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  6. 20-04-2011

Merri Creek down stream of the Merlynston Creek confluence, Coborg

Melbourne

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ME_YMR148 Yarra River Catchment

Wednesday 20th April 2011 14:30pm Approved
Notes

Physical Chemical Tests

Ammonium
0mg/L NH4+
Dissolved Oxygen % Saturation
105%
Electrical Conductivity
1040µS/cm
pH
8.2pH Units
Reactive Phosphate (mg/L)
0.13mg/L P
Temperature - AIR
19.1° C
Temperature - WATER
17.1° C
Turbidity - NTU
27NTU

Water Conditions

Weather
Raining
Last rainfall
 
Flow estimate
 
Water Appearance
Muddy
Stream depth
 
Stream width
 
Hazards
 
Litter/Pollutants
 

Water Bugs WaterWatch method

Image Species Score Quantity
Image
Caddis-fly Larvae (Trichoptera) 7 1
Image
Mayfly nymph (Ephemeroptera) 7 2
Image
Damselfly Nymph (Odonata) 6 3
Image
Yabbies/Marron/Gilgie Freshwater (Decapoda) 5 1
Flatworms (Turbellaria) Flatworms (Turbellaria) 3 1
Image
Freshwater Snails (Gastropoda) 3 20
Image
Leeches (Hirudinea) 3 5
Image
Side Swimmer/Scud (Amphipoda) 4 7
Image
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) 4 20
Image
Segmented Worm (Oligochaeta) 1 3
Total bug score
Total abundance 0 - 35 35+
0 - 200 Poor Good
200+ Fair Very good
Total abundance: 63 Total score: 42 Overall rating: Good

Diary photos

Physical Chemical Trends

Last data:
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