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

Unnamed trib of Nepean River @ Shadforth Bridge 22138

Source Office of Environment and Heritage
Latest Sample Date 21-06-2011
Taxa count ORDER 6
Taxa count FAMILY 11
Taxa count ALT 11
Mayflies present? 0
ORDER FAMILY ALT
SIGNAL 3.5 3.4 2.7
Weighted SIGNAL 3.2 4.2

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 34.06% 152,843,066m2
  Residential And Infrastructure 5.4.0 Residential and farm infrastructure, 5.4.1 Urban residential, 5.4.2 Rural residential with agriculture, 5.4.3 Rural residential without agriculture, 5.4.5 Farm buildings/infrastructure, 5.5.3 Recreation and culture, 5.7.0 Transport and communication, 5.7.2 Roads 32.61% 146,339,105m2
  Pastoral Farming 3.2.0 Grazing modified pastures, 3.2.1 Native/exotic pasture mosaic 21.07% 94,557,576m2
  Intensive Pastoral Farming 5.2.0 Intensive animal production 4.68% 21,012,795m2
  Arable Farming 3.4.0 Perennial horticulture, 3.5.0 Seasonal horticulture 4.63% 20,762,642m2
Show minor land uses 2
4,487,733m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Unknown MA 1
Araneae (Unident.) MA999999
1
Coleoptera QC 6 5
Dytiscidae (Unident.) QC099999
3
Hydrophilidae (Unident.) QC119999
3
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Diptera QD 42 3
Tipulidae (Unident.) QD019999
1
Chironominae (Unident.) QDAJ9999
41
Hemiptera QH 2 2
Veliidae (Unident.) QH569999
1
Gelastocoridae (Unident.) QH649999
1
Odonata QO 22 3
Megapodagrionidae (Unident.) QO079999
8
Corduliidae (Unident.) QO169999
5
Libellulidae (Unident.) QO179999
9
Trichoptera QT 14 8
Leptoceridae (Unident.) QT259999
14
ORDER
SIGNALT 3.5
Weighted SIGNALT 4.2