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Catchments
Yarra River Catchment
ME_YMR112
Site visits
05-01-2020
Merri Creek, u/s of St Georges Rd Bridge, North Fitzroy
Melbourne
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ME_YMR112 Yarra River Catchment
Sunday 5th January 2020 14:00pm
Approved
Notes
Physical Chemical Tests
Ammonium
0
mg/L NH4+
Dissolved Oxygen % Saturation
44.62
%
Dissolved Oxygen mg/L
4
mg/L
Electrical Conductivity
1390
µS/cm
pH
7.8
pH Units
Reactive Phosphate (mg/L)
0.25
mg/L P
Temperature - AIR
16.7
° C
Temperature - WATER
20.5
° C
Turbidity - NTU
9
NTU
Water Conditions
Weather
Overcast
Last rainfall
During the last 24 hours
4.00
Flow estimate
MEDIUM: flow is normal/typical average flow
Water Appearance
Stained brown
Stream depth
Stream width
Hazards
Litter/Pollutants
Water Bugs
Agreed Level Taxonomy Method
Image
Species
Score
Quantity
a. Family Hydropsychidae (net spinning caddis)
6
30
c. Family Sphaeriidae and Family Corbiculidae (basket and pea shells)
5
25
c. Family Veliidae/ Family Mesoveliidae/ Family Hebridae (water treaders)
1
3
c. Phylum Annelida, class Hirudinea, (leeches)
1
5
d. Family Simuliidae (black fly larvae)
5
3
d. Phylum Annelida, class Oligochaeta, (worms)
2
1
e. Family Chironomidae, several genera (blood worms)
4
30
e. Family Lestidae and Family Coenagrionidae (Damselfly nymph)
1
20
f. Order Amphipoda (scuds, sideswimmers)
3
1
g. Family Chironomidae (chironomids - True Fly larvae)
4
30
g. Family Physidae, Species Physa acuta (snail)
2
6
h. Family Notonectidae , Genus Enithares (robust backswimmers)
3
4
h. Family Planorbidae, various genera (planorbids - snails)
1
1
j. Family Dytiscidae, various genera (little diving beetles)
1
3
l. Family Culicidae (mosquito larvae, wrigglers)
1
3
m. Family Corixidae , Genus Micronecta (little brindle boatman)
3
30
m. Family Syrphidae (rat tailed maggot)
2
2
o. Family Corixidae genus Agraptocorixa (static boatmen)
1
1
t. Family Leptoceridae, Genus Notalina (Headbanger caddis)
6
10
ALT
Signal Score
2.74
Weighted
ALT
Signal Score
3.29
Diary photos
No diary entries recorded for this visit
Physical Chemical Trends
Loading chart
Test 1
Ammonia-Nitrogen
Ammonium
Dissolved Oxygen mg/L
Filterable Reactive Phosphorus
Nitrate - Nitrogen
Temperature - WATER
Temperature - AIR
pH
Electrical Conductivity
Reactive Phosphate (mg/L)
Dissolved Oxygen % Saturation
Turbidity - NTU
Test 2
Ammonia-Nitrogen
Ammonium
Dissolved Oxygen mg/L
Filterable Reactive Phosphorus
Nitrate - Nitrogen
Temperature - WATER
Temperature - AIR
pH
Electrical Conductivity
Reactive Phosphate (mg/L)
Dissolved Oxygen % Saturation
Turbidity - NTU
Mininum standard
Any level
Level 1
Level 2
Level 3
Level 4
Start date
First data:
End date
Last data:
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05-01-2020
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