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

Unnamed Creek @ "Pretoria" 53007

Source Office of Environment and Heritage
Latest Sample Date 07-10-2010
Taxa count ORDER 13
Taxa count FAMILY 27
Taxa count ALT 27
Mayflies present? 4
ORDER FAMILY ALT
SIGNAL 3.2 3.4 2.5
Weighted SIGNAL 3.2 3.1

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Minimal Use 1.3.2 Stock route, 1.3.3 Residual native cover, 2.1.0 Grazing native vegetation 83.16% 527,013,760m2
  Residential And Infrastructure 5.4.0 Residential and farm infrastructure, 5.4.5 Farm buildings/infrastructure, 5.7.2 Roads 15.85% 100,454,970m2
Show minor land uses 3
6,337,159m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Turbellaria IF 1 2
Dugesiidae (Unident.) IF619999
 1
Gastropoda KG 30 1
Bithynidae (Unident.) KG039999
 10
Planorbidae (Unident.) KG079999
 10
Physidae (Unident.) KG089999
 10
Hirudinea LH 2 1
Glossiphoniidae (Unident.) LH019999
 2
Oligochaeta LO 1 2
Oligochaeta (Unident.) LO999999
 1
Unknown MA 1
Araneae (Unident.) MA999999
 1
Acarina MM 3 6
Mites (Unident.) MM999999
 3
Mites (Unident.)
Unknown OH 6
Ostracoda (Unident.) OH999999
 6
Coleoptera QC 15 5
Dytiscidae (Unident.) QC099999
 11
Hydraenidae (Unident.) QC139999
 2
Hydraenidae (Unident.)
Scirtidae (Unident.) QC209999
 2
Scirtidae (Unident.)
Diptera QD 4 3
Ephydridae (Unident.) QD789999
 1
Ephydridae (Unident.)
Chironominae (Unident.) QDAJ9999
 3
Ephemeroptera QE 4 9
Baetidae (Unident.) QE029999
 3
Leptophlebiidae (Unident.) QE069999
 1
Hemiptera QH 10 2
Hydrometridae (Unident.) QH549999
 3
Veliidae (Unident.) QH569999
 1
Corixidae (Unident.) QH659999
 2
Notonectidae (Unident.) QH679999
 4
Odonata QO 36 3
Coenagrionidae (Unident.) QO029999
 18
Lestidae (Unident.) QO059999
 4
Aeshnidae (Unident.) QO129999
 5
Corduliidae (Unident.) QO169999
 8
Libellulidae (Unident.) QO179999
 1
Trichoptera QT 4 8
Hydroptilidae (Unident.) QT039999
 2
Leptoceridae (Unident.) QT259999
 2
ORDER
SIGNALT 3.2
Weighted SIGNALT 3.2

   

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