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

LERDERDERG RIVER AT OBRIENS CROSSING 3175

Source	EPA Victoria
Latest Sample Date	12-10-2005
Taxa count ORDER	10
Taxa count FAMILY	26
Taxa count ALT	26
Mayflies present?	26
	ORDER	FAMILY	ALT
SIGNAL	5.5	5.5	4.3
Weighted SIGNAL	6.3		6.3

Waterbug Land Use

	Category	ALUM Categories	Percent of upstream catchment	Area
	Forestry	2.2.0 Production native forests, 3.1.0 Plantation forests	71.93%	11,266,194,787m²
	Natural	1.1.1 Strict nature reserves, 1.1.4 Natural feature protection, 1.1.7 Other conserved area	17.85%	2,795,553,924m²
	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, 5.7.2 Roads	5.51%	862,535,234m²
	Pastoral Farming	3.2.0 Grazing modified pastures	3.25%	508,623,356m²
	Arable Farming	3.3.0 Cropping	0.86%	134,466,519m²
	Industrial	5.5.1 Commercial services	0.35%	55,236,247m²
	Unknown	3.6.4 No defined use	0.19%	29,742,594m²
	Intensive Arable Farming	5.1.1 Production nurseries	0.04%	5,998,506m²
	Forestry Plantation	3.1.1 Hardwood plantation forestry	0.02%	2,499,378m²
	Water	6.2.1 Reservoir	0.01%	1,499,627m²
Show minor land uses 6
				156,623,502m²

Waterbug sample history

Sampled on 12 October 2005

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	2	1
Lymnaeidae (Unident.) KG059999	2
Oligochaeta LO	7	2
Oligochaeta (Unident.) LO999999	7
Acarina MM	2	6
Mites (Unident.) MM999999	2

Amphipoda OP	3	3
Ceinidae (Unident.) OP029999	3

Coleoptera QC	14	5
Scirtidae (Unident.) QC209999	1

Psephenidae (Unident.) QC379999	8

Coleoptera (Unident.)(Larva) QCZZ999I	5

Diptera QD	36	3
Tipulidae (Unident.) QD019999	1
Ceratopogonidae (Unident.) QD099999	8

Simuliidae (Unident.) QD109999	2

Diamesinae (Unident.) QDAB9999	1
Tanypodinae (Unident.) QDAE9999	5
Orthocladiinae (Unident.) QDAF9999	14
Chironominae (Unident.) QDAJ9999	3
Chironomidae (Unident.) (Pupa) QDAZ999I	2
Ephemeroptera QE	26	9
Baetidae (Unident.) QE029999	3
Leptophlebiidae (Unident.) QE069999	23
Megaloptera QM	1	8
Corydalidae (Unident.) QM019999	1

Plecoptera QP	21	10
Gripopterygidae (Unident.) QP039999	21
Trichoptera QT	45	8
Hydrobiosidae (Unident.) QT019999	12
Glossosomatidae (Unident.) QT029999	9
Polycentropodidae (Unident.) QT079999	1
Ecnomidae (Unident.) QT089999	1
Helicopsychidae (Unident.) QT179999	18
Philorheithridae (Unident.) QT219999	2
Calamoceratidae (Unident.) QT249999	2

SIGNALT	5.5
	ORDER
Weighted SIGNALT	6.2

Sampled on 8 October 1999

Taxa	Abundance	SIGNALT Grade
Oligochaeta LO	5	2
Oligochaeta (Unident.) LO999999	5
Amphipoda OP	3	3
Austrochiltonia sp.(Unident.) OP020199	3

Coleoptera QC	2	5
Austrolimnius sp.(Unident.) QC340199	2

Diptera QD	39	3
Tipulidae (Unident.) QD019999	1
Ceratopogonidae EPA sp.13 QD0999B4	2

Austrosimulium victoriae QD100105	1

Paracnephia umbratorum QD100301	2

Simuliidae (Unident.) QD109999	1

Tabanidae EPA sp.1 QD2399A1	4
Podonomopsis sp.(Unident.) QDAD0499	17
Pentaneurini genus A QDAE99A1	1
Thienemanniella sp.(Unident.) QDAF0799	1
Eukiefferiella sp.(Unident.) QDAF1399	1
Cricotopus sp.(Unident.) QDAF1599	4
Rheotanytarsus sp.(Unident.) QDAH0799	1
Polypedilum sp.(Unident.) QDAI0899	1
Chironomidae (Unident.) (Pupa) QDAZ999I	2
Ephemeroptera QE	25	9
Nousia sp.AV1 QE0608A1	2
Leptophlebiidae (Unident.) QE069999	23
Megaloptera QM	7	8
Archichauliodes sp.(Unident.) QM010199	7

Odonata QO	1	3
Austroaeschna sp.(Unident.) QO210399	1
Plecoptera QP	105	10
Dinotoperla serricauda / thwaitesi QP0302A2	1
Illiesoperla sp.(Unident.) QP030599	51
Leptoperla primitiva QP030706	3
Riekoperla tuberculata QP031117	5
Riekoperla sp.(Unident.) QP031199	13
Riekoperla rugosa group QP0311A3	19
Trinotoperla montana QP031203	12
Austrocercella / Austrocercoides sp.(Unident.) QP0499A1	1
Trichoptera QT	25	8
Apsilochorema obliquum QT010302	1
Taschorema evansi QT011301	6
Agapetus sp.(Unident.) QT020199	17
Notalina spira QT250504	1

