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

Tributary to Merrica River nr Ranger Station 32030

Source Office of Environment and Heritage
Latest Sample Date 23-11-2007
Taxa count ORDER 10
Taxa count FAMILY 26
Taxa count ALT 26
Mayflies present? 29
ORDER FAMILY ALT
SIGNAL 3.7 4 3.4
Weighted SIGNAL 4.7 4.9

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Natural 1.1.1 Strict nature reserves 97.68% 5,055,005,865m2
Show minor land uses 1
51,750,179m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Hirudinea LH 1 1
Glossiphoniidae (Unident.) LH019999
1
Acarina MM 3 6
Mites (Unident.) MM999999
3
Mites (Unident.)
Mites (Unident.)
Unknown OH 10
Ostracoda (Unident.) OH999999
10
Unknown OT 2
Atyidae (Unident.) OT019999
2
Atyidae (Unident.)
Atyidae (Unident.)
Coleoptera QC 24 5
Dytiscidae (Unident.) QC099999
3
Gyrinidae (Unident.) QC109999
18
Gyrinidae (Unident.)
Gyrinidae (Unident.)
Staphylinidae (Unident.) QC189999
1
Scirtidae (Unident.) QC209999
2
Scirtidae (Unident.)
Scirtidae (Unident.)
Diptera QD 17 3
Dixidae (Unident.) QD069999
1
Dixidae (Unident.)
Ceratopogonidae (Unident.) QD099999
2
Ceratopogonidae (Unident.)
Athericidae (Unident.) QD229999
4
Athericidae (Unident.)
Athericidae (Unident.)
Athericidae (Unident.)
Athericidae (Unident.)
Tanypodinae (Unident.) QDAE9999
4
Orthocladiinae (Unident.) QDAF9999
4
Chironominae (Unident.) QDAJ9999
2
Ephemeroptera QE 29 9
Leptophlebiidae (Unident.) QE069999
29
Hemiptera QH 8 2
Veliidae (Unident.) QH569999
7
Notonectidae (Unident.) QH679999
1
Odonata QO 28 3
Coenagrionidae (Unident.) QO029999
1
Megapodagrionidae (Unident.) QO079999
7
Synlestidae (Unident.) QO089999
1
Aeshnidae (Unident.) QO129999
1
Corduliidae (Unident.) QO169999
18
Trichoptera QT 28 8
Hydroptilidae (Unident.) QT039999
1
Polycentropodidae (Unident.) QT079999
1
Odontoceridae (Unident.) QT229999
2
Leptoceridae (Unident.) QT259999
24
ORDER
SIGNALT 3.7
Weighted SIGNALT 4.6