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

Medway Rivulet @ farm 23064

Source Office of Environment and Heritage
Latest Sample Date 29-04-2009
Taxa count ORDER 12
Taxa count FAMILY 17
Taxa count ALT 17
Mayflies present? 3
ORDER FAMILY ALT
SIGNAL 3.2 3.2 2.2
Weighted SIGNAL 3.1 2.8

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Pastoral Farming 3.2.0 Grazing modified pastures, 3.2.1 Native/exotic pasture mosaic, 3.2.3 Pasture legumes, 3.2.5 Sown grasses 64.93% 640,192,930m2
  Minimal Use 2.1.0 Grazing native vegetation 23.40% 230,659,586m2
  Residential And Infrastructure 5.4.0 Residential and farm infrastructure, 5.7.2 Roads, 5.7.3 Railways 6.17% 60,792,060m2
  Intensive Pastoral Farming 5.2.1 Dairy sheds and yards, 5.2.6 Horse studs 4.24% 41,778,906m2
Show minor land uses 1
9,859,321m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Gastropoda KG 9 1
Planorbidae (Unident.) KG079999
1
Physidae (Unident.) KG089999
8
Oligochaeta LO 5 2
Oligochaeta (Unident.) LO999999
5
Acarina MM 1 6
Mites (Unident.) MM999999
1
Mites (Unident.)
Unknown OH 5
Ostracoda (Unident.) OH999999
5
Unknown OT 16
Atyidae (Unident.) OT019999
16
Atyidae (Unident.)
Atyidae (Unident.)
Unknown OV 2
Parastacidae (Unident.) OV019999
2
Parastacidae (Unident.)
Parastacidae (Unident.)
Coleoptera QC 40 5
Dytiscidae (Unident.) QC099999
22
Hydrophilidae (Unident.) QC119999
15
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Scirtidae (Unident.) QC209999
3
Scirtidae (Unident.)
Diptera QD 36 3
Tipulidae (Unident.) QD019999
1
Chironominae (Unident.) QDAJ9999
35
Ephemeroptera QE 3 9
Baetidae (Unident.) QE029999
3
Hemiptera QH 4 2
Corixidae (Unident.) QH659999
2
Notonectidae (Unident.) QH679999
2
Odonata QO 19 3
Coenagrionidae (Unident.) QO029999
19
Trichoptera QT 2 8
Leptoceridae (Unident.) QT259999
2
ORDER
SIGNALT 3.2
Weighted SIGNALT 3.0