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  6. 03-06-2012

Blackburn Lake at Heron Point opposite Naughton Gve Blackburn

Melbourne

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ME_YGR023 Yarra River Catchment

Sunday 3rd June 2012 10:50am Approved
Notes

Physical Chemical Tests

Ammonium
0.05mg/L NH4+
Dissolved Oxygen % Saturation
55%
Dissolved Oxygen mg/L
6mg/L
Electrical Conductivity
180µS/cm
pH
7.3pH Units
Reactive Phosphate (mg/L)
0.03mg/L P
Temperature - AIR
10° C
Temperature - WATER
10° C
Turbidity - NTU
21NTU

Water Conditions

Weather
Overcast
Last rainfall
More than a week ago
Flow estimate
 
Water Appearance
Muddy
Stream depth
1m - 2m
Stream width
 
Hazards
 
Litter/Pollutants
bottles,packets,polystyrene

Water Bugs WaterWatch method

Image Species Score Quantity
Image
Caddis-fly Larvae (Trichoptera) 7 4
Image
Mayfly nymph (Ephemeroptera) 7 1
Image
Freshwater Shrimp/Prawn (Atyidae) 5 5
Flatworms (Turbellaria) Flatworms (Turbellaria) 3 1
Image
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) 4 33
Image
Non Biting Midge Larvae - Bloodworms (Diptera) 1 1
Total bug score
Total abundance 0 - 35 35+
0 - 200 Poor Good
200+ Fair Very good
Total abundance: 45 Total score: 26 Overall rating: Poor

Diary photos

No diary entries recorded for this visit

Physical Chemical Trends

Last data:
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