Explore

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

LEIGH RIVER (YARROWEE RIVER) AT BRIDGE 5KM EAST OF MT MERCER 3322

Source	EPA Victoria
Latest Sample Date	21-03-2011
Taxa count ORDER	8
Taxa count FAMILY	15
Taxa count ALT	16
Mayflies present?	30
	ORDER	FAMILY	ALT
SIGNAL	4.1	4.3	3.5
Weighted SIGNAL	5.1	5	5.3

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	36.44%	22,349,831,883m²
	Pastoral Farming	3.2.0 Grazing modified pastures	35.59%	21,829,527,596m²
	Forestry	2.2.0 Production native forests, 3.1.0 Plantation forests	7.99%	4,901,261,376m²
	Arable Farming	3.3.0 Cropping, 3.3.1 Cereals, 3.4.9 Grapes, 3.5.3 Seasonal vegetables and herbs	6.88%	4,217,690,055m²
	Forestry Plantation	3.1.1 Hardwood plantation forestry, 3.1.2 Softwood plantation forestry	5.73%	3,513,866,621m²
	Natural	1.1.1 Strict nature reserves, 1.1.4 Natural feature protection, 1.1.7 Other conserved area	4.11%	2,520,512,979m²
	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	1.27%	778,581,234m²
	Minimal Use	1.3.0 Other minimal use	0.84%	513,553,582m²
	Unknown	3.6.4 No defined use, 5.8.4 Extractive industry not in use	0.63%	386,290,304m²
	Mining	5.8.0 Mining, 5.8.2 Quarries	0.32%	198,770,739m²
	Water	6.1.0 Lake, 6.2.1 Reservoir, 6.4.0 Channel/aqueduct	0.12%	74,257,748m²
	Waste Management	5.9.2 Landfill, 5.9.5 Sewage/sewerage	0.05%	31,503,287m²
	Intensive Arable Farming	5.1.1 Production nurseries	0.01%	8,500,887m²
	Intensive Pastoral Farming	5.2.3 Poultry farms	0.01%	4,000,417m²
Show minor land uses 8
				613,281,487m²

Waterbug sample history

Sampled on 21 March 2011

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	2	1
Hydrobiidae (Unident.) KG029999	1
Physidae (Unident.) KG089999	1
Oligochaeta LO	3	2
Oligochaeta (Unident.) LO999999	3
Amphipoda OP	9	3
Ceinidae (Unident.) OP029999	9

Coleoptera QC	33	5
Elmidae (Unident.) QC349999	12

Elmidae (Unident.)(Larvae) QC34999I	7

Psephenidae (Unident.) QC379999	14

Diptera QD	54	3
Simuliidae (Unident.) QD109999	11

Tanypodinae (Unident.) QDAE9999	1
Orthocladiinae (Unident.) QDAF9999	30
Chironominae (Unident.) QDAJ9999	12
Ephemeroptera QE	30	9
Baetidae (Unident.) QE029999	30
Hemiptera QH	1	2
Corixidae (Unident.) QH659999	1
Trichoptera QT	28	8
Hydrobiosidae (Unident.) QT019999	5
Hydropsychidae (Unident.) QT069999	22
Ecnomidae (Unident.) QT089999	1

SIGNALT	4.1
	ORDER
Weighted SIGNALT	5.2

Sampled on 11 November 2010

Taxa	Abundance	SIGNALT Grade
Oligochaeta LO	10	2
Oligochaeta (Unident.) LO999999	10
Amphipoda OP	24	3
Ceinidae (Unident.) OP029999	24

Coleoptera QC	18	5
Elmidae (Unident.) QC349999	14

Elmidae (Unident.)(Larvae) QC34999I	2

Psephenidae (Unident.) QC379999	2

Diptera QD	38	3
Simuliidae (Unident.) QD109999	4

Orthocladiinae (Unident.) QDAF9999	30
Chironominae (Unident.) QDAJ9999	4
Ephemeroptera QE	12	9
Baetidae (Unident.) QE029999	12
Plecoptera QP	3	10
Gripopterygidae (Unident.) QP039999	2
Notonemouridae (Unident.) QP049999	1
Trichoptera QT	11	8
Hydrobiosidae (Unident.) QT019999	2
Hydropsychidae (Unident.) QT069999	9

