Site Visit #2316536 04-12-2011 | CO_YAR240: Yarrowee River at Junction Bridge, Mt Mercer

WaterWatch Data Portal

CO_YAR240 Barwon River Catchment

Sunday 4th December 2011 11:50am Approved

Notes

Physical Chemical Tests

Dissolved Oxygen % Saturation

88.7%

Dissolved Oxygen mg/L

8.8mg/L

Electrical Conductivity

1080µS/cm

pH

7.5pH Units

Reactive Phosphate (mg/L)

0.14mg/L P

Temperature - AIR

15° C

Temperature - WATER

15.6° C

Turbidity - NTU

10NTU

Water Conditions

Weather

Cloudy

Last rainfall

During the last week 1.50

Flow estimate

MEDIUM: flow is normal/typical average flow

Water Appearance

Stream depth

Other:5m

Stream width

Other:19m

Hazards

Litter/Pollutants

Water Bugs WaterWatch method

Species	Score	Quantity
Caddis-fly Larvae (Trichoptera)	7	10
Mayfly nymph (Ephemeroptera)	7	25
Freshwater Shrimp/Prawn (Atyidae)	5	15
Water mites (Acarina)	5	4
Flatworms (Turbellaria)	3	10
Freshwater Snails (Gastropoda)	3	5
Side Swimmer/Scud (Amphipoda)	4	400
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera)	4	100
Mosquito Larvae (Diptera)	2	5
Non Biting Midge Larvae - Bloodworms (Diptera)	1	6

	Total bug score
Total abundance	0 - 35	35+
0 - 200	Poor	Good
200+	Fair	Very good

Total abundance: 580 Total score: 40 Overall rating: Very Good

Diary photos

No diary entries recorded for this visit

Physical Chemical Trends

Test 1

Test 2

Mininum standard

Start date First data:

End date Last data:

We acknowledge and respect Victorian Traditional Owners as the original custodians of Victoria’s land and waters, their unique ability to care for Country and deep spiritual connection to it.
We honour Elders past and present whose knowledge and wisdom has ensured the continuation of culture and traditional practices.

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