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

EIGHTEEN MILE CREEK AT PILERWA ROAD (ALLAN DALE BRIDGE) 1380153

Source MIV
Latest Sample Date 03-06-2005
Taxa count ORDER 16
Taxa count FAMILY 33
Taxa count ALT 33
Mayflies present? 2
ORDER FAMILY ALT
SIGNAL 2.9 3.5 2.6
Weighted SIGNAL 4.2 3.3

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 51.17% 2,313,987,951m2
  Forestry 2.2.0 Production native forests 44.74% 2,023,020,902m2
  Arable Farming 4.3.5 Irrigated sugar, 4.4.0 Irrigated perennial horticulture 3.54% 160,231,854m2
Show minor land uses 4
45,217,379m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Nematoda II 5 3
Nematoda (Unident.) II999999
5
Gastropoda KG 2 1
Lymnaeidae (Unident.) KG059999
1
Ancylidae (Unident.) KG069999
1
Bivalvia KP 6 3
Sphaeriidae (Unident.) KP039999
6
Oligochaeta LO 14 2
Oligochaeta (Unident.) LO999999
14
Acarina MM 5 6
Mites (Unident.) MM999999
5
Mites (Unident.)
Mites (Unident.)
Mites (Unident.)
Unknown OG 20
Cladocera (Unident.) OG999999
20
Unknown OH 14
Ostracoda (Unident.) OH999999
14
Unknown OJ 17
Copepoda (Unident.) OJ999999
17
Unknown OT 58
Atyidae (Unident.) OT019999
58
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Coleoptera QC 52 5
Noteridae (Unident.) QC089999
6
Noteridae (Unident.)
Noteridae (Unident.)
Dytiscidae (Unident.) QC099999
15
Gyrinidae (Unident.) QC109999
6
Gyrinidae (Unident.)
Hydrophilidae (Unident.) QC119999
18
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydraenidae (Unident.) QC139999
4
Hydraenidae (Unident.)
Scirtidae (Unident.) QC209999
3
Scirtidae (Unident.)
Scirtidae (Unident.)
Diptera QD 104 3
Culicidae (Unident.) QD079999
2
Culicidae (Unident.)
Ceratopogonidae (Unident.) QD099999
38
Ceratopogonidae (Unident.)
Ceratopogonidae (Unident.)
Ceratopogonidae (Unident.)
Ceratopogonidae (Unident.)
Psychodidae (Unident.) QD129999
1
Psychodidae (Unident.)
Stratiomyidae (Unident.) QD249999
3
Tanypodinae (Unident.) QDAE9999
20
Chironominae (Unident.) QDAJ9999
40
Ephemeroptera QE 2 9
Baetidae (Unident.) QE029999
1
Caenidae (Unident.) QE089999
1
Hemiptera QH 16 2
Mesoveliidae (Unident.) QH529999
1
Veliidae (Unident.) QH569999
4
Corixidae (Unident.) QH659999
11
Lepidoptera QL 2 2
Crambidae (Unident.) QL019999
2
Crambidae (Unident.)
Odonata QO 26 3
Coenagrionidae (Unident.) QO029999
14
Gomphidae (Unident.) QO139999
2
Libellulidae (Unident.) QO179999
10
Trichoptera QT 24 8
Hydroptilidae (Unident.) QT039999
6
Leptoceridae (Unident.) QT259999
18
ORDER
SIGNALT 2.9
Weighted SIGNALT 2.7