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

Source	Office of Environment and Heritage
Latest Sample Date	25-10-1997
Taxa count ORDER	10
Taxa count FAMILY	15
Taxa count ALT	15
Mayflies present?	1
	ORDER	FAMILY	ALT
SIGNAL	4.4	4.2	3.6
Weighted SIGNAL	5		3.9

	Category	ALUM Categories	Percent of upstream catchment	Area
	Natural	1.1.1 Strict nature reserves	99.73%	1,194,580,100m²
	Water	6.3.0 River	0.27%	3,252,260m²
Show minor land uses 1
				11,978,324m²

SIGNALT	4.4
	ORDER
Weighted SIGNALT	3.9

Taxa	Abundance	SIGNALT Grade
Acarina MM	8	6
Mites (Unident.) MM999999	8

Amphipoda OP	3	3
Ceinidae (Unident.) OP029999	3

Unknown OT	66
Atyidae (Unident.) OT019999	66

Unknown QA	1
Collembola (Unident.) QA999999	1
Coleoptera QC	25	5
Noteridae (Unident.) QC089999	2

Gyrinidae (Unident.) QC109999	9

Scirtidae (Unident.) QC209999	10

Elmidae (Unident.) QC349999	2

Psephenidae (Unident.) QC379999	2

Diptera QD	13	3
Culicidae (Unident.) QD079999	2

Simuliidae (Unident.) QD109999	1

Tanypodinae (Unident.) QDAE9999	5
Chironominae (Unident.) QDAJ9999	5
Ephemeroptera QE	4	9
Baetidae (Unident.) QE029999	1
Leptophlebiidae (Unident.) QE069999	3
Hemiptera QH	31	2
Hydrometridae (Unident.) QH549999	1
Veliidae (Unident.) QH569999	14
Gerridae (Unident.) QH579999	6
Corixidae (Unident.) QH659999	10
Odonata QO	2	3
Megapodagrionidae (Unident.) QO079999	1
Aeshnidae (Unident.) QO129999	1
Plecoptera QP	2	10
Gripopterygidae (Unident.) QP039999	1
Notonemouridae (Unident.) QP049999	1
Trichoptera QT	41	8
Calocidae (Unident.) QT189999	1
Odontoceridae (Unident.) QT229999	2
Calamoceratidae (Unident.) QT249999	1
Leptoceridae (Unident.) QT259999	37

SIGNALT	4.5
	ORDER
Weighted SIGNALT	4.2