Waterwatch Data Portal
CO_YAR240 Yarrowee River at Junction Bridge, Mt Mercer
7 February 2010
Site visit details
Overview
| Catchment | Barwon River |
|---|---|
| Site | Yarrowee River at Junction Bridge, Mt Mercer CO_YAR240 |
| Date and Time | Sunday 7th February 2010 11:00am |
| Approved | Approved |
Physical Chemical Tests
| D.O. % | D.O mg/L | EC µS/cm | pH pH Units | rP mg/L P | Air ° C | Water ° C | Turb NTU | |
|---|---|---|---|---|---|---|---|---|
| Sample | 40 | 3.5 | 1780 | 8 | 0.6 | 21 | 17 | 10 |
| Weather | sunny |
|---|---|
| Last rainfall | During the last week |
| Flow estimate | MEDIUM: flow is normal/typical average flow |
| Water Appearance | Clear |
| Stream depth | 1m - 2m |
| Stream width | >5m |
| Hazards | |
| Litter/Pollutants |
Creatures Waterwatch method
| Image | Species | Score | Quantity |
|---|---|---|---|
|
Caddis-fly Larvae (Trichoptera) | 7 | 34 |
|
Mayfly nymph (Ephemeroptera) | 7 | 1 |
|
Stonefly nymph (Plecoptera) | 8 | 2 |
|
Damselfly Nymph (Odonata) | 6 | 1 |
| Flatworms (Turbellaria) | 3 | 15 | |
|
Freshwater Snails (Gastropoda) | 3 | 10 |
|
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) | 4 | 70 |
|
Non Biting Midge Larvae - Bloodworms (Diptera) | 1 | 35 |
| Total bug score | ||
|---|---|---|
| Total abundance | 0 - 35 | 35+ |
| 0 - 200 | Poor | Good |
| 200+ | Fair | Very good |
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