Site visit details

Overview

Catchment Yarra River
Site Gardiners Creek upstream of Blackburn Lake, at Pobblebonk point, adjacent to Vegemite Creek ME_YGR006
Date and Time Saturday 30th January 2016 09:45am
Approved Approved

Notes

Physical Chemical Tests

Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O. % D.O mg/L EC µS/cm FrP mg/L P Nitrate-Nit mg/L N pH pH Units Rain mm rP mg/L P Air ° C Water ° C Turb FTU Turb NTU
Sample 0.07 41.49 1.7 120 6.7 0 16.9 17.1 50 70
Weather cloudy
Last rainfall During the last 24 hours
Flow estimate STAGNANT: No continuous flow in channel but channel continuous (in-stream habitats connected)
Water Appearance Other
Stream depth 1m - 2m
Stream width
Hazards
Litter/Pollutants bottles,paper,plastic,polystyrene

Monitors: Elaline, Su, Thanushi, John B., Anne

Changes since last monitored: Cumbungi 'buds' prolific

What stands out: Paperbark has come down (almost) midstream. Litter considerable.

Other observations: Weather has been cooler for a few days and plants greener.
2 Pacific black ducks, Dusky moorhen. Blackberries beginning to become prolific near bridge (between log and bridge)

Type of flow: water flowing back slightly

Creatures Waterwatch method

Image Species Score Quantity
Caddis-fly Larvae (Trichoptera) Caddis-fly Larvae (Trichoptera) 7 2
Damselfly Nymph (Odonata) Damselfly Nymph (Odonata) 6 2
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) 4 6
Non Biting Midge Larvae - Bloodworms (Diptera) Non Biting Midge Larvae - Bloodworms (Diptera) 1 1
Total bug score
Total abundance 0 - 35 35+
0 - 200 Poor Good
200+ Fair Very good
Total abundance: 11 Total score: 18 Overall rating: Poor

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