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

Merrica River @ Rangers Station TOWA705

Source Office of Environment and Heritage
Latest Sample Date 25-10-1997
Taxa count ORDER 14
Taxa count FAMILY 39
Taxa count ALT 39
Mayflies present? 23
ORDER FAMILY ALT
SIGNAL 4.5 5.1 4.4
Weighted SIGNAL 5.9 5

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Natural 1.1.1 Strict nature reserves 97.82% 4,581,015,062m2
Show minor land uses 1
46,830,154m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Turbellaria IF 1 2
Dugesiidae (Unident.) IF619999
1
Oligochaeta LO 3 2
Oligochaeta (Unident.) LO999999
3
Acarina MM 15 6
Mites (Unident.) MM999999
15
Mites (Unident.)
Mites (Unident.)
Amphipoda OP 6 3
Ceinidae (Unident.) OP029999
6
Ceinidae (Unident.)
Ceinidae (Unident.)
Ceinidae (Unident.)
Unknown OT 16
Atyidae (Unident.) OT019999
16
Atyidae (Unident.)
Atyidae (Unident.)
Coleoptera QC 42 5
Dytiscidae (Unident.) QC099999
4
Gyrinidae (Unident.) QC109999
15
Gyrinidae (Unident.)
Hydrophilidae (Unident.) QC119999
12
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Scirtidae (Unident.) QC209999
5
Scirtidae (Unident.)
Elmidae (Unident.) QC349999
6
Elmidae (Unident.)
Elmidae (Unident.)
Diptera QD 35 3
Tipulidae (Unident.) QD019999
4
Ceratopogonidae (Unident.) QD099999
4
Ceratopogonidae (Unident.)
Ceratopogonidae (Unident.)
Simuliidae (Unident.) QD109999
5
Simuliidae (Unident.)
Simuliidae (Unident.)
Athericidae (Unident.) QD229999
2
Athericidae (Unident.)
Athericidae (Unident.)
Tanypodinae (Unident.) QDAE9999
9
Orthocladiinae (Unident.) QDAF9999
8
Chironominae (Unident.) QDAJ9999
3
Ephemeroptera QE 23 9
Baetidae (Unident.) QE029999
2
Ameletopsidae (Unident.) QE049999
3
Leptophlebiidae (Unident.) QE069999
15
Caenidae (Unident.) QE089999
3
Hemiptera QH 5 2
Veliidae (Unident.) QH569999
3
Gerridae (Unident.) QH579999
1
Notonectidae (Unident.) QH679999
1
Lepidoptera QL 8 2
Crambidae (Unident.) QL019999
1
Crambidae (Unident.)
Lepidoptera (Unident.) QL999999
7
Lepidoptera (Unident.)
Megaloptera QM 1 8
Corydalidae (Unident.) QM019999
1
Corydalidae (Unident.)
Odonata QO 3 3
Synlestidae (Unident.) QO089999
1
Aeshnidae (Unident.) QO129999
1
Corduliidae (Unident.) QO169999
1
Plecoptera QP 10 10
Eustheniidae (Unident.) QP019999
1
Gripopterygidae (Unident.) QP039999
9
Trichoptera QT 120 8
Hydrobiosidae (Unident.) QT019999
2
Philopotamidae (Unident.) QT049999
2
Hydropsychidae (Unident.) QT069999
3
Ecnomidae (Unident.) QT089999
1
Conoesucidae (Unident.) QT159999
6
Odontoceridae (Unident.) QT229999
2
Leptoceridae (Unident.) QT259999
104
ORDER
SIGNALT 4.5
Weighted SIGNALT 4.8
Taxa Abundance SIGNALT Grade
Turbellaria IF 1 2
Dugesiidae (Unident.) IF619999
1
Acarina MM 11 6
Mites (Unident.) MM999999
11
Mites (Unident.)
Mites (Unident.)
Unknown OH 1
Ostracoda (Unident.) OH999999
1
Unknown OT 18
Atyidae (Unident.) OT019999
18
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Coleoptera QC 51 5
Dytiscidae (Unident.) QC099999
15
Gyrinidae (Unident.) QC109999
15
Gyrinidae (Unident.)
Scirtidae (Unident.) QC209999
4
Scirtidae (Unident.)
Scirtidae (Unident.)
Elmidae (Unident.) QC349999
17
Elmidae (Unident.)
Elmidae (Unident.)
Diptera QD 168 3
Tipulidae (Unident.) QD019999
13
Ceratopogonidae (Unident.) QD099999
8
Ceratopogonidae (Unident.)
Simuliidae (Unident.) QD109999
34
Simuliidae (Unident.)
Simuliidae (Unident.)
Diamesinae (Unident.) QDAB9999
3
Tanypodinae (Unident.) QDAE9999
6
Orthocladiinae (Unident.) QDAF9999
10
Chironominae (Unident.) QDAJ9999
59
Diptera (Unident.)(Larva) QDZZ9999
35
Diptera (Unident.)(Larva)
Diptera (Unident.)(Larva)
Diptera (Unident.)(Larva)
Diptera (Unident.)(Larva)
Diptera (Unident.)(Larva)
Diptera (Unident.)(Larva)
Diptera (Unident.)(Larva)
Diptera (Unident.)(Larva)
Diptera (Unident.)(Larva)
Diptera (Unident.)(Larva)
Ephemeroptera QE 58 9
Baetidae (Unident.) QE029999
39
Leptophlebiidae (Unident.) QE069999
16
Caenidae (Unident.) QE089999
3
Hemiptera QH 11 2
Veliidae (Unident.) QH569999
3
Gerridae (Unident.) QH579999
5
Corixidae (Unident.) QH659999
2
Notonectidae (Unident.) QH679999
1
Megaloptera QM 1 8
Corydalidae (Unident.) QM019999
1
Corydalidae (Unident.)
Odonata QO 9 3
Coenagrionidae (Unident.) QO029999
1
Synlestidae (Unident.) QO089999
1
Aeshnidae (Unident.) QO129999
4
Corduliidae (Unident.) QO169999
3
Plecoptera QP 28 10
Gripopterygidae (Unident.) QP039999
28
Trichoptera QT 117 8
Hydrobiosidae (Unident.) QT019999
1
Glossosomatidae (Unident.) QT029999
1
Hydroptilidae (Unident.) QT039999
2
Philopotamidae (Unident.) QT049999
1
Hydropsychidae (Unident.) QT069999
7
Conoesucidae (Unident.) QT159999
3
Helicopsychidae (Unident.) QT179999
6
Odontoceridae (Unident.) QT229999
5
Calamoceratidae (Unident.) QT249999
1
Leptoceridae (Unident.) QT259999
90
ORDER
SIGNALT 4.7
Weighted SIGNALT 5.3