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

Darwin R d/s Darwin River Dam MR-DW-08

Source Department of Environment and Natural Resources
Latest Sample Date 01-09-1995
Taxa count ORDER 11
Taxa count FAMILY 27
Taxa count ALT 29
Mayflies present? 52
ORDER FAMILY ALT
SIGNAL 3.9 3.9 2.6
Weighted SIGNAL 5 5 3.6

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Residential And Infrastructure 5.4.2 Rural residential with agriculture, 5.4.3 Rural residential without agriculture, 5.4.5 Farm buildings/infrastructure, 5.5.2 Public services, 5.5.3 Recreation and culture, 5.7.2 Roads 57.34% 232,413,393m2
  Pastoral Farming 3.2.0 Grazing modified pastures 25.65% 103,961,259m2
  Minimal Use 1.3.3 Residual native cover 12.15% 49,231,654m2
  Arable Farming 3.3.3 Hay and silage, 4.4.1 Irrigated tree fruits 4.87% 19,742,643m2
4,053,489m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Bivalvia KP 1 3
Hyriidae (Unident.) KP019999
1
Oligochaeta LO 3 2
Oligochaeta (Unident.) LO999999
3
Acarina MM 29 6
Mites (Unident.) MM999999
29
Mites (Unident.)
Unknown OT 81
Atyidae (Unident.) OT019999
80
Atyidae (Unident.)
Atyidae (Unident.)
Palaemonidae (Unident.) OT029999
1
Palaemonidae (Unident.)
Coleoptera QC 18 5
Dytiscidae (Unident.) QC099999
10
Dytiscidae (Unident.)(Larva) QC09999I
1
Hydrophilidae (Unident.) QC119999
6
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)(Larva) QC11999I
1
Hydrophilidae (Unident.)(Larva)
Diptera QD 135 3
Culicidae (Unident.) QD079999
6
Culicidae (Unident.)
Ceratopogonidae (Unident.) QD099999
32
Ceratopogonidae (Unident.)
Tanypodinae (Unident.) QDAE9999
19
Orthocladiinae (Unident.) QDAF9999
3
Unknown QDAZ9998
75
Ephemeroptera QE 52 9
Baetidae (Unident.) QE029999
9
Leptophlebiidae (Unident.) QE069999
3
Caenidae (Unident.) QE089999
40
Hemiptera QH 8 2
Mesoveliidae (Unident.) QH529999
1
Belostomatidae (Unident.) QH629999
1
Notonectidae (Unident.) QH679999
2
Pleidae (Unident.) QH689999
4
Lepidoptera QL 2 2
Crambidae (Unident.) QL019999
2
Crambidae (Unident.)
Odonata QO 7 3
Coenagrionidae (Unident.) QO029999
2
Isostictidae (Unident.) QO039999
1
Protoneuridae (Unident.) QO049999
1
Gomphidae (Unident.) QO139999
1
Libellulidae (Unident.) QO179999
2
Trichoptera QT 13 8
Hydroptilidae (Unident.) QT039999
6
Leptoceridae (Unident.) QT259999
7
ORDER
SIGNALT 3.9
Weighted SIGNALT 4.4
Taxa Abundance SIGNALT Grade
Nematoda II 1 3
Nematoda (Unident.) II999999
1
Acarina MM 43 6
Mites (Unident.) MM999999
43
Mites (Unident.)
Unknown OT 11
Atyidae (Unident.) OT019999
10
Atyidae (Unident.)
Atyidae (Unident.)
Palaemonidae (Unident.) OT029999
1
Palaemonidae (Unident.)
Coleoptera QC 30 5
Dytiscidae (Unident.) QC099999
1
Hydrophilidae (Unident.) QC119999
21
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)(Larva) QC11999I
1
Hydrophilidae (Unident.)(Larva)
Hydraenidae (Unident.) QC139999
4
Hydraenidae (Unident.)
Staphylinidae (Unident.) QC189999
1
Elmidae (Unident.)(Larvae) QC34999I
2
Elmidae (Unident.)(Larvae)
Diptera QD 185 3
Culicidae (Unident.) QD079999
10
Culicidae (Unident.)
Ceratopogonidae (Unident.) QD099999
42
Ceratopogonidae (Unident.)
Stratiomyidae (Unident.) QD249999
1
Tanypodinae (Unident.) QDAE9999
16
Orthocladiinae (Unident.) QDAF9999
5
Unknown QDAZ9998
110
Chironomidae (Unident.)(Larva) QDAZ9999
1
Ephemeroptera QE 15 9
Baetidae (Unident.) QE029999
3
Caenidae (Unident.) QE089999
12
Hemiptera QH 11 2
Hydrometridae (Unident.) QH549999
1
Veliidae (Unident.) QH569999
2
Nepidae (Unident.) QH619999
1
Corixidae (Unident.) QH659999
2
Naucoridae (Unident.) QH669999
1
Pleidae (Unident.) QH689999
4
Neuroptera QN 2 6
Sisyridae (Unident.) QN059999
2
Sisyridae (Unident.)
Sisyridae (Unident.)
Odonata QO 1 3
Coenagrionidae (Unident.) QO029999
1
Trichoptera QT 10 8
Hydroptilidae (Unident.) QT039999
4
Ecnomidae (Unident.) QT089999
2
Calamoceratidae (Unident.) QT249999
1
Leptoceridae (Unident.) QT259999
3
ORDER
SIGNALT 4.5
Weighted SIGNALT 4.5