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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	03-06-2011
Taxa count ORDER	16
Taxa count FAMILY	21
Taxa count ALT	21
Mayflies present?	11
	ORDER	FAMILY	ALT
SIGNAL	2.9	2.9	2
Weighted SIGNAL	3		2.9

SIGNALT	2.9
	ORDER
Weighted SIGNALT	3.3

SIGNALT	2.3
	ORDER
Weighted SIGNALT	2.7

Taxa	Abundance	SIGNALT Grade
Unknown MA	2
Araneae (Unident.) MA999999	2
Isopoda OR	9	2
Corallanidae OR099999	9
Unknown OT	27
Atyidae (Unident.) OT019999	14

Palaemonidae (Unident.) OT029999	13

Coleoptera QC	8	5
Hydrophilidae (Unident.) QC119999	6

Hydraenidae (Unident.) QC139999	2

Diptera QD	14	3
Ceratopogonidae (Unident.) QD099999	6

Orthocladiinae (Unident.) QDAF9999	1
Chironominae (Unident.) QDAJ9999	7
Ephemeroptera QE	2	9
Caenidae (Unident.) QE089999	2
Hemiptera QH	20	2
Mesoveliidae (Unident.) QH529999	6
Hebridae (Unident.) QH539999	3
Hydrometridae (Unident.) QH549999	2
Veliidae (Unident.) QH569999	7
Gerridae (Unident.) QH579999	2
Odonata QO	4	3
Coenagrionidae (Unident.) QO029999	4
Trichoptera QT	2	8
Ecnomidae (Unident.) QT089999	2

SIGNALT	3.6
	ORDER
Weighted SIGNALT	2.7

Taxa	Abundance	SIGNALT Grade
Unknown OH	8
Ostracoda (Unident.) OH999999	8
Isopoda OR	6	2
Corallanidae OR099999	6
Unknown OT	11
Palaemonidae (Unident.) OT029999	11

Unknown OV	2
Parastacidae (Unident.) OV019999	2

Diptera QD	46	3
Culicidae (Unident.) QD079999	12

Ceratopogonidae (Unident.) QD099999	12

Orthocladiinae (Unident.) QDAF9999	15
Chironominae (Unident.) QDAJ9999	7
Ephemeroptera QE	6	9
Baetidae (Unident.) QE029999	4
Caenidae (Unident.) QE089999	2
Hemiptera QH	19	2
Mesoveliidae (Unident.) QH529999	3
Corixidae (Unident.) QH659999	9
Notonectidae (Unident.) QH679999	7
Odonata QO	6	3
Coenagrionidae (Unident.) QO029999	6

SIGNALT	2.4
	ORDER
Weighted SIGNALT	2.5