SIGNALT	5.7
	ORDER
Weighted SIGNALT	5.3

Sampled on 16 April 2009

Taxa	Abundance	SIGNALT Grade
Unknown IB	2
Hydridae (Unident.) IB019999	2
Turbellaria IF	7	2
Dugesiidae (Unident.) IF619999	7
Gastropoda KG	8	1
Hydrobiidae (Unident.) KG029999	6
Physidae (Unident.) KG089999	2
Bivalvia KP	3	3
Sphaeriidae (Unident.) KP039999	3
Amphipoda OP	9	3
Paramelitidae (Unident.) OP069999	9

Isopoda OR	1	2
Janiridae (Unident.) OR189999	1

Coleoptera QC	35	5
Elmidae (Unident.) QC349999	12

Elmidae (Unident.)(Larvae) QC34999I	11

Psephenidae (Unident.) QC379999	12

Diptera QD	48	3
Simuliidae (Unident.) QD109999	15

Orthocladiinae (Unident.) QDAF9999	30
Chironominae (Unident.) QDAJ9999	2
Chironomidae (Unident.) (Pupa) QDAZ999I	1
Ephemeroptera QE	49	9
Baetidae (Unident.) QE029999	19
Caenidae (Unident.) QE089999	30
Hemiptera QH	1	2
Corixidae (Unident.) QH659999	1
Trichoptera QT	36	8
Hydroptilidae (Unident.) QT039999	2
Hydropsychidae (Unident.) QT069999	30
Ecnomidae (Unident.) QT089999	4

SIGNALT	3.5
	ORDER
Weighted SIGNALT	4.5

Sampled on 8 December 2008

Taxa	Abundance	SIGNALT Grade
Turbellaria IF	3	2
Temnocephalidea (Unident.) IF499999	1
Dugesiidae (Unident.) IF619999	2
Gastropoda KG	4	1
Hydrobiidae (Unident.) KG029999	3
Physidae (Unident.) KG089999	1
Bivalvia KP	1	3
Sphaeriidae (Unident.) KP039999	1
Oligochaeta LO	7	2
Oligochaeta (Unident.) LO999999	7
Amphipoda OP	90	3
Ceinidae (Unident.) OP029999	90

Coleoptera QC	48	5
Elmidae (Unident.) QC349999	19

Elmidae (Unident.)(Larvae) QC34999I	13

Psephenidae (Unident.) QC379999	16

Diptera QD	27	3
Simuliidae (Unident.) QD109999	3

Tanypodinae (Unident.) QDAE9999	1
Orthocladiinae (Unident.) QDAF9999	13
Chironominae (Unident.) QDAJ9999	10
Ephemeroptera QE	31	9
Baetidae (Unident.) QE029999	30
Caenidae (Unident.) QE089999	1
Hemiptera QH	1	2
Corixidae (Unident.) QH659999	1
Plecoptera QP	1	10
Gripopterygidae (Unident.) QP039999	1
Trichoptera QT	34	8
Hydrobiosidae (Unident.) QT019999	4
Hydropsychidae (Unident.) QT069999	30

SIGNALT	4.4
	ORDER
Weighted SIGNALT	4.8

Sampled on 27 March 2007

Taxa	Abundance	SIGNALT Grade
Turbellaria IF	5	2
Dugesiidae (Unident.) IF619999	5
Gastropoda KG	17	1
Hydrobiidae (Unident.) KG029999	16
Physidae (Unident.) KG089999	1
Bivalvia KP	1	3
Sphaeriidae (Unident.) KP039999	1
Oligochaeta LO	2	2
Oligochaeta (Unident.) LO999999	2
Acarina MM	1	6
Mites (Unident.) MM999999	1

