
Elmidae (Unident.)(Larvae) QC34999I	10

Brentidae (Unident.) QCAM9999	40
Diptera QD	530	3
Tipulidae (Unident.) QD019999	30
Ceratopogonidae (Unident.) QD099999	20

Simuliidae (Unident.) QD109999	80

Psychodidae (Unident.) QD129999	10

Muscidae (Unident.) QD899999	10
Tanypodinae (Unident.) QDAE9999	50
Orthocladiinae (Unident.) QDAF9999	110
Chironominae (Unident.) QDAJ9999	220
Ephemeroptera QE	1330	9
Baetidae (Unident.) QE029999	1230
Leptophlebiidae (Unident.) QE069999	10
Caenidae (Unident.) QE089999	90
Hemiptera QH	250	2
Veliidae (Unident.) QH569999	170
Corixidae (Unident.) QH659999	70
Notonectidae (Unident.) QH679999	10
Plecoptera QP	30	10
Gripopterygidae (Unident.) QP039999	30
Trichoptera QT	190	8
Ecnomidae (Unident.) QT089999	10
Leptoceridae (Unident.) QT259999	60
Trichoptera (Unident.) QT999999	120

SIGNALT	4.5
	ORDER
Weighted SIGNALT	4.5

Sampled on 28 April 2009

Taxa	Abundance	SIGNALT Grade
Turbellaria IF	4	2
Dugesiidae (Unident.) IF619999	4
Gastropoda KG	88	1
Physidae (Unident.) KG089999	88
Bivalvia KP	47	3
Sphaeriidae (Unident.) KP039999	40
Pelecypoda (Unident.) KP999999	7
Hirudinea LH	7	1
Glossiphoniidae (Unident.) LH019999	7
Oligochaeta LO	179	2
Naididae (Unident.) LO059999	175
Lumbriculidae (Unident.) LO069999	4
Acarina MM	12	6
Mites (Unident.) MM999999	12

Unknown OT	104
Atyidae (Unident.) OT019999	104

Coleoptera QC	59	5
Hydraenidae (Unident.) QC139999	12

Elmidae (Unident.)(Larvae) QC34999I	47

Diptera QD	969	3
Tipulidae (Unident.) QD019999	16
Ceratopogonidae (Unident.) QD099999	66

Simuliidae (Unident.) QD109999	19

Psychodidae (Unident.) QD129999	4

Empididae (Unident.) QD359999	7
Tanypodinae (Unident.) QDAE9999	13
Orthocladiinae (Unident.) QDAF9999	163
Chironominae (Unident.) QDAJ9999	681
Ephemeroptera QE	2320	9
Baetidae (Unident.) QE029999	513
Leptophlebiidae (Unident.) QE069999	7
Caenidae (Unident.) QE089999	1764
Ephemeroptera (Unident.) QE999999	36
Hemiptera QH	136	2
Veliidae (Unident.) QH569999	20
Corixidae (Unident.) QH659999	116
Lepidoptera QL	12	2
Crambidae (Unident.) QL019999	12

Odonata QO	13	3
Epiproctophora (Unident.) QO999998	13
Plecoptera QP	72	10
Gripopterygidae (Unident.) QP039999	72
Trichoptera QT	447	8
Hydrobiosidae (Unident.) QT019999	13
Hydropsychidae (Unident.) QT069999	61
Ecnomidae (Unident.) QT089999	40
Calamoceratidae (Unident.) QT249999	7
Leptoceridae (Unident.) QT259999	303
Trichoptera (Unident.) QT999999	23

SIGNALT	3.8
	ORDER
Weighted SIGNALT	4.0

Sampled on 3 December 2008

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	52	1
Hydrobiidae (Unident.) KG029999	2
Physidae (Unident.) KG089999	50
Bivalvia KP	10	3
Sphaeriidae (Unident.) KP039999	10
Oligochaeta LO	740	2
Naididae (Unident.) LO059999	560
Lumbriculidae (Unident.) LO069999	170
Oligochaeta (Unident.) LO999999	10
Unknown OT	40
Atyidae (Unident.) OT019999	20

Caridea (Unident.) OT999999	20

Diptera QD	1495	3
Tipulidae (Unident.) QD019999	1
Simuliidae (Unident.) QD109999	10