SIGNALT	5.7
	ORDER
Weighted SIGNALT	6.6

Sampled on 14 March 1996

Taxa	Abundance	SIGNALT Grade
Oligochaeta LO	1	2
Oligochaeta (Unident.) LO999999	1
Unknown OT	8
Paratya australiensis OT010101	8

Diptera QD	23	3
Austrosimulium furiosum QD100102	18

Podonomopsis sp.(Unident.) QDAD0499	1
Paramerina sp.(Unident.) QDAE1299	3
Polypedilum sp.(Unident.) QDAI0899	1
Ephemeroptera QE	73	9
Baetis EPA sp.6 QE0201A6	48
Nousia sp.AV1 QE0608A1	23
Nousia sp.AV2 QE0608A2	2
Hemiptera QH	3	2
Gerridae EPA sp.1 QH5799A1	3
Megaloptera QM	7	8
Archichauliodes sp.(Unident.) QM010199	7

Plecoptera QP	9	10
Illiesoperla sp.(Unident.) QP030599	8
Leptoperla neboissi QP030705	1
Trichoptera QT	5	8
Taschorema evansi QT011301	5

SIGNALT	5.2
	ORDER
Weighted SIGNALT	5.7

Sampled on 7 December 1995

Taxa	Abundance	SIGNALT Grade
Oligochaeta LO	3	2
Oligochaeta (Unident.) LO999999	3
Coleoptera QC	2	5
Austrolimnius sp.(Unident.) QC340199	2

Diptera QD	32	3
Tipulidae EPA sp.15 QD0199C7	1
Austrosimulium furiosum QD100102	4

Austrosimulium victoriae QD100105	8

Paramerina sp.(Unident.) QDAE1299	1
Cardiocladius sp.(Unident.) QDAF1499	8
Cricotopus/Paratrichocladius QDAF99A8	7
Rheotanytarsus sp.(Unident.) QDAH0799	3
Ephemeroptera QE	46	9
Nousia sp.AV1 QE0608A1	44
Nousia sp.AV2 QE0608A2	2
Megaloptera QM	2	8
Archichauliodes sp.(Unident.) QM010199	2

Odonata QO	1	3
Austroaeschna pulchra QO210306	1
Plecoptera QP	49	10
Dinotoperla serricauda QP030207	2
Illiesoperla sp.(Unident.) QP030599	24
Riekoperla sp.(Unident.) QP031199	13
Trinotoperla irrorata QP031201	10
Trichoptera QT	8	8
Ethochorema hesperium QT010502	1
Agapetus sp.(Unident.) QT020199	1
Helicopsyche heacota QT170103	6

SIGNALT	6.0
	ORDER
Weighted SIGNALT	6.7

Sampled on 7 December 1994

Taxa	Abundance	SIGNALT Grade
Turbellaria IF	2	2
Dugesiidae (Unident.) IF619999	2
Gastropoda KG	2	1
Hydrobiidae (Unident.) KG029999	2
Acarina MM	25	6
Mites (Unident.) MM999999	25

Unknown OT	2
Paratya australiensis OT010101	2

Coleoptera QC	9	5
Austrolimnius sp.(Unident.) QC340199	8

Unknown QC37010D	1
Diptera QD	95	3
Tipulidae EPA sp.36 QD0199A1	1
Tipulidae EPA sp.15 QD0199C7	1
Ceratopogonidae EPA sp.28 QD0999E9	2

Austrosimulium furiosum QD100102	5

Austrosimulium sp.(Unident.) QD100199	5

Simuliidae (Unident.) QD109999	2

Paramerina sp.(Unident.) QDAE1299	4
Parakiefferiella sp.(Unident.) QDAF0399	1
Thienemanniella sp.(Unident.) QDAF0799	4
Cricotopus/Paratrichocladius QDAF99A8	29
Tanytarsus sp.(Unident.) QDAH0499	6
Rheotanytarsus sp.(Unident.) QDAH0799	28
Polypedilum sp.(Unident.) QDAI0899	1
Chironomidae (Unident.)(Larva) QDAZ9999	1
Chironomidae (Unident.) (Pupa) QDAZ999I	5
Ephemeroptera QE	110	9
Baetis sp.(Unident.) QE020199	12
Baetidae MV/EPA sp.5 QE0201A5	36
Austrophlebioides marchanti QE060502	8
Nousia sp.AV1 QE0608A1	42
Leptophlebiidae (Unident.) QE069999	11
Ephemeroptera (Unident.) QE999999	1
Hemiptera QH	1	2
Veliidae (Unident.) QH569999	1
Megaloptera QM	9	8
Archichauliodes sp.(Unident.) QM010199	9

Odonata QO	14	3
Austroaeschna pulchra QO210306	14
Plecoptera QP	8	10
Dinotoperla fontana QP030206	4
Dinotoperla serricauda QP030207	1
Illiesoperla sp.(Unident.) QP030599	3
Trichoptera QT	44	8
Apsilochorema gisbum QT010301	1
Apsilochorema obliquum QT010302	2
Apsilochorema sp.(Unident.) QT010399	3
Taschorema evansi QT011301	6
Ulmerochorema lentum QT011401	2
Ulmerochorema rubiconum / membrum group QT0114A1	2
Orthotrichia sp.(Unident.) QT030999	1
Hydroptilidae (Unident.) QT039999	1
Philopotamidae (Unident.) QT049999	5
Cheumatopsyche sp.AV1 QT0605A1	2
Conoesucus sp.(Unident.) QT150299	1
Conoesucidae (Unident.) QT159999	1
Philorheithridae (Unident.) QT219999	2
Condocerus paludosus QT250101	2
Notalina fulva QT250502	13

SIGNALT	4.8
	ORDER
Weighted SIGNALT	5.8