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

COTTER RIVER u/s Vanity's Crossing 65722

Source	Office of Environment and Heritage
Latest Sample Date	07-11-2006
Taxa count ORDER	13
Taxa count FAMILY	41
Taxa count ALT	41
Mayflies present?	104
	ORDER	FAMILY	ALT
SIGNAL	4.6	5.1	4.3
Weighted SIGNAL	5.2		5.9

Waterbug Land Use

	Category	ALUM Categories	Percent of upstream catchment	Area
	Natural	1.1.1 Strict nature reserves, 1.1.2 Wilderness area, 1.1.3 National park, 1.2.2 Surface water supply	97.38%	36,010,168,134m²
	Water	6.2.1 Reservoir, 6.3.0 River, 6.5.0 Marsh/wetland	1.63%	604,236,042m²
	Residential And Infrastructure	5.7.2 Roads	0.41%	149,996,535m²
	Minimal Use	1.3.3 Residual native cover, 2.1.0 Grazing native vegetation	0.13%	47,998,891m²
	Forestry Plantation	3.1.2 Softwood plantation forestry	0.08%	28,499,342m²
Show minor land uses 4
				369,783,958m²

Waterbug sample history

Sampled on 7 November 2006

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	2	1
Physidae (Unident.) KG089999	2
Bivalvia KP	4	3
Sphaeriidae (Unident.) KP039999	4
Oligochaeta LO	7	2
Oligochaeta (Unident.) LO999999	7
Acarina MM	1	6
Mites (Unident.) MM999999	1

Unknown OH	1
Ostracoda (Unident.) OH999999	1
Coleoptera QC	24	5
Hydrophilidae (Unident.) QC119999	6

Elmidae (Unident.) QC349999	4

Psephenidae (Unident.) QC379999	14

Diptera QD	56	3
Tipulidae (Unident.) QD019999	3
Dixidae (Unident.) QD069999	5

Ceratopogonidae (Unident.) QD099999	2

Simuliidae (Unident.) QD109999	5

Muscidae (Unident.) QD899999	2
Tanypodinae (Unident.) QDAE9999	15
Orthocladiinae (Unident.) QDAF9999	3
Chironominae (Unident.) QDAJ9999	21
Ephemeroptera QE	104	9
Baetidae (Unident.) QE029999	19
Oniscigastridae (Unident.) QE039999	2
Ameletopsidae (Unident.) QE049999	1
Coloburiscidae (Unident.) QE059999	13
Leptophlebiidae (Unident.) QE069999	65
Caenidae (Unident.) QE089999	4
Hemiptera QH	7	2
Hydrometridae (Unident.) QH549999	1
Veliidae (Unident.) QH569999	1
Gerridae (Unident.) QH579999	3
Gelastocoridae (Unident.) QH649999	1
Notonectidae (Unident.) QH679999	1
Megaloptera QM	21	8
Corydalidae (Unident.) QM019999	21

Odonata QO	71	3
Synlestidae (Unident.) QO089999	8
Aeshnidae (Unident.) QO129999	7
Gomphidae (Unident.) QO139999	38
Corduliidae (Unident.) QO169999	18
Plecoptera QP	27	10
Gripopterygidae (Unident.) QP039999	27
Trichoptera QT	63	8
Hydrobiosidae (Unident.) QT019999	13
Glossosomatidae (Unident.) QT029999	8
Philopotamidae (Unident.) QT049999	9
Hydropsychidae (Unident.) QT069999	3
Conoesucidae (Unident.) QT159999	8
Odontoceridae (Unident.) QT229999	2
Calamoceratidae (Unident.) QT249999	3
Leptoceridae (Unident.) QT259999	17

SIGNALT	4.6
	ORDER
Weighted SIGNALT	5.5