Tanypodinae (Unident.) QDAE9999	671
Orthocladiinae (Unident.) QDAF9999	171
Chironominae (Unident.) QDAJ9999	642
Ephemeroptera QE	290	9
Baetidae (Unident.) QE029999	70
Caenidae (Unident.) QE089999	220
Hemiptera QH	130	2
Veliidae (Unident.) QH569999	20
Corixidae (Unident.) QH659999	110
Trichoptera QT	40	8
Leptoceridae (Unident.) QT259999	40

SIGNALT	3.5
	ORDER
Weighted SIGNALT	3.5

Sampled on 7 May 2008

Taxa	Abundance	SIGNALT Grade
Turbellaria IF	21	2
Dugesiidae (Unident.) IF619999	21
Gastropoda KG	162	1
Planorbidae (Unident.) KG079999	42
Physidae KG080000	92
Planorbidae/Physidae (Unident.) KG9999A2	28
Oligochaeta LO	135	2
Oligochaeta (Unident.) LO999999	135
Acarina MM	7	6
Mites (Unident.) MM999999	7

Unknown OT	828
Atyidae (Unident.) OT019999	828

Coleoptera QC	7	5
Dytiscidae (Unident.) QC099999	7
Diptera QD	312	3
Tanypodinae (Unident.) QDAE9999	28
Orthocladiinae (Unident.) QDAF9999	199
Chironominae (Unident.) QDAJ9999	85
Ephemeroptera QE	341	9
Baetidae (Unident.) QE029999	214
Leptophlebiidae (Unident.) QE069999	28
Caenidae (Unident.) QE089999	85
Ephemeroptera (Unident.) QE999999	14
Hemiptera QH	342	2
Corixidae (Unident.) QH659999	342
Plecoptera QP	149	10
Gripopterygidae (Unident.) QP039999	135
Plecoptera (Unident.) QP999999	14
Trichoptera QT	412	8
Hydroptilidae (Unident.) QT039999	14
Ecnomidae (Unident.) QT089999	14
Calamoceratidae (Unident.) QT249999	7
Leptoceridae (Unident.) QT259999	335
Trichoptera (Unident.) QT999999	42

SIGNALT	4.4
	ORDER
Weighted SIGNALT	4.3

Sampled on 5 November 1998

Taxa	Abundance	SIGNALT Grade
Turbellaria IF	1	2
Dugesiidae (Unident.) IF619999	1
Unknown OT	34
Atyidae (Unident.) OT019999	34

Diptera QD	11	3
Tanypodinae (Unident.) QDAE9999	1
Orthocladiinae (Unident.) QDAF9999	3
Chironominae (Unident.) QDAJ9999	7
Ephemeroptera QE	17	9
Oniscigastridae (Unident.) QE039999	3
Leptophlebiidae (Unident.) QE069999	3
Caenidae (Unident.) QE089999	11
Hemiptera QH	29	2
Veliidae (Unident.) QH569999	9
Corixidae (Unident.) QH659999	18
Notonectidae (Unident.) QH679999	2
Plecoptera QP	1	10
Gripopterygidae (Unident.) QP039999	1
Trichoptera QT	7	8
Ecnomidae (Unident.) QT089999	4
Leptoceridae (Unident.) QT259999	3

SIGNALT	4.9
	ORDER
Weighted SIGNALT	4.1

Sampled on 15 April 1998

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	1	1
Physidae (Unident.) KG089999	1
Unknown OT	14
Atyidae (Unident.) OT019999	14

Coleoptera QC	3	5
Hydrophilidae (Unident.)(Larva) QC11999I	1

Hydraenidae (Unident.) QC139999	1

Elmidae (Unident.) QC349999	1

Diptera QD	8	3
Orthocladiinae (Unident.) QDAF9999	6
Chironominae (Unident.) QDAJ9999	2
Hemiptera QH	65	2
Veliidae (Unident.) QH569999	7
Gerridae (Unident.) QH579999	6
Corixidae (Unident.) QH659999	48
Notonectidae (Unident.) QH679999	4
Trichoptera QT	22	8
Leptoceridae (Unident.) QT259999	22

SIGNALT	3.2
	ORDER
Weighted SIGNALT	3.5