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  6. 23-11-2025

Tirhatuan Wetlands, off Dandenong Creek, Rowville

Melbourne

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ME_DTW100 Dandenong Catchment

Sunday 23rd November 2025 9:30am Approved
Notes

Physical Chemical Tests

Ammonium
0mg/L NH4+
Dissolved Oxygen % Saturation
44.85%
Dissolved Oxygen mg/L
4.2mg/L
Electrical Conductivity
220µS/cm
pH
6.8pH Units
Reactive Phosphate (mg/L)
0.007mg/L P
Temperature - AIR
16.2° C
Temperature - WATER
18.5° C
Turbidity - FTU
43FTU

Water Conditions

Weather
Overcast
Last rainfall
During the last 24 hours
Flow estimate
PERMANENT: wetlands and lakes
Water Appearance
Clear
Stream depth
 
Stream width
 
Hazards
 
Litter/Pollutants
 

Water Bugs WaterWatch method

Image Species Score Quantity
Image
Caddis-fly Larvae (Trichoptera) 7 1
Image
Damselfly Nymph (Odonata) 6 25
Image
Dragonfly Nymph (Odonata) 6 15
Image
Beetle larvae (Coleoptera) 4 2
Flatworms (Turbellaria) Flatworms (Turbellaria) 2 2
Image
Freshwater Snails (Gastropoda) 3 3
Image
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) 4 30
Image
Non Biting Midge Larvae - Bloodworms (Diptera) 1 6
Image
Segmented Worm (Oligochaeta) 1 13
Total bug score
Total abundance 0 - 35 35+
0 - 200 Poor Good
200+ Fair Very good
Total abundance: 97 Total score: 34 Overall rating: Poor

Diary photos

No diary entries recorded for this visit

Physical Chemical Trends

Last data:
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