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

Yarrangobilly R @ Yans Crossing 61282

Source	Office of Environment and Heritage
Latest Sample Date	28-10-2004
Taxa count ORDER	11
Taxa count FAMILY	42
Taxa count ALT	42
Mayflies present?	162
	ORDER	FAMILY	ALT
SIGNAL	5.2	5.5	4.2
Weighted SIGNAL	6.4		6.1

Waterbug Land Use

	Category	ALUM Categories	Percent of upstream catchment	Area
	Residential And Infrastructure	5.7.2 Roads	0.27%	38,243,545m²
	Minimal Use	2.1.0 Grazing native vegetation	0.17%	24,495,865m²
Show minor land uses 2
				143,888,212m²

Waterbug sample history

Sampled on 28 October 2004

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	1	1
Ancylidae (Unident.) KG069999	1
Oligochaeta LO	18	2
Oligochaeta (Unident.) LO999999	18
Acarina MM	6	6
Mites (Unident.) MM999999	6

Coleoptera QC	41	5
Dytiscidae (Unident.) QC099999	1
Hydrophilidae (Unident.) QC119999	3

Scirtidae (Unident.) QC209999	3

Elmidae (Unident.) QC349999	22

Psephenidae (Unident.) QC379999	12

Diptera QD	110	3
Tipulidae (Unident.) QD019999	19
Ceratopogonidae (Unident.) QD099999	6

Simuliidae (Unident.) QD109999	6

Athericidae (Unident.) QD229999	22

Empididae (Unident.) QD359999	1
Aphroteniinae (Unident.) QDAA9999	2
Diamesinae (Unident.) QDAB9999	3
Tanypodinae (Unident.) QDAE9999	16
Orthocladiinae (Unident.) QDAF9999	4
Chironominae (Unident.) QDAJ9999	31
Ephemeroptera QE	162	9
Baetidae (Unident.) QE029999	49
Oniscigastridae (Unident.) QE039999	2
Coloburiscidae (Unident.) QE059999	4
Leptophlebiidae (Unident.) QE069999	100
Caenidae (Unident.) QE089999	7
Hemiptera QH	6	2
Veliidae (Unident.) QH569999	3
Corixidae (Unident.) QH659999	2
Notonectidae (Unident.) QH679999	1
Megaloptera QM	15	8
Corydalidae (Unident.) QM019999	15

Odonata QO	8	3
Aeshnidae (Unident.) QO129999	5
Gomphidae (Unident.) QO139999	1
Corduliidae (Unident.) QO169999	2
Plecoptera QP	85	10
Eustheniidae (Unident.) QP019999	1
Gripopterygidae (Unident.) QP039999	84
Trichoptera QT	102	8
Hydrobiosidae (Unident.) QT019999	12
Glossosomatidae (Unident.) QT029999	12
Philopotamidae (Unident.) QT049999	3
Hydropsychidae (Unident.) QT069999	9
Ecnomidae (Unident.) QT089999	1
Conoesucidae (Unident.) QT159999	21
Philorheithridae (Unident.) QT219999	4
Odontoceridae (Unident.) QT229999	1
Calamoceratidae (Unident.) QT249999	1
Leptoceridae (Unident.) QT259999	38

SIGNALT	5.2
	ORDER
Weighted SIGNALT	5.8