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  6. 01-03-2026

Merri Creek, u/s of St Georges Rd Bridge, North Fitzroy

Melbourne

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ME_YMR112 Yarra River Catchment

Sunday 1st March 2026 14:00pm Approved
Notes

Physical Chemical Tests

Ammonium
0mg/L NH4+
Dissolved Oxygen % Saturation
83.66%
Dissolved Oxygen mg/L
7mg/L
Electrical Conductivity
820µS/cm
pH
7.8pH Units
Reactive Phosphate (mg/L)
0.1mg/L P
Temperature - AIR
29.5° C
Temperature - WATER
24.2° C
Turbidity - NTU
9NTU

Water Conditions

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

Water Bugs Agreed Level Taxonomy Method

Image Species Score Quantity
Image
a. Family Hydropsychidae (net spinning caddis) 6 20
Image
a. Family Psephenidae, Genus Sclerocyphon (water pennies) 6 1
Image
b. Family Ancylidae (freshwater limpets) 4 1
c. Family Atyidae (glass shrimp) c. Family Atyidae (glass shrimp) 3 50
c. Family Sphaeriidae and Family Corbiculidae (basket and pea shells) c. Family Sphaeriidae and Family Corbiculidae (basket and pea shells) 5 2
Image
d. Family Hymenosomatidae (five cent crab, false spider crab) 3 12
Image
d. Family Simuliidae (black fly larvae) 5 1
e. Family Hydrobiidae - Potamopyrgus antipodarum (species - snail) e. Family Hydrobiidae - Potamopyrgus antipodarum (species - snail) 3 100
e. Family Lestidae and Family Coenagrionidae (Damselfly nymph) e. Family Lestidae and Family Coenagrionidae (Damselfly nymph) 1 3
Image
f. Family Lymnaeidae (lim nay ids - snail) 1 5
Image
t. Family Leptoceridae, Genus Notalina (Headbanger caddis) 6 10
ALT Signal Score 3.91
Weighted ALT Signal Score 3.72

Diary photos

Physical Chemical Trends

Last data:
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