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  5. 03-03-2018

ME_YGR023 Blackburn Lake at Heron Point opposite Naughton Gve Blackburn

3 March 2018

Overview Notes Phy Chem Tests Creatures Diary Photos 3
Site visit details

Overview

Catchment Yarra River
Site Blackburn Lake at Heron Point opposite Naughton Gve Blackburn ME_YGR023
Date and Time Saturday 3rd March 2018 11:00am
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 FTU Turb NTU
Sample 0 72.78 6 160 7.1 0.017 25 25.1 38
Weather sunny
Last rainfall During the last week 1.60
Flow estimate STAGNANT: No continuous flow in channel but channel continuous (in-stream habitats connected)
Water Appearance Scummy,Stained brown
Stream depth 51cm - 99cm
Stream width
Hazards
Litter/Pollutants plastic,cans

Monitors: Su Dempsy, Elaine Boucher, John Shortridge, Tanveer Alvi

- Almost no litter, very clean

- Water appeared scummy and oily due to pollen dust

- 4 Pacific Black Ducks

- Weather was sunny with slight breeze

- Water was very still with only surface ripples

Creatures Waterwatch method

Image Species Score Quantity
Caddis-fly Larvae (Trichoptera) Caddis-fly Larvae (Trichoptera) 7 8
Mayfly nymph (Ephemeroptera) Mayfly nymph (Ephemeroptera) 7 6
Freshwater Shrimp/Prawn (Atyidae) Freshwater Shrimp/Prawn (Atyidae) 5 17
Yabbies/Marron/Gilgie Freshwater (Decapoda) Yabbies/Marron/Gilgie Freshwater (Decapoda) 5 3
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) 4 50
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: 85 Total score: 29 Overall rating: Poor

Diary photos

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