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

THOMSON RIVER AT DENISON 258803

Source EPA Victoria
Latest Sample Date 21-04-2012
Taxa count ORDER 9
Taxa count FAMILY 16
Taxa count ALT 17
Mayflies present? 34
ORDER FAMILY ALT
SIGNAL 5.3 5.8 4.6
Weighted SIGNAL 6.1 5 5.6

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Forestry 2.2.0 Production native forests, 3.1.0 Plantation forests 77.87% 102,276,049,937m2
  Natural 1.1.1 Strict nature reserves, 1.1.3 National park, 1.1.4 Natural feature protection, 1.1.7 Other conserved area 9.92% 13,032,420,491m2
  Pastoral Farming 3.2.0 Grazing modified pastures, 4.2.0 Grazing irrigated modified pastures 8.52% 11,197,111,275m2
Show minor land uses 9
1,313,502,380m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Turbellaria IF 1 2
Dugesiidae (Unident.) IF619999
1
Bivalvia KP 1 3
Corbiculidae (Unident.) KP029999
1
Oligochaeta LO 6 2
Oligochaeta (Unident.) LO999999
6
Acarina MM 3 6
Mites (Unident.) MM999999
3
Mites (Unident.)
Coleoptera QC 16 5
Elmidae (Unident.) QC349999
12
Elmidae (Unident.)
Elmidae (Unident.)(Larvae) QC34999I
2
Elmidae (Unident.)(Larvae)
Psephenidae (Unident.) QC379999
2
Psephenidae (Unident.)
Psephenidae (Unident.)
Diptera QD 34 3
Orthocladiinae (Unident.) QDAF9999
21
Chironominae (Unident.) QDAJ9999
1
Chironomidae (Unident.) (Pupa) QDAZ999I
12
Ephemeroptera QE 34 9
Baetidae (Unident.) QE029999
25
Leptophlebiidae (Unident.) QE069999
7
Caenidae (Unident.) QE089999
2
Plecoptera QP 1 10
Gripopterygidae (Unident.) QP039999
1
Trichoptera QT 8 8
Hydroptilidae (Unident.) QT039999
2
Hydropsychidae (Unident.) QT069999
5
Conoesucidae (Unident.) QT159999
1
ORDER
SIGNALT 5.3
Weighted SIGNALT 5.5
Taxa Abundance SIGNALT Grade
Gastropoda KG 1 1
Physidae (Unident.) KG089999
1
Oligochaeta LO 4 2
Oligochaeta (Unident.) LO999999
4
Acarina MM 1 6
Mites (Unident.) MM999999
1
Mites (Unident.)
Coleoptera QC 29 5
Elmidae (Unident.) QC349999
27
Elmidae (Unident.)
Elmidae (Unident.)(Larvae) QC34999I
2
Elmidae (Unident.)(Larvae)
Diptera QD 39 3
Tipulidae (Unident.) QD019999
1
Diamesinae (Unident.) QDAB9999
3
Tanypodinae (Unident.) QDAE9999
1
Orthocladiinae (Unident.) QDAF9999
30
Chironominae (Unident.) QDAJ9999
3
Chironomidae (Unident.) (Pupa) QDAZ999I
1
Ephemeroptera QE 41 9
Baetidae (Unident.) QE029999
7
Leptophlebiidae (Unident.) QE069999
30
Caenidae (Unident.) QE089999
4
Plecoptera QP 3 10
Gripopterygidae (Unident.) QP039999
3
Trichoptera QT 31 8
Hydrobiosidae (Unident.) QT019999
20
Glossosomatidae (Unident.) QT029999
1
Hydropsychidae (Unident.) QT069999
9
Conoesucidae (Unident.) QT159999
1
ORDER
SIGNALT 5.5
Weighted SIGNALT 6.0