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

Avon R @ Deards Lane 52098

Source Office of Environment and Heritage
Latest Sample Date 28-10-2010
Taxa count ORDER 12
Taxa count FAMILY 24
Taxa count ALT 24
Mayflies present? 22
ORDER FAMILY ALT
SIGNAL 3.5 3.3 2.9
Weighted SIGNAL 2.5 4.1

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Forestry 2.2.0 Production native forests 36.47% 1,693,291,401m2
  Minimal Use 1.3.0 Other minimal use, 1.3.3 Residual native cover, 2.1.0 Grazing native vegetation 31.99% 1,485,347,719m2
  Natural 1.1.1 Strict nature reserves 19.57% 908,503,947m2
  Pastoral Farming 3.2.0 Grazing modified pastures, 3.2.5 Sown grasses 11.97% 555,849,458m2
46,429,925m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Gastropoda KG 9 1
Lymnaeidae (Unident.) KG059999
3
Physidae (Unident.) KG089999
6
Bivalvia KP 1 3
Sphaeriidae (Unident.) KP039999
1
Oligochaeta LO 1 2
Oligochaeta (Unident.) LO999999
1
Unknown MA 3
Araneae (Unident.) MA999999
3
Acarina MM 3 6
Mites (Unident.) MM999999
3
Mites (Unident.)
Unknown OT 18
Atyidae (Unident.) OT019999
18
Atyidae (Unident.)
Atyidae (Unident.)
Coleoptera QC 13 5
Dytiscidae (Unident.) QC099999
9
Hydraenidae (Unident.) QC139999
2
Hydraenidae (Unident.)
Staphylinidae (Unident.) QC189999
1
Hydrochidae (Unident.) QCAO9999
1
Hydrochidae (Unident.)
Diptera QD 2 3
Culicidae (Unident.) QD079999
2
Culicidae (Unident.)
Ephemeroptera QE 22 9
Leptophlebiidae (Unident.) QE069999
22
Hemiptera QH 17 2
Veliidae (Unident.) QH569999
3
Corixidae (Unident.) QH659999
2
Notonectidae (Unident.) QH679999
11
Pleidae (Unident.) QH689999
1
Odonata QO 10 3
Coenagrionidae (Unident.) QO029999
1
Isostictidae (Unident.) QO039999
2
Protoneuridae (Unident.) QO049999
2
Megapodagrionidae (Unident.) QO079999
1
Synlestidae (Unident.) QO089999
3
Gomphidae (Unident.) QO139999
1
Trichoptera QT 9 8
Leptoceridae (Unident.) QT259999
9
ORDER
SIGNALT 3.5
Weighted SIGNALT 3.9