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  6. 02-03-2014

Blackburn Lake at Heron Point opposite Naughton Gve Blackburn

Melbourne

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ME_YGR023 Yarra River Catchment

Sunday 2nd March 2014 10:30am Approved
Notes

Physical Chemical Tests

Ammonium
0.03mg/L NH4+
Dissolved Oxygen % Saturation
68%
Dissolved Oxygen mg/L
6mg/L
Electrical Conductivity
190µS/cm
pH
pH Units
Reactive Phosphate (mg/L)
0.01mg/L P
Temperature - AIR
18° C
Temperature - WATER
19.5° C
Turbidity - NTU
20NTU

Water Conditions

Weather
Sunny
Last rainfall
During the last week
Flow estimate
MEDIUM: flow is normal/typical average flow
Water Appearance
Stained brown
Stream depth
1m - 2m
Stream width
2m - 5m
Hazards
 
Litter/Pollutants
plastic

Habitat

Bank Erosion Stability Bank Vegetation In Stream Cover Riffles Pools Bends Verge Vegetation Overall
Fair 3 Good 8 Good 8 Poor 2 Good 8 Good 29

Water Bugs WaterWatch method

Image Species Score Quantity
Image
Caddis-fly Larvae (Trichoptera) 7 3
Image
Mayfly nymph (Ephemeroptera) 7 1
Image
Damselfly Nymph (Odonata) 6 1
Image
Freshwater Shrimp/Prawn (Atyidae) 5 7
Image
Yabbies/Marron/Gilgie Freshwater (Decapoda) 5 1
Image
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) 4 50
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: 64 Total score: 35 Overall rating: Poor

Diary photos

No diary entries recorded for this visit

Physical Chemical Trends

Last data:
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