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

Yarrow R u/s Old Mine 44029

Source	Office of Environment and Heritage
Latest Sample Date	17-04-2008
Taxa count ORDER	17
Taxa count FAMILY	45
Taxa count ALT	45
Mayflies present?	66
	ORDER	FAMILY	ALT
SIGNAL	3.7	4.3	3.8
Weighted SIGNAL	4.9		5.2

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	71.95%	8,993,235,861m²
	Pastoral Farming	3.2.0 Grazing modified pastures	24.66%	3,082,652,379m²
	Water	6.3.0 River	2.75%	344,211,184m²
	Residential And Infrastructure	5.4.0 Residential and farm infrastructure, 5.7.2 Roads	0.64%	79,990,980m²
Show minor land uses 2
				125,000,904m²

Waterbug sample history

Sampled on 17 April 2008

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	2	1
Physidae (Unident.) KG089999	2
Bivalvia KP	11	3
Corbiculidae (Unident.) KP029999	11
Hirudinea LH	1	1
Glossiphoniidae (Unident.) LH019999	1
Oligochaeta LO	2	2
Oligochaeta (Unident.) LO999999	2
Acarina MM	3	6
Mites (Unident.) MM999999	3

Unknown OH	1
Ostracoda (Unident.) OH999999	1
Unknown OT	5
Atyidae (Unident.) OT019999	4

Palaemonidae (Unident.) OT029999	1

Unknown QA	1
Collembola (Unident.) QA999999	1
Coleoptera QC	28	5
Dytiscidae (Unident.) QC099999	1
Gyrinidae (Unident.) QC109999	3

Hydrophilidae (Unident.) QC119999	3

Hydraenidae (Unident.) QC139999	2

Staphylinidae (Unident.) QC189999	2
Elmidae (Unident.) QC349999	9

Psephenidae (Unident.) QC379999	8

Diptera QD	29	3
Tipulidae (Unident.) QD019999	1
Dixidae (Unident.) QD069999	1

Ceratopogonidae (Unident.) QD099999	4

Simuliidae (Unident.) QD109999	8

Tanypodinae (Unident.) QDAE9999	3
Orthocladiinae (Unident.) QDAF9999	8
Chironominae (Unident.) QDAJ9999	4
Ephemeroptera QE	66	9
Baetidae (Unident.) QE029999	36
Leptophlebiidae (Unident.) QE069999	23
Caenidae (Unident.) QE089999	7
Hemiptera QH	21	2
Veliidae (Unident.) QH569999	6
Gerridae (Unident.) QH579999	6
Gelastocoridae (Unident.) QH649999	1
Corixidae (Unident.) QH659999	3
Notonectidae (Unident.) QH679999	5
Lepidoptera QL	1	2
Crambidae (Unident.) QL019999	1

Megaloptera QM	14	8
Corydalidae (Unident.) QM019999	14

Odonata QO	29	3
Synlestidae (Unident.) QO089999	7
Aeshnidae (Unident.) QO129999	13
Gomphidae (Unident.) QO139999	5
Libellulidae (Unident.) QO179999	4
Plecoptera QP	12	10
Gripopterygidae (Unident.) QP039999	12
Trichoptera QT	84	8
Hydrobiosidae (Unident.) QT019999	3
Hydroptilidae (Unident.) QT039999	3
Philopotamidae (Unident.) QT049999	29
Hydropsychidae (Unident.) QT069999	34
Ecnomidae (Unident.) QT089999	2
Calamoceratidae (Unident.) QT249999	4
Leptoceridae (Unident.) QT259999	9

SIGNALT	3.7
	ORDER
Weighted SIGNALT	4.8