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

Myall R @ Markwell Rd 51219

Source	Office of Environment and Heritage
Latest Sample Date	18-09-2010
Taxa count ORDER	16
Taxa count FAMILY	42
Taxa count ALT	42
Mayflies present?	35
	ORDER	FAMILY	ALT
SIGNAL	3.9	4.2	3.7
Weighted SIGNAL	4.8		4.9

Waterbug Land Use

	Category	ALUM Categories	Percent of upstream catchment	Area
	Minimal Use	1.3.3 Residual native cover, 2.1.0 Grazing native vegetation	59.02%	7,005,209,836m²
	Pastoral Farming	3.2.0 Grazing modified pastures, 3.2.1 Native/exotic pasture mosaic, 3.2.5 Sown grasses	10.31%	1,224,242,981m²
	Forestry	2.2.0 Production native forests, 3.1.0 Plantation forests	9.48%	1,125,243,549m²
	Natural	1.1.1 Strict nature reserves	1.16%	137,499,212m²
	Water	6.2.0 Reservoir/dam, 6.2.2 Water storage - intensive use/farm dams, 6.3.0 River, 6.5.0 Marsh/wetland	0.88%	104,999,398m²
	Residential And Infrastructure	5.4.0 Residential and farm infrastructure, 5.4.5 Farm buildings/infrastructure, 5.7.2 Roads	0.22%	26,249,849m²
	Intensive Pastoral Farming	5.2.1 Dairy sheds and yards, 5.2.3 Poultry farms	0.04%	4,749,973m²
	Industrial	5.3.7 Sawmill	0.02%	1,999,989m²
Show minor land uses 5
				118,691,819m²

Waterbug sample history

Sampled on 18 September 2010

Taxa	Abundance	SIGNALT Grade
Nematoda II	1	3
Nematoda (Unident.) II999999	1
Gastropoda KG	5	1
Planorbidae (Unident.) KG079999	1
Physidae (Unident.) KG089999	4
Bivalvia KP	9	3
Sphaeriidae (Unident.) KP039999	9
Oligochaeta LO	2	2
Oligochaeta (Unident.) LO999999	2
Acarina MM	2	6
Mites (Unident.) MM999999	2

Unknown OG	3
Cladocera (Unident.) OG999999	3
Unknown OJ	1
Copepoda (Unident.) OJ999999	1
Unknown OT	16
Atyidae (Unident.) OT019999	16

Coleoptera QC	16	5
Dytiscidae (Unident.) QC099999	2
Hydrophilidae (Unident.) QC119999	9

Hydraenidae (Unident.) QC139999	1

Elmidae (Unident.) QC349999	4

Diptera QD	76	3
Tipulidae (Unident.) QD019999	1
Culicidae (Unident.) QD079999	2

Ceratopogonidae (Unident.) QD099999	4

Simuliidae (Unident.) QD109999	6

Ephydridae (Unident.) QD789999	1

Tanypodinae (Unident.) QDAE9999	11
Orthocladiinae (Unident.) QDAF9999	46
Chironominae (Unident.) QDAJ9999	5
Ephemeroptera QE	35	9
Baetidae (Unident.) QE029999	15
Leptophlebiidae (Unident.) QE069999	16
Caenidae (Unident.) QE089999	4
Hemiptera QH	24	2
Hydrometridae (Unident.) QH549999	1
Veliidae (Unident.) QH569999	3
Corixidae (Unident.) QH659999	7
Notonectidae (Unident.) QH679999	2
Pleidae (Unident.) QH689999	11
Megaloptera QM	6	8
Corydalidae (Unident.) QM019999	5

Sialidae (Unident.) QM029999	1
Odonata QO	11	3
Isostictidae (Unident.) QO039999	1
Megapodagrionidae (Unident.) QO079999	2
Synlestidae (Unident.) QO089999	4
Gomphidae (Unident.) QO139999	3
Corduliidae (Unident.) QO169999	1
Plecoptera QP	20	10
Gripopterygidae (Unident.) QP039999	20
Trichoptera QT	32	8
Hydrobiosidae (Unident.) QT019999	1
Hydropsychidae (Unident.) QT069999	8
Philorheithridae (Unident.) QT219999	1
Calamoceratidae (Unident.) QT249999	5
Leptoceridae (Unident.) QT259999	17

SIGNALT	3.9
	ORDER
Weighted SIGNALT	4.6