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Catchments
Yarra River Catchment
ME_YMR118
Site visits
13-12-2012
Merri Creek @Ceres East Brunswick
Melbourne
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ME_YMR118 Yarra River Catchment
Thursday 13th December 2012 12:29pm
Approved
Notes
Physical Chemical Tests
Ammonium
0
mg/L NH4+
Dissolved Oxygen % Saturation
77.8
%
Dissolved Oxygen mg/L
6.4
mg/L
Electrical Conductivity
1166
µS/cm
pH
7.82
pH Units
Reactive Phosphate (mg/L)
0.17
mg/L P
Temperature - AIR
33.5
° C
Temperature - WATER
25.3
° C
Turbidity - NTU
2
NTU
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
bottles,packets,plastic
Water Bugs
Agreed Level Taxonomy Method
Image
Species
Score
Quantity
b. Family Ecnomidae, Genus Ecnomus (bandit caddis)
4
5
c. Family Atyidae (glass shrimp)
4
2
c. Family Veliidae/ Family Mesoveliidae/ Family Hebridae (water treaders)
3
40
c. Phylum Annelida, class Hirudinea, (leeches)
1
1
d. Family Simuliidae (black fly larvae)
5
5
d. Phylum Annelida, class Oligochaeta, (worms)
1
10
e. Family Chironomidae, several genera (blood worms)
1
25
e. Family Lestidae and Family Coenagrionidae (Damselfly nymph)
2
7
e. Family Nepidae, Genus Ranatra (slender water scorpions/stick bug)
3
1
e. Phylum Turbellaria ( flatworms)
1
12
f. Corduliid / libellulid like dragonflies - various families (spider mud eye)
5
3
g. Family Physidae, Species Physa acuta (snail)
1
10
g. Order Isopoda, Family Janiridae (water slaters)
3
1
l. Family Dytiscidae, various genera (stealth diving beetles)
1
1
m. Family Corixidae , Genus Micronecta (little brindle boatman)
2
2
q. Family Leptoceridae, Genus Triplectides (stick caddis)
4
6
t. Family Leptoceridae, Genus Notalina (Headbanger caddis)
6
1
ALT
Signal Score
2.82
Weighted
ALT
Signal Score
2.62
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
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First data:
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