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

Lane Cove River us Rudder Creek 21081

Source Office of Environment and Heritage
Latest Sample Date 28-05-2009
Taxa count ORDER 12
Taxa count FAMILY 19
Taxa count ALT 19
Mayflies present? 0
ORDER FAMILY ALT
SIGNAL 2.6 2.5 2.4
Weighted SIGNAL 2.4 2.9

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Residential And Infrastructure 5.4.1 Urban residential, 5.5.0 Services, 5.5.2 Public services, 5.5.3 Recreation and culture, 5.7.2 Roads, 5.7.3 Railways 84.04% 4,658,067,963m2
  Minimal Use 1.3.3 Residual native cover 15.78% 874,450,487m2
Show minor land uses 2
55,427,708m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Turbellaria IF 4 2
Dugesiidae (Unident.) IF619999
4
Gastropoda KG 33 1
Hydrobiidae (Unident.) KG029999
30
Lymnaeidae (Unident.) KG059999
2
Physidae (Unident.) KG089999
1
Bivalvia KP 2 3
Sphaeriidae (Unident.) KP039999
2
Hirudinea LH 18 1
Glossiphoniidae (Unident.) LH019999
18
Oligochaeta LO 2 2
Oligochaeta (Unident.) LO999999
2
Acarina MM 3 6
Mites (Unident.) MM999999
3
Mites (Unident.)
Unknown OT 10
Atyidae (Unident.) OT019999
10
Atyidae (Unident.)
Atyidae (Unident.)
Unknown PD 1
Diplopoda (Unident.) PD999999
1
Diptera QD 9 3
Tipulidae (Unident.) QD019999
1
Tanypodinae (Unident.) QDAE9999
3
Orthocladiinae (Unident.) QDAF9999
1
Chironominae (Unident.) QDAJ9999
4
Hemiptera QH 2 2
Veliidae (Unident.) QH569999
2
Odonata QO 8 3
Megapodagrionidae (Unident.) QO079999
5
Aeshnidae (Unident.) QO129999
1
Corduliidae (Unident.) QO169999
2
Trichoptera QT 1 8
Hydroptilidae (Unident.) QT039999
1
ORDER
SIGNALT 2.6
Weighted SIGNALT 2.1