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  6. 02-04-2023

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

Melbourne

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ME_YMR112 Yarra River Catchment

Sunday 2nd April 2023 14:00pm Approved
Notes

Physical Chemical Tests

Ammonium
0mg/L NH4+
Dissolved Oxygen % Saturation
86.61%
Dissolved Oxygen mg/L
8mg/L
Electrical Conductivity
740µS/cm
pH
7.7pH Units
Reactive Phosphate (mg/L)
0.07mg/L P
Temperature - AIR
22.1° C
Temperature - WATER
19.1° C
Turbidity - NTU
16NTU

Water Conditions

Weather
Sunny
Last rainfall
During the last 24 hours
Flow estimate
MEDIUM: flow is normal/typical average flow
Water Appearance
Milky
Stream depth
 
Stream width
 
Hazards
 
Litter/Pollutants
paper,plastic,cans,packets

Water Bugs Agreed Level Taxonomy Method

Image Species Score Quantity
Image
a. Family Hydropsychidae (net spinning caddis) 6 30
c. Family Atyidae (glass shrimp) c. Family Atyidae (glass shrimp) 3 18
c. Family Sphaeriidae and Family Corbiculidae (basket and pea shells) c. Family Sphaeriidae and Family Corbiculidae (basket and pea shells) 5 30
Image
d. Family Hymenosomatidae (five cent crab, false spider crab) 3 17
e. Family Hydrobiidae - Potamopyrgus antipodarum (species - snail) e. Family Hydrobiidae - Potamopyrgus antipodarum (species - snail) 3 1
f. Corduliid / libellulid like dragonflies - various families (spider mud eye) f. Corduliid / libellulid like dragonflies - various families (spider mud eye) 4 1
g. Family Chironomidae (chironomids - True Fly larvae) g. Family Chironomidae (chironomids - True Fly larvae) 4 5
Image
g. Family Hydrophilidae Genus Hydrophilus (Ugly Bob) 2 1
g. Family Physidae, Species Physa acuta (snail) g. Family Physidae, Species Physa acuta (snail) 2 4
i. Family Aeshnidae (Dragonfly nymph - Couta mud eye) i. Family Aeshnidae (Dragonfly nymph - Couta mud eye) 4 1
i. Family Notonectidae , Genus Anisops (slender backswimmers) i. Family Notonectidae , Genus Anisops (slender backswimmers) 2 5
Image
l. Family Culicidae (mosquito larvae, wrigglers) 1 1
m. Family Corixidae , Genus Micronecta (little brindle boatman) m. Family Corixidae , Genus Micronecta (little brindle boatman) 3 30
q. Family Leptoceridae, Genus Triplectides (stick caddis) q. Family Leptoceridae, Genus Triplectides (stick caddis) 3 6
ALT Signal Score 3.21
Weighted ALT Signal Score 3.59

Diary photos

Physical Chemical Trends

Last data:
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