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

DAWSON RIVER AT PARANUI 1303168

Source MIV
Latest Sample Date 19-08-1998
Taxa count ORDER 15
Taxa count FAMILY 32
Taxa count ALT 32
Mayflies present? 30
ORDER FAMILY ALT
SIGNAL 2.8 3 2.5
Weighted SIGNAL 3.5 3.4

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Minimal Use 1.3.0 Other minimal use, 1.3.3 Residual native cover, 2.1.0 Grazing native vegetation 78.34% 2,253,790,863,004m2
  Forestry 2.2.0 Production native forests 10.18% 293,024,812,061m2
  Natural 1.1.3 National park, 1.1.7 Other conserved area, 1.2.0 Managed resource protection 6.07% 174,747,291,565m2
  Arable Farming 3.3.0 Cropping, 3.4.0 Perennial horticulture, 4.3.0 Irrigated cropping, 4.3.1 Irrigated cereals, 4.3.6 Irrigated cotton, 4.4.0 Irrigated perennial horticulture 5.01% 144,128,665,694m2
Show minor land uses 8
28,770,998,361m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Gastropoda KG 27 1
Hydrobiidae (Unident.) KG029999
3
Thiaridae (Unident.) KG049999
4
Planorbidae (Unident.) KG079999
10
Physidae (Unident.) KG089999
10
Bivalvia KP 2 3
Corbiculidae (Unident.) KP029999
1
Sphaeriidae (Unident.) KP039999
1
Oligochaeta LO 1 2
Oligochaeta (Unident.) LO999999
1
Acarina MM 5 6
Mites (Unident.) MM999999
5
Mites (Unident.)
Unknown OG 10
Cladocera (Unident.) OG999999
10
Unknown OH 10
Ostracoda (Unident.) OH999999
10
Unknown OJ 10
Copepoda (Unident.) OJ999999
10
Unknown OT 13
Atyidae (Unident.) OT019999
12
Atyidae (Unident.)
Atyidae (Unident.)
Palaemonidae (Unident.) OT029999
1
Palaemonidae (Unident.)
Unknown OV 2
Parastacidae (Unident.) OV019999
2
Parastacidae (Unident.)
Parastacidae (Unident.)
Coleoptera QC 8 5
Dytiscidae (Unident.) QC099999
4
Hydrophilidae (Unident.) QC119999
3
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydraenidae (Unident.) QC139999
1
Hydraenidae (Unident.)
Diptera QD 52 3
Culicidae (Unident.) QD079999
20
Culicidae (Unident.)
Ceratopogonidae (Unident.) QD099999
14
Ceratopogonidae (Unident.)
Tanypodinae (Unident.) QDAE9999
9
Chironominae (Unident.) QDAJ9999
9
Ephemeroptera QE 30 9
Baetidae (Unident.) QE029999
10
Leptophlebiidae (Unident.) QE069999
10
Caenidae (Unident.) QE089999
10
Hemiptera QH 30 2
Veliidae (Unident.) QH569999
10
Gerridae (Unident.) QH579999
1
Corixidae (Unident.) QH659999
10
Notonectidae (Unident.) QH679999
8
Pleidae (Unident.) QH689999
1
Odonata QO 14 3
Coenagrionidae (Unident.) QO029999
9
Gomphidae (Unident.) QO139999
5
Trichoptera QT 10 8
Leptoceridae (Unident.) QT259999
10
ORDER
SIGNALT 2.8
Weighted SIGNALT 3.0