Skip to content
 
WaterWatch Data Portal

ME_YMR112 Yarra River Catchment

Sunday 6th April 2025 14:00pm Approved
Notes

Physical Chemical Tests

Ammonium
0.09mg/L NH4+
Dissolved Oxygen % Saturation
73.74%
Dissolved Oxygen mg/L
7mg/L
Electrical Conductivity
1130µS/cm
pH
8.3pH Units
Reactive Phosphate (mg/L)
0.06mg/L P
Temperature - AIR
21.1° C
Temperature - WATER
17.7° C
Turbidity - NTU
9NTU

Water Conditions

Weather
Overcast
Last rainfall
More than a week ago
Flow estimate
MEDIUM: flow is normal/typical average flow
Water Appearance
Clear
Stream depth
51cm - 99cm
Stream width
> 5m
Hazards
 
Litter/Pollutants
 

Water Bugs Agreed Level Taxonomy Method

Image Species Score Quantity
Image
a. Family Hydropsychidae (net spinning caddis) 6 2
Image
a. Family Psephenidae, Genus Sclerocyphon (water pennies) 6 8
c. Family Atyidae (glass shrimp) c. Family Atyidae (glass shrimp) 3 12
Image
c. Family Hydrobiosidae (hunter caddis) 8 1
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 30
Image
d. Family Simuliidae (black fly larvae) 5 6
e. Family Hydrobiidae - Potamopyrgus antipodarum (species - snail) e. Family Hydrobiidae - Potamopyrgus antipodarum (species - snail) 3 200
e. Family Lestidae and Family Coenagrionidae (Damselfly nymph) e. Family Lestidae and Family Coenagrionidae (Damselfly nymph) 1 1
g. Family Chironomidae (chironomids - True Fly larvae) g. Family Chironomidae (chironomids - True Fly larvae) 4 10
Image
t. Family Leptoceridae, Genus Notalina (Headbanger caddis) 6 30
ALT Signal Score 4.55
Weighted ALT Signal Score 4.28

Diary photos

Physical Chemical Trends

Last data: