Site visit details

Overview

Catchment Yarra River
Site Nerreman Wetland @ Eltham ME_YDI833
Date and Time Wednesday 31st October 2012 09:30am
Approved Approved

Notes

Physical Chemical Tests

Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L EC µS/cm FrP mg/L P Nitrate-Nit mg/L N pH pH Units rP mg/L P Air ° C Water ° C Turb NTU
Sample 0.1 3 500 7.2 0.17 30.7 20.2 9
Weather windy
Last rainfall During the last week 10.7
Flow estimate STAGNANT: No continuous flow in channel but channel continuous (in-stream habitats connected)
Water Appearance Other: surface covered with debris
Stream depth 51cm - 99cm
Stream width >5m
Hazards Large branch from Eucalyptus tree fallen across the waterway
Litter/Pollutants bottles,cans,packets,paper,plastic,polystyrene,other
Other Pollutants: Cigarette butts, strapping, tree guards, cigarette packet, Orange mesh, Pollutants in pit drain: oranges, Balls, Tiny polystyrene balls (lots), bottles, cans Reactive Phosphate was very high, had to dilute sample 3 times.

Creatures Waterwatch method

Image Species Score Quantity
Dragonfly Nymph (Odonata) Dragonfly Nymph (Odonata) 6 2
Aquatic Beetles - Diving Beetles, Whirligig Beetles (Coleoptera) Aquatic Beetles - Diving Beetles, Whirligig Beetles (Coleoptera) 3 1
Flatworms (Turbellaria) 3 12
Freshwater Snails (Gastropoda) Freshwater Snails (Gastropoda) 3 13
Hydra (Hydrozoa) Hydra (Hydrozoa) 4 25
Leeches (Hirudinea) Leeches (Hirudinea) 3 5
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) 4 12
Mosquito Larvae (Diptera) Mosquito Larvae (Diptera) 2 5
Non Biting Midge Larvae - Bloodworms (Diptera) Non Biting Midge Larvae - Bloodworms (Diptera) 1 36
Segmented Worm (Oligochaeta) Segmented Worm (Oligochaeta) 1 7
Total bug score
Total abundance 0 - 35 35+
0 - 200 Poor Good
200+ Fair Very good
Total abundance: 118 Total score: 29 Overall rating: Poor

Diary photos

No diary entries recorded for this visit

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