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  6. 28-12-2025

Tirhatuan Wetlands, off Dandenong Creek, Rowville

Melbourne

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ME_DTW100 Dandenong Catchment

Sunday 28th December 2025 9:45am Approved
Notes

Physical Chemical Tests

Ammonium
0mg/L NH4+
Dissolved Oxygen % Saturation
60.5%
Dissolved Oxygen mg/L
5.4mg/L
Electrical Conductivity
250µS/cm
pH
7pH Units
Reactive Phosphate (mg/L)
0.023mg/L P
Temperature - AIR
18° C
Temperature - WATER
20.9° C
Turbidity - FTU
19FTU

Water Conditions

Weather
Sunny
Last rainfall
During the last week
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
Damselfly Nymph (Odonata) 6 7
Image
Dragonfly Nymph (Odonata) 6 1
Image
Aquatic Beetles - Diving Beetles, Whirligig Beetles (Coleoptera) 3 1
Image
Beetle larvae (Coleoptera) 4 3
Flatworms (Turbellaria) Flatworms (Turbellaria) 2 2
Image
Freshwater Snails (Gastropoda) 3 2
Image
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) 4 2
Image
Biting Midge Larvae (Diptera) 2 1
Image
Non Biting Midge Larvae - Bloodworms (Diptera) 1 3
Image
Segmented Worm (Oligochaeta) 1 3
Total bug score
Total abundance 0 - 35 35+
0 - 200 Poor Good
200+ Fair Very good
Total abundance: 25 Total score: 32 Overall rating: Poor

Diary photos

No diary entries recorded for this visit

Physical Chemical Trends

Last data:
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