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  6. 07-02-2021

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

Melbourne

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ME_YMR112 Yarra River Catchment

Sunday 7th February 2021 14:00pm Approved
Notes

Physical Chemical Tests

Ammonium
0.04mg/L NH4+
Dissolved Oxygen % Saturation
79.62%
Dissolved Oxygen mg/L
7mg/L
Electrical Conductivity
750µS/cm
pH
8.1pH Units
Reactive Phosphate (mg/L)
0.1mg/L P
Temperature - AIR
20.1° C
Temperature - WATER
21.6° C
Turbidity - NTU
9NTU

Water Conditions

Weather
Cloudy
Last rainfall
During the last week
Flow estimate
HIGH: Less than bankfull and in-stream habitats connected
Water Appearance
Stained brown
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
c. Family Sphaeriidae and Family Corbiculidae (basket and pea shells) c. Family Sphaeriidae and Family Corbiculidae (basket and pea shells) 5 4
c. Family Veliidae/ Family Mesoveliidae/ Family Hebridae (water treaders) c. Family Veliidae/ Family Mesoveliidae/ Family Hebridae (water treaders) 1 10
Image
d. Family Hymenosomatidae (five cent crab, false spider crab) 3 8
Image
d. Family Simuliidae (black fly larvae) 5 50
d. Phylum Annelida, class Oligochaeta, (worms) d. Phylum Annelida, class Oligochaeta, (worms) 2 1
e. Family Chironomidae, several genera (blood worms) e. Family Chironomidae, several genera (blood worms) 4 5
e. Family Lestidae and Family Coenagrionidae (Damselfly nymph) e. Family Lestidae and Family Coenagrionidae (Damselfly nymph) 1 2
g. Family Chironomidae (chironomids - True Fly larvae) g. Family Chironomidae (chironomids - True Fly larvae) 4 2
g. Family Physidae, Species Physa acuta (snail) g. Family Physidae, Species Physa acuta (snail) 2 4
h. Family Notonectidae , Genus Enithares (robust backswimmers) h. Family Notonectidae , Genus Enithares (robust backswimmers) 3 5
m. Family Corixidae , Genus Micronecta (little brindle boatman) m. Family Corixidae , Genus Micronecta (little brindle boatman) 3 20
Image
t. Family Leptoceridae, Genus Notalina (Headbanger caddis) 6 30
ALT Signal Score 3.46
Weighted ALT Signal Score 3.94

Diary photos

No diary entries recorded for this visit

Physical Chemical Trends

Last data:
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