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  5. 15-03-2020

ME_DEL300 Elster Creek

15 March 2020

Overview Notes Phy Chem Tests Creatures Diary Photos 5
Site visit details

Overview

Catchment Dandenong
Site Elster Creek ME_DEL300
Date and Time Sunday 15th March 2020 09:30am
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 rP mg/L P Air ° C Water ° C Turb NTU
Sample 0.1 43.8 4.4 1190 7.2 0.1 15 15 10
Weather cloudy
Last rainfall During the last week
Flow estimate LOW: Minimum flow in channel/continuous flow in some part of channel (in-stream habitats connected)
Water Appearance Scummy,Muddy
Stream depth 51cm - 99cm
Stream width 2m - 5m
Hazards
Litter/Pollutants plastic

Knootweed cleared upstream of lake but not near dam wall or in our test site.  Reeds encroached further.  Killing water ribbon. Other weeds have died off.

Little flow from lake, only flow from bypass.  Pump on.  Water level in creak lower and flow slower.  Grass on banks long.  Less brown algae in sample.  Less litter than  usual.

Cockatoos in trees (7) being chased by magpies.  

12/3/20  Saw guy cleaning out pump near dam wall.  From drainage and irrigation company employed by Citywide.  That pump takes water from our  EPN lake to EPS lake.  Goes on automatically when EPS lake low and enough water in EPN lake.  BYpass is gravity fed and gets first priority (drainage).   

Creatures Waterwatch method

Image Species Score Quantity
Leeches (Hirudinea) Leeches (Hirudinea) 3 5
Side Swimmer/Scud (Amphipoda) Side Swimmer/Scud (Amphipoda) 4 8
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) 4 11
Mosquito Larvae (Diptera) Mosquito Larvae (Diptera) 2 3
Non Biting Midge Larvae - Bloodworms (Diptera) Non Biting Midge Larvae - Bloodworms (Diptera) 1 34
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: 68 Total score: 15 Overall rating: Poor

Diary photos

upstream
across
downstream
from bridge
from upstream

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