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  6. 31-10-2012

Merri Creek down stream of the Merlynston Creek confluence, Coborg

Melbourne

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ME_YMR148 Yarra River Catchment

Wednesday 31st October 2012 13:30pm Approved
Notes

Physical Chemical Tests

Ammonium
0mg/L NH4+
Dissolved Oxygen % Saturation
107.5%
Electrical Conductivity
1271µS/cm
pH
8.11pH Units
Reactive Phosphate (mg/L)
0.15mg/L P
Temperature - AIR
31.3° C
Temperature - WATER
21.6° C
Turbidity - NTU
9NTU

Water Conditions

Weather
Cloudy
Last rainfall
More than a week ago
Flow estimate
 
Water Appearance
Clear
Stream depth
0 - 50cm
Stream width
2m - 5m
Hazards
 
Litter/Pollutants

Water Bugs Agreed Level Taxonomy Method

Image Species Score Quantity
c. Family Atyidae (glass shrimp) c. Family Atyidae (glass shrimp) 4 23
c. Family Veliidae/ Family Mesoveliidae/ Family Hebridae (water treaders) c. Family Veliidae/ Family Mesoveliidae/ Family Hebridae (water treaders) 3 2
Image
c. Phylum Annelida, class Hirudinea, (leeches) 1 1
d. Phylum Annelida, class Oligochaeta, (worms) d. Phylum Annelida, class Oligochaeta, (worms) 1 10
e. Family Chironomidae, several genera (blood worms) e. Family Chironomidae, several genera (blood worms) 1 8
e. Family Lestidae and Family Coenagrionidae (Damselfly nymph) e. Family Lestidae and Family Coenagrionidae (Damselfly nymph) 2 3
Image
e. Phylum Turbellaria ( flatworms) 1 6
g. Family Physidae, Species Physa acuta (snail) g. Family Physidae, Species Physa acuta (snail) 1 17
Image
g. Order Isopoda, Family Janiridae (water slaters) 3 3
h. Family Notonectidae , Genus Enithares (robust backswimmers) h. Family Notonectidae , Genus Enithares (robust backswimmers) 1 2
ALT Signal Score 2.10
Weighted ALT Signal Score 2.28

Diary photos

No diary entries recorded for this visit

Physical Chemical Trends

Last data:
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