Amphipoda OP	90	3
Ceinidae (Unident.) OP029999	90

Unknown OT	6
Atyidae (Unident.) OT019999	6

Coleoptera QC	64	5
Elmidae (Unident.) QC349999	30

Elmidae (Unident.)(Larvae) QC34999I	30

Psephenidae (Unident.) QC379999	4

Diptera QD	39	3
Simuliidae (Unident.) QD109999	2

Muscidae (Unident.) QD899999	1
Muscidae (Unident.) (Pupa) QD89999I	7
Tanypodinae (Unident.) QDAE9999	1
Orthocladiinae (Unident.) QDAF9999	13
Chironominae (Unident.) QDAJ9999	15
Ephemeroptera QE	17	9
Baetidae (Unident.) QE029999	14
Caenidae (Unident.) QE089999	3
Trichoptera QT	72	8
Hydrobiosidae (Unident.) QT019999	11
Hydroptilidae (Unident.) QT039999	21
Hydropsychidae (Unident.) QT069999	30
Hydropsychidae (Unident.) (Pupa) QT06999I	4
Ecnomidae (Unident.) QT089999	6

SIGNALT	3.8
	ORDER
Weighted SIGNALT	4.2

Sampled on 12 October 2006

Taxa	Abundance	SIGNALT Grade
Turbellaria IF	1	2
Dugesiidae (Unident.) IF619999	1
Gastropoda KG	10	1
Hydrobiidae (Unident.) KG029999	9
Physidae (Unident.) KG089999	1
Hirudinea LH	1	1
Glossiphoniidae (Unident.) LH019999	1
Oligochaeta LO	22	2
Oligochaeta (Unident.) LO999999	22
Amphipoda OP	84	3
Ceinidae (Unident.) OP029999	84

Unknown OT	12
Atyidae (Unident.) OT019999	12

Coleoptera QC	53	5
Elmidae (Unident.) QC349999	29

Elmidae (Unident.)(Larvae) QC34999I	16

Psephenidae (Unident.) QC379999	8

Diptera QD	75	3
Tipulidae (Unident.) QD019999	6
Simuliidae (Unident.) QD109999	10

Tanypodinae (Unident.) QDAE9999	2
Orthocladiinae (Unident.) QDAF9999	50
Chironominae (Unident.) QDAJ9999	4
Chironomidae (Unident.) (Pupa) QDAZ999I	3
Ephemeroptera QE	25	9
Baetidae (Unident.) QE029999	20
Caenidae (Unident.) QE089999	5
Hemiptera QH	15	2
Corixidae (Unident.) QH659999	15
Plecoptera QP	4	10
Gripopterygidae (Unident.) QP039999	4
Trichoptera QT	27	8
Hydrobiosidae (Unident.) QT019999	6
Hydropsychidae (Unident.) QT069999	18
Ecnomidae (Unident.) QT089999	3

SIGNALT	3.8
	ORDER
Weighted SIGNALT	4.1

Sampled on 16 March 1993

Taxa	Abundance	SIGNALT Grade
Bivalvia KP	3	3
Corbiculina australis KP020101	1
Pelecypoda (Unident.) KP999999	2
Oligochaeta LO	16	2
Oligochaeta (Unident.) LO999999	16
Amphipoda OP	12	3
Austrochiltonia sp.(Unident.) OP020199	6

Amphipoda (Unident.) OP999999	6

Coleoptera QC	344	5
Austrolimnius montanus QC340132	6

Austrolimnius sp.(Unident.) QC340199	18

Austrolimnius sp.(Unident.)(Larva) QC34019I	32

Simsonia sp.(Unident.) QC340299	106

Simsonia sp.L3E(F) QC3402A8	56

Notriolus maculatus (Larva) QC34030G	2

Notriolus quadriplagiatus QC340310	8

Notriolus victoriae QC340316	10

Elmidae (Unident.) QC349999	67

Unknown QC37010D	38
Unknown QC37019I	1
Diptera QD	236	3
Tipulidae (Unident.) (Pupa) QD01999I	1
Tipulidae EPA sp.40 QD0199A5	5
Austrosimulium furiosum QD100102	1

