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

Nepean R @ Douglas Park 22042

Source Office of Environment and Heritage
Latest Sample Date 28-03-2007
Taxa count ORDER 16
Taxa count FAMILY 33
Taxa count ALT 33
Mayflies present? 7
ORDER FAMILY ALT
SIGNAL 2.8 3.1 2.6
Weighted SIGNAL 3.9 3.2

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 82.68% 18,286,290,475m2
  Natural 1.1.1 Strict nature reserves, 1.1.3 National park, 1.2.2 Surface water supply 7.70% 1,702,544,282m2
  Water 6.1.0 Lake, 6.2.0 Reservoir/dam, 6.2.1 Reservoir, 6.3.0 River 4.82% 1,066,871,090m2
  Pastoral Farming 3.2.0 Grazing modified pastures, 3.2.1 Native/exotic pasture mosaic 3.26% 720,162,983m2
Show minor land uses 6
221,180,775m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Turbellaria IF 2 2
Dugesiidae (Unident.) IF619999
2
Gastropoda KG 1 1
Lymnaeidae (Unident.) KG059999
1
Bivalvia KP 5 3
Corbiculidae (Unident.) KP029999
2
Sphaeriidae (Unident.) KP039999
3
Hirudinea LH 9 1
Glossiphoniidae (Unident.) LH019999
9
Oligochaeta LO 15 2
Oligochaeta (Unident.) LO999999
15
Acarina MM 2 6
Mites (Unident.) MM999999
2
Mites (Unident.)
Unknown OG 1
Cladocera (Unident.) OG999999
1
Unknown OH 1
Ostracoda (Unident.) OH999999
1
Unknown OT 26
Atyidae (Unident.) OT019999
26
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Unknown QA 2
Collembola (Unident.) QA999999
2
Coleoptera QC 62 5
Dytiscidae (Unident.) QC099999
36
Hydrophilidae (Unident.) QC119999
24
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Scirtidae (Unident.) QC209999
1
Scirtidae (Unident.)
Elmidae (Unident.) QC349999
1
Elmidae (Unident.)
Diptera QD 44 3
Tanypodinae (Unident.) QDAE9999
6
Chironominae (Unident.) QDAJ9999
38
Ephemeroptera QE 7 9
Caenidae (Unident.) QE089999
7
Hemiptera QH 12 2
Mesoveliidae (Unident.) QH529999
1
Veliidae (Unident.) QH569999
2
Gelastocoridae (Unident.) QH649999
1
Corixidae (Unident.) QH659999
7
Naucoridae (Unident.) QH669999
1
Odonata QO 75 3
Coenagrionidae (Unident.) QO029999
14
Isostictidae (Unident.) QO039999
1
Protoneuridae (Unident.) QO049999
5
Megapodagrionidae (Unident.) QO079999
2
Aeshnidae (Unident.) QO129999
2
Gomphidae (Unident.) QO139999
17
Corduliidae (Unident.) QO169999
13
Libellulidae (Unident.) QO179999
21
Trichoptera QT 10 8
Ecnomidae (Unident.) QT089999
1
Leptoceridae (Unident.) QT259999
9
ORDER
SIGNALT 2.8
Weighted SIGNALT 3.1