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  4. ME_YDI833
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  6. 31-10-2012

Nerreman Wetland @ Eltham

Melbourne

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ME_YDI833 Yarra River Catchment

Wednesday 31st October 2012 9:30am Approved
Notes

Physical Chemical Tests

Ammonium
0.1mg/L NH4+
Dissolved Oxygen mg/L
3mg/L
Electrical Conductivity
500µS/cm
pH
7.2pH Units
Reactive Phosphate (mg/L)
0.17mg/L P
Temperature - AIR
30.7° C
Temperature - WATER
20.2° C
Turbidity - NTU
9NTU

Water Conditions

Weather
Windy
Last rainfall
During the last week 10.7
Flow estimate
STAGNANT: No continuous flow in channel but channel continuous (in-stream habitats connected)
Water Appearance
Other: surface covered with debris
Stream depth
51cm - 99cm
Stream width
>5m
Hazards
Large branch from Eucalyptus tree fallen across the waterway
Litter/Pollutants
bottles,cans,packets,paper,plastic,polystyrene,other

Water Bugs WaterWatch method

Image Species Score Quantity
Image
Dragonfly Nymph (Odonata) 6 2
Image
Aquatic Beetles - Diving Beetles, Whirligig Beetles (Coleoptera) 3 1
Flatworms (Turbellaria) Flatworms (Turbellaria) 3 12
Image
Freshwater Snails (Gastropoda) 3 13
Image
Hydra (Hydrozoa) 4 25
Image
Leeches (Hirudinea) 3 5
Image
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) 4 12
Image
Mosquito Larvae (Diptera) 2 5
Image
Non Biting Midge Larvae - Bloodworms (Diptera) 1 36
Image
Segmented Worm (Oligochaeta) 1 7
Total bug score
Total abundance 0 - 35 35+
0 - 200 Poor Good
200+ Fair Very good
Total abundance: 118 Total score: 29 Overall rating: Poor

Diary photos

No diary entries recorded for this visit

Physical Chemical Trends

Last data:
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We honour Elders past and present whose knowledge and wisdom has ensured the continuation of culture and traditional practices.
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