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

River Lett @ The Willows 24067

Source Office of Environment and Heritage
Latest Sample Date 08-04-2009
Taxa count ORDER 13
Taxa count FAMILY 31
Taxa count ALT 31
Mayflies present? 90
ORDER FAMILY ALT
SIGNAL 4.5 4.5 4.1
Weighted SIGNAL 5.5 5.8

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 83.75% 2,179,640,371m2
  Residential And Infrastructure 5.4.0 Residential and farm infrastructure, 5.6.1 Fuel powered electricity generation, 5.7.2 Roads, 5.7.3 Railways 13.06% 339,771,882m2
Show minor land uses 5
26,024,176m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Bivalvia KP 12 3
Sphaeriidae (Unident.) KP039999
12
Oligochaeta LO 10 2
Oligochaeta (Unident.) LO999999
10
Acarina MM 1 6
Mites (Unident.) MM999999
1
Mites (Unident.)
Unknown OH 1
Ostracoda (Unident.) OH999999
1
Unknown QA 1
Collembola (Unident.) QA999999
1
Coleoptera QC 30 5
Dytiscidae (Unident.) QC099999
3
Hydrophilidae (Unident.) QC119999
3
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Scirtidae (Unident.) QC209999
10
Scirtidae (Unident.)
Scirtidae (Unident.)
Elmidae (Unident.) QC349999
14
Elmidae (Unident.)
Diptera QD 63 3
Tipulidae (Unident.) QD019999
17
Dixidae (Unident.) QD069999
1
Dixidae (Unident.)
Ceratopogonidae (Unident.) QD099999
4
Ceratopogonidae (Unident.)
Simuliidae (Unident.) QD109999
8
Simuliidae (Unident.)
Athericidae (Unident.) QD229999
4
Athericidae (Unident.)
Athericidae (Unident.)
Tanypodinae (Unident.) QDAE9999
14
Orthocladiinae (Unident.) QDAF9999
10
Chironominae (Unident.) QDAJ9999
5
Ephemeroptera QE 90 9
Oniscigastridae (Unident.) QE039999
3
Leptophlebiidae (Unident.) QE069999
87
Hemiptera QH 11 2
Veliidae (Unident.) QH569999
6
Notonectidae (Unident.) QH679999
5
Megaloptera QM 6 8
Corydalidae (Unident.) QM019999
6
Corydalidae (Unident.)
Corydalidae (Unident.)
Odonata QO 10 3
Megapodagrionidae (Unident.) QO079999
2
Synlestidae (Unident.) QO089999
4
Aeshnidae (Unident.) QO129999
2
Corduliidae (Unident.) QO169999
2
Plecoptera QP 7 10
Gripopterygidae (Unident.) QP039999
7
Trichoptera QT 93 8
Hydrobiosidae (Unident.) QT019999
5
Ecnomidae (Unident.) QT089999
1
Philorheithridae (Unident.) QT219999
11
Leptoceridae (Unident.) QT259999
76
ORDER
SIGNALT 4.5
Weighted SIGNALT 5.1