Site visit details

Overview

Catchment Yarra River
Site Blackburn Lake at Heron Point opposite Naughton Gve Blackburn ME_YGR023
Date and Time Sunday 7th July 2019 12:00pm
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 0.08 70.07 8 130 6.8 0.017 13.5 9.5 16
Weather overcast
Last rainfall More than a week ago 15.00
Flow estimate STAGNANT: No continuous flow in channel but channel continuous (in-stream habitats connected)
Water Appearance Scummy
Stream depth 1m - 2m
Stream width
Hazards
Litter/Pollutants bottles,plastic,packets,polystyrene

Monitors: Su D., Wira Y., Alfoncina, Stepfanie, Amber, Arhaan, Azlaan, Tanveer

Lots of feathers on surface of water.

Note: Caddisfly larvae and Damselfly nymph are not mentioned in the uploaded Macros sheet, they were found later, after the sheets were scanned.

Creatures Waterwatch method

Image Species Score Quantity
Caddis-fly Larvae (Trichoptera) Caddis-fly Larvae (Trichoptera) 7 1
Damselfly Nymph (Odonata) Damselfly Nymph (Odonata) 6 1
Freshwater Shrimp/Prawn (Atyidae) Freshwater Shