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WaterWatch Data Portal

ME_YMR190 Yarra River Catchment

Thursday 20th December 2012 10:45am Approved
Notes

Physical Chemical Tests

Ammonium
0mg/L NH4+
Dissolved Oxygen % Saturation
110%
Dissolved Oxygen mg/L
10.2mg/L
Electrical Conductivity
1766µS/cm
pH
8.24pH Units
Reactive Phosphate (mg/L)
0.08mg/L P
Temperature - AIR
20.6° C
Temperature - WATER
19.8° C
Turbidity - NTU
9NTU

Water Conditions

Weather
Sunny
Last rainfall
During the last 24 hours 3
Flow estimate
 
Water Appearance
Clear
Stream depth
51cm - 99cm
Stream width
2m - 5m
Hazards
 
Litter/Pollutants

Water Bugs Agreed Level Taxonomy Method

Image Species Score Quantity
Image
a. Family Hydropsychidae (net spinning caddis) 6 1
c. Family Veliidae/ Family Mesoveliidae/ Family Hebridae (water treaders) c. Family Veliidae/ Family Mesoveliidae/ Family Hebridae (water treaders) 3 6
e. Family Chironomidae, several genera (blood worms) e. Family Chironomidae, several genera (blood worms) 1 10
e. Family Hydrobiidae - Potamopyrgus antipodarum (species - snail) e. Family Hydrobiidae - Potamopyrgus antipodarum (species - snail) 1 4
e. Family Lestidae and Family Coenagrionidae (Damselfly nymph) e. Family Lestidae and Family Coenagrionidae (Damselfly nymph) 2 12
f. Corduliid / libellulid like dragonflies - various families (spider mud eye) f. Corduliid / libellulid like dragonflies - various families (spider mud eye) 5 5
Image
f. Order Amphipoda (scuds, sideswimmers) 3 40
g. Family Chironomidae (chironomids - True Fly larvae) g. Family Chironomidae (chironomids - True Fly larvae) 3 20
g. Family Physidae, Species Physa acuta (snail) g. Family Physidae, Species Physa acuta (snail) 1 6
Image
h. Family Dytiscidae, (taper-tailed tigers) 2 1
i. Family Aeshnidae (Dragonfly nymph - Couta mud eye) i. Family Aeshnidae (Dragonfly nymph - Couta mud eye) 5 10
i. Family Notonectidae , Genus Anisops (slender backswimmers) i. Family Notonectidae , Genus Anisops (slender backswimmers) 1 8
Image
l. Family Dytiscidae, various genera (stealth diving beetles) 1 1
m. Family Corixidae , Genus Micronecta (little brindle boatman) m. Family Corixidae , Genus Micronecta (little brindle boatman) 2 200
Image
p. Family Leptoceridae Unidentified, various genera (Caddis fly larvae) 6 50
Image
t. Family Leptoceridae, Genus Notalina (Headbanger caddis) 6 5
ALT Signal Score 3.25
Weighted ALT Signal Score 3.28

Diary photos

No diary entries recorded for this visit

Physical Chemical Trends

Last data: