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

MERRI CREEK D/S STP 4631

Source EPA Victoria
Latest Sample Date 06-10-1997
Taxa count ORDER 12
Taxa count FAMILY 16
Taxa count ALT 16
Mayflies present? 2
ORDER FAMILY ALT
SIGNAL 3.2 3.1 2.9
Weighted SIGNAL 3.7 4.1

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Pastoral Farming 3.2.0 Grazing modified pastures 59.25% 14,989,141,496m2
  Residential And Infrastructure 5.4.1 Urban residential, 5.4.2 Rural residential with agriculture, 5.4.3 Rural residential without agriculture, 5.5.2 Public services, 5.5.3 Recreation and culture, 5.6.0 Utilities, 5.6.5 Electricity substations and transmission, 5.6.7 Water extraction and transmission, 5.7.2 Roads, 5.7.3 Railways, 5.7.5 Navigation and communication 32.69% 8,269,397,138m2
Show minor land uses 9
252,968,319m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Turbellaria IF 1 2
Dugesiidae (Unident.) IF619999
1
Gastropoda KG 4 1
Hydrobiidae (Unident.) KG029999
3
Physidae (Unident.) KG089999
1
Bivalvia KP 4 3
Corbiculidae (Unident.) KP029999
4
Oligochaeta LO 2 2
Oligochaeta (Unident.) LO999999
2
Amphipoda OP 402 3
Ceinidae (Unident.) OP029999
402
Ceinidae (Unident.)
Ceinidae (Unident.)
Ceinidae (Unident.)
Isopoda OR 32 2
Janiridae (Unident.) OR189999
32
Janiridae (Unident.)
Unknown OT 26
Atyidae (Unident.) OT019999
26
Atyidae (Unident.)
Atyidae (Unident.)
Unknown OV 2
Parastacidae (Unident.) OV019999
2
Parastacidae (Unident.)
Parastacidae (Unident.)
Coleoptera QC 61 5
Elmidae (Unident.) QC349999
9
Elmidae (Unident.)
Psephenidae (Unident.) QC379999
52
Psephenidae (Unident.)
Psephenidae (Unident.)
Diptera QD 30 3
Tanyderidae sp.(Unident.) QD039999
1
Orthocladiinae (Unident.) QDAF9999
25
Chironominae (Unident.) QDAJ9999
4
Ephemeroptera QE 2 9
Caenidae (Unident.) QE089999
2
Trichoptera QT 30 8
Hydropsychidae (Unident.) QT069999
30
ORDER
SIGNALT 3.2
Weighted SIGNALT 3.3