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  6. 05-02-2023

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

Melbourne

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ME_YMR112 Yarra River Catchment

Sunday 5th February 2023 14:00pm Approved
Notes

Physical Chemical Tests

Ammonium
0mg/L NH4+
Dissolved Oxygen % Saturation
97.48%
Dissolved Oxygen mg/L
9mg/L
Electrical Conductivity
900µS/cm
pH
7.9pH Units
Reactive Phosphate (mg/L)
0.07mg/L P
Temperature - AIR
21.1° C
Temperature - WATER
19.1° C
Turbidity - NTU
9NTU

Water Conditions

Weather
Cloudy
Last rainfall
During the last 24 hours
Flow estimate
HIGH: Less than bankfull and in-stream habitats connected
Water Appearance
Clear
Stream depth
 
Stream width
 
Hazards
 
Litter/Pollutants
bottles,plastic

Water Bugs Agreed Level Taxonomy Method

Image Species Score Quantity
Image
a. Family Hydropsychidae (net spinning caddis) 6 100
c. Family Atyidae (glass shrimp) c. Family Atyidae (glass shrimp) 3 16
Image
c. Family Isostictidae (Damselfly nymph) 3 9
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 4
Image
d. Family Simuliidae (black fly larvae) 5 1
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 1
f. Corduliid / libellulid like dragonflies - various families (spider mud eye) f. Corduliid / libellulid like dragonflies - various families (spider mud eye) 4 6
g. Family Chironomidae (chironomids - True Fly larvae) g. Family Chironomidae (chironomids - True Fly larvae) 4 30
g. Family Physidae, Species Physa acuta (snail) g. Family Physidae, Species Physa acuta (snail) 2 7
h. Family Notonectidae , Genus Enithares (robust backswimmers) h. Family Notonectidae , Genus Enithares (robust backswimmers) 3 30
Image
j. Family Dytiscidae, various genera (little diving beetles) 1 1
k. Family Dytiscidae, various genera (mixed diving beetles) k. Family Dytiscidae, various genera (mixed diving beetles) 4 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 1
Image
t. Family Leptoceridae, Genus Notalina (Headbanger caddis) 6 20
ALT Signal Score 3.44
Weighted ALT Signal Score 3.71

Diary photos

No diary entries recorded for this visit

Physical Chemical Trends

Last data:
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