Simulium ornatipes QD100202	2

Empididae SRV sp.1 QD3599A1	2
Thienemanniella sp.(Unident.) QDAF0799	18
Cardiocladius sp.(Unident.) QDAF1499	161
Cricotopus sp.(Unident.) QDAF1599	27
Paratanytarsus sp.(Unident.) QDAH0699	14
Polypedilum sp.(Unident.) QDAI0899	4
Chironomidae (Unident.)(Larva) QDAZ9999	1
Ephemeroptera QE	93	9
Baetidae MV/EPA sp.5 QE0201A5	48
Baetis EPA sp.6 QE0201A6	1
Baetidae (Unident.) QE029999	34
Tasmanocoenis sp.(Unident.) QE080199	1
Caenidae (Unident.) QE089999	9
Hemiptera QH	1	2
Micronecta sp.(Unident.) QH650599	1
Megaloptera QM	2	8
Archichauliodes sp.(Unident.) QM010199	2

Odonata QO	2	3
Austroaeschna parvistigma QO210305	2
Trichoptera QT	116	8
Ulmerochorema stigma QT011407	16
Ulmerochorema rubiconum / membrum group QT0114A1	3
Hydroptila scamandra QT030505	4
Hydroptilidae (Unident.) QT039999	3
Hydroptilidae (Unident.) (Pupa) QT03999I	4
Cheumatopsyche deani QT060507	23
Cheumatopsyche sp.(Unident.) QT060599	15
Cheumatopsyche sp.AV2 QT0605A2	45
Cheumatopsyche sp.AV5 QT0605A5	1
Ecnomidae (Unident.) QT089999	2

SIGNALT	4.6
	ORDER
Weighted SIGNALT	5.0

Sampled on 10 December 1992

Taxa	Abundance	SIGNALT Grade
Oligochaeta LO	8	2
Oligochaeta (Unident.) LO999999	8
Acarina MM	1	6
Mites (Unident.) MM999999	1

Amphipoda OP	33	3
Austrochiltonia sp.(Unident.) OP020199	27

Amphipoda (Unident.) OP999999	6

Unknown OT	2
Paratya australiensis OT010101	2

Coleoptera QC	82	5
Gyrinidae EPA sp.L1 QC1099A1	1

Austrolimnius diemensis QC340116	2

Austrolimnius sp.L10E QC3401C2	1

Simsonia longipes (Larva) QC34020H	2

Simsonia sp.(Unident.) QC340299	46

Simsonia sp.L3E(F) QC3402A8	8

Simsonia sp.L12E QC3402A9	1

Elmidae (Unident.) QC349999	1

Elmidae (Unident.)(Larvae) QC34999I	1

Unknown QC37010D	17
Unknown QC37019I	2
Diptera QD	153	3
Tipulidae EPA sp.40 QD0199A5	2
Austrosimulium bancrofti QD100101	1

Austrosimulium furiosum QD100102	1

Austrosimulium sp.(Unident.) QD100199	3

Simulium ornatipes QD100202	2

Simuliidae (Unident.) QD109999	2

Thienemanniella sp.(Unident.) QDAF0799	1
Cardiocladius sp.(Unident.) QDAF1499	132
Cricotopus sp.(Unident.) QDAF1599	2
Polypedilum sp.(Unident.) QDAI0899	2
Paracladopelma sp.(Unident.) QDAI2499	1
Chironomidae (Unident.)(Larva) QDAZ9999	4
Ephemeroptera QE	208	9
Baetidae MV/EPA sp.5 QE0201A5	165
Baetis EPA sp.6 QE0201A6	20
Baetidae (Unident.) QE029999	19
Tasmanocoenis arcuata QE080106	2
Caenidae (Unident.) QE089999	2
Hemiptera QH	1	2
Micronecta sp.(Unident.) QH650599	1
Odonata QO	2	3
Austroaeschna unicornis unicornis QO210308	2
Plecoptera QP	1	10
Dinotoperla serricauda QP030207	1
Trichoptera QT	14	8
Ulmerochorema stigma QT011407	1
Hydroptilidae (Unident.) (Pupa) QT03999I	4
Cheumatopsyche deani QT060507	7
Cheumatopsyche sp.(Unident.) QT060599	2

SIGNALT	4.6
	ORDER
Weighted SIGNALT	5.0

Sampled on 24 October 1991

Taxa	Abundance	SIGNALT Grade
Turbellaria IF	1	2
Dugesiidae (Unident.) IF619999	1
Gastropoda KG	4	1
Hydrobiidae (Unident.) KG029999	4
Oligochaeta LO	65	2
Oligochaeta (Unident.) LO999999	65
Amphipoda OP	243	3
Austrochiltonia sp.(Unident.) OP020199	120

Paramelitidae (Unident.) OP069999	123

Unknown OT	8
Paratya australiensis OT010101	8

Coleoptera QC	152	5
Austrolimnius montanus QC340132	6

Austrolimnius sp.(Unident.) QC340199	18

Austrolimnius sp.L10E QC3401C2	9

Simsonia longipes (Larva) QC34020H	25

Simsonia sp.(Unident.) QC340299	42

Unknown QC37010D	52
Diptera QD	412	3
Tipulidae EPA sp.40 QD0199A5	1
Austrosimulium furiosum QD100102	15

Muscidae (Unident.) QD899999	1
Paramerina sp.(Unident.) QDAE1299	1
Corynoneura sp.(Unident.) QDAF0699	1
Thienemanniella sp.(Unident.) QDAF0799	6
Cardiocladius sp.(Unident.) QDAF1499	121
Cricotopus sp.(Unident.) QDAF1599	122
Paratrichocladius sp.(Unident.) QDAF1699	128
Paracladopelma sp.(Unident.) QDAI2499	1
Parachironomus sp.(Unident.) QDAI2599	1
Chironomidae (Unident.)(Larva) QDAZ9999	14
Ephemeroptera QE	162	9
Baetidae MV/EPA sp.5 QE0201A5	10
Baetidae (Unident.) QE029999	123
Tasmanocoenis sp.(Unident.) QE080199	8
Caenidae (Unident.) QE089999	21
Hemiptera QH	4	2
Micronecta annae annae QH650504	4
Odonata QO	1	3
Austroaeschna pulchra QO210306	1
Plecoptera QP	4	10
Dinotoperla serricauda QP030207	4
Trichoptera QT	7	8
Ulmerochorema rubiconum / membrum group QT0114A1	3
Hydroptilidae (Unident.) QT039999	1
Cheumatopsyche deani QT060507	1
Conoesucidae (Unident.) QT159999	2

SIGNALT	4.0
	ORDER
Weighted SIGNALT	4.2

Sampled on 4 March 1991

Taxa	Abundance	SIGNALT Grade
Turbellaria IF	2	2
Dugesiidae (Unident.) IF619999	2
Oligochaeta LO	5	2
Oligochaeta (Unident.) LO999999	5
Amphipoda OP	171	3
Austrochiltonia sp.(Unident.) OP020199	171

Unknown OT	2
Paratya australiensis OT010101	2

Coleoptera QC	260	5
Necterosoma penicillatus QC092001	3

Necterosoma sp.(Unident.)(Larva) QC09209I	3

Austrolimnius montanus QC340132	4

Austrolimnius sp.L10E QC3401C2	10

Simsonia brooksi (Larva) QC34020C	70

Simsonia sp.(Unident.) QC340299	56

Notriolus maculatus QC340307	6

Elmidae (Unident.) QC349999	8

Unknown QC37010D	100
Diptera QD	122	3
Tipulidae EPA sp.40 QD0199A5	2
Simulium ornatipes QD100202	4

Simuliidae (Unident.) QD109999	2

Ablabesmyia sp.(Unident.) QDAE1199	2
Paramerina sp.(Unident.) QDAE1299	1
Nanocladius sp.(Unident.) QDAF0499	2
Corynoneura sp.(Unident.) QDAF0699	20
Thienemanniella sp.(Unident.) QDAF0799	38
Cricotopus sp.(Unident.) QDAF1599	32
Riethia sp.(Unident.) QDAG0199	5
Cladotanytarsus sp.(Unident.) QDAH0399	2
Rheotanytarsus sp.(Unident.) QDAH0799	2
Dicrotendipes sp.(Unident.) QDAI0699	9
Polypedilum sp.(Unident.) QDAI0899	1
Ephemeroptera QE	480	9
Baetidae MV/EPA sp.5 QE0201A5	266
Centroptilum sp.(Unident.) QE020399	1
Baetidae (Unident.) QE029999	208
Tasmanocoenis tillyardi QE080101	1
Caenidae (Unident.) QE089999	4
Hemiptera QH	78	2
Micronecta annae annae QH650504	14
Micronecta sp.(Unident.) QH650599	64
Odonata QO	1	3
Austroaeschna unicornis unicornis QO210308	1
Trichoptera QT	197	8
Ulmerochorema stigma QT011407	9
Hydroptila acinacis QT030501	7
Hydroptilidae (Unident.) QT039999	1
Hydroptilidae (Unident.) (Pupa) QT03999I	3
Cheumatopsyche deani QT060507	35
Cheumatopsyche sp.AV2 QT0605A2	99
Hydropsychidae (Unident.) QT069999	39
Ecnomus tillyardi QT080403	3
Notalina spira QT250504	1

SIGNALT	3.7
	ORDER
Weighted SIGNALT	4.5

Sampled on 25 October 1990

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	5	1
Hydrobiidae (Unident.) KG029999	5
Oligochaeta LO	9	2
Oligochaeta (Unident.) LO999999	9
Amphipoda OP	12	3
Austrochiltonia sp.(Unident.) OP020199	12

Unknown OT	2
Paratya australiensis OT010101	2

Coleoptera QC	171	5
Austrolimnius montanus QC340132	14

Austrolimnius sp.(Unident.) QC340199	8

Austrolimnius sp.L10E QC3401C2	4

Simsonia brooksi (Larva) QC34020C	26

Simsonia sp.(Unident.) QC340299	46

Unknown QC37010D	63
Unknown QC37019I	10
Diptera QD	129	3
Tipulidae EPA sp.37 QD0199A2	1
Ceratopogonidae EPA sp.28 QD0999E9	2

Thienemanniella sp.(Unident.) QDAF0799	8
Eukiefferiella sp.(Unident.) QDAF1399	1
Cardiocladius sp.(Unident.) QDAF1499	16
Paratrichocladius sp.(Unident.) QDAF1699	100
Paracladopelma sp.(Unident.) QDAI2499	1
Ephemeroptera QE	2	9
Baetidae (Unident.) QE029999	2
Megaloptera QM	3	8
Archichauliodes sp.(Unident.) QM010199	3

Odonata QO	2	3
Austroaeschna pulchra QO210306	1
Austroaeschna unicornis unicornis QO210308	1
Trichoptera QT	35	8
Ulmerochorema stigma QT011407	12
Hydrobiosidae (Unident.) QT019999	2
Cheumatopsyche deani QT060507	5
Cheumatopsyche sp.AV2 QT0605A2	15
Ecnomus sp.(Unident.) QT080499	1

SIGNALT	4.2
	ORDER
Weighted SIGNALT	4.4

Sampled on 14 May 1990

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	4	1
Hydrobiidae (Unident.) KG029999	3
Physa acuta KG080101	1
Oligochaeta LO	2	2
Oligochaeta (Unident.) LO999999	2
Amphipoda OP	15	3
Austrochiltonia sp.(Unident.) OP020199	15

Unknown OT	8
Paratya australiensis OT010101	8

Coleoptera QC	43	5
Austrolimnius montanus QC340132	2

Simsonia sp.(Unident.) QC340299	4

Unknown QC37010D	37
Diptera QD	13	3
Thienemanniella sp.(Unident.) QDAF0799	1
Cardiocladius sp.(Unident.) QDAF1499	3
Paratrichocladius sp.(Unident.) QDAF1699	7
Chironomus sp.(Unident.) QDAI0499	2

Ephemeroptera QE	16	9
Baetidae MV/EPA sp.5 QE0201A5	12
Baetidae (Unident.) QE029999	4
Megaloptera QM	4	8
Archichauliodes sp.(Unident.) QM010199	4

Odonata QO	9	3
Austroaeschna unicornis unicornis QO210308	9
Trichoptera QT	35	8
Ulmerochorema onychion QT011404	2
Cheumatopsyche sp.AV2 QT0605A2	33

SIGNALT	4.2
	ORDER
Weighted SIGNALT	4.7