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

Gwydir R @ Talarang 65219

Source Office of Environment and Heritage
Latest Sample Date 11-04-2006
Taxa count ORDER 15
Taxa count FAMILY 34
Taxa count ALT 34
Mayflies present? 24
ORDER FAMILY ALT
SIGNAL 3.5 4.1 3.5
Weighted SIGNAL 4.7 4.9

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Minimal Use 1.3.0 Other minimal use, 2.1.0 Grazing native vegetation 57.67% 310,733,498,278m2
  Pastoral Farming 3.2.0 Grazing modified pastures, 3.2.2 Woody fodder plants, 3.2.3 Pasture legumes, 3.2.5 Sown grasses 33.34% 179,624,331,259m2
  Arable Farming 3.3.0 Cropping, 3.4.0 Perennial horticulture, 3.4.1 Tree fruits, 3.4.2 Olives, 3.4.9 Grapes, 3.5.0 Seasonal horticulture, 4.3.0 Irrigated cropping, 4.4.0 Irrigated perennial horticulture, 4.4.2 Irrigated olives 3.56% 19,163,768,621m2
Show minor land uses 10
5,388,142,445m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Turbellaria IF 1 2
Dugesiidae (Unident.) IF619999
1
Gastropoda KG 4 1
Planorbidae (Unident.) KG079999
1
Physidae (Unident.) KG089999
3
Bivalvia KP 2 3
Corbiculidae (Unident.) KP029999
2
Oligochaeta LO 1 2
Oligochaeta (Unident.) LO999999
1
Acarina MM 1 6
Mites (Unident.) MM999999
1
Mites (Unident.)
Unknown OH 2
Ostracoda (Unident.) OH999999
2
Unknown OJ 1
Copepoda (Unident.) OJ999999
1
Unknown OT 22
Atyidae (Unident.) OT019999
20
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Atyidae (Unident.)
Palaemonidae (Unident.) OT029999
2
Palaemonidae (Unident.)
Coleoptera QC 21 5
Dytiscidae (Unident.) QC099999
2
Gyrinidae (Unident.) QC109999
12
Gyrinidae (Unident.)
Gyrinidae (Unident.)
Hydrophilidae (Unident.) QC119999
3
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydraenidae (Unident.) QC139999
1
Hydraenidae (Unident.)
Elmidae (Unident.) QC349999
3
Elmidae (Unident.)
Diptera QD 39 3
Simuliidae (Unident.) QD109999
22
Simuliidae (Unident.)
Simuliidae (Unident.)
Tanypodinae (Unident.) QDAE9999
1
Orthocladiinae (Unident.) QDAF9999
12
Chironominae (Unident.) QDAJ9999
4
Ephemeroptera QE 24 9
Baetidae (Unident.) QE029999
6
Leptophlebiidae (Unident.) QE069999
10
Caenidae (Unident.) QE089999
8
Hemiptera QH 27 2
Veliidae (Unident.) QH569999
1
Gerridae (Unident.) QH579999
7
Corixidae (Unident.) QH659999
16
Notonectidae (Unident.) QH679999
3
Megaloptera QM 4 8
Corydalidae (Unident.) QM019999
4
Corydalidae (Unident.)
Odonata QO 3 3
Isostictidae (Unident.) QO039999
2
Aeshnidae (Unident.) QO129999
1
Trichoptera QT 49 8
Hydrobiosidae (Unident.) QT019999
1
Hydroptilidae (Unident.) QT039999
1
Hydropsychidae (Unident.) QT069999
23
Calamoceratidae (Unident.) QT249999
8
Leptoceridae (Unident.) QT259999
16
ORDER
SIGNALT 3.5
Weighted SIGNALT 4.1