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

Rocky Bridge Ck u/s Piesleys Ck LACH05

Source Office of Environment and Heritage
Latest Sample Date 10-11-1995
Taxa count ORDER 15
Taxa count FAMILY 33
Taxa count ALT 33
Mayflies present? 96
ORDER FAMILY ALT
SIGNAL 3.8 4.3 3.6
Weighted SIGNAL 5.5 5.2

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Minimal Use 1.3.0 Other minimal use, 2.1.0 Grazing native vegetation 49.18% 11,067,138,766m2
  Forestry 2.2.0 Production native forests 20.06% 4,514,102,659m2
  Natural 1.1.1 Strict nature reserves 14.33% 3,224,144,763m2
  Pastoral Farming 3.2.0 Grazing modified pastures 11.06% 2,489,668,737m2
  Arable Farming 3.3.0 Cropping 3.36% 756,725,300m2
Show minor land uses 3
225,015,155m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Gastropoda KG 4 1
Physidae (Unident.) KG089999
4
Oligochaeta LO 13 2
Oligochaeta (Unident.) LO999999
13
Acarina MM 2 6
Mites (Unident.) MM999999
2
Mites (Unident.)
Unknown OG 4
Cladocera (Unident.) OG999999
4
Unknown OH 2
Ostracoda (Unident.) OH999999
2
Unknown OT 55
Atyidae (Unident.) OT019999
54
Atyidae (Unident.)
Atyidae (Unident.)
Palaemonidae (Unident.) OT029999
1
Palaemonidae (Unident.)
Unknown QA 2
Collembola (Unident.) QA999999
2
Coleoptera QC 24 5
Dytiscidae (Unident.) QC099999
10
Hydraenidae (Unident.) QC139999
10
Hydraenidae (Unident.)
Elmidae (Unident.) QC349999
4
Elmidae (Unident.)
Diptera QD 57 3
Culicidae (Unident.) QD079999
2
Culicidae (Unident.)
Ceratopogonidae (Unident.) QD099999
4
Ceratopogonidae (Unident.)
Simuliidae (Unident.) QD109999
2
Simuliidae (Unident.)
Tabanidae (Unident.) QD239999
6
Diamesinae (Unident.) QDAB9999
9
Tanypodinae (Unident.) QDAE9999
2
Orthocladiinae (Unident.) QDAF9999
26
Chironominae (Unident.) QDAJ9999
6
Ephemeroptera QE 96 9
Baetidae (Unident.) QE029999
2
Leptophlebiidae (Unident.) QE069999
93
Caenidae (Unident.) QE089999
1
Hemiptera QH 29 2
Veliidae (Unident.) QH569999
20
Corixidae (Unident.) QH659999
6
Notonectidae (Unident.) QH679999
3
Megaloptera QM 2 8
Corydalidae (Unident.) QM019999
2
Corydalidae (Unident.)
Odonata QO 2 3
Synlestidae (Unident.) QO089999
2
Plecoptera QP 50 10
Gripopterygidae (Unident.) QP039999
50
Trichoptera QT 36 8
Hydrobiosidae (Unident.) QT019999
10
Glossosomatidae (Unident.) QT029999
3
Hydroptilidae (Unident.) QT039999
1
Hydropsychidae (Unident.) QT069999
18
Leptoceridae (Unident.) QT259999
4
ORDER
SIGNALT 3.8
Weighted SIGNALT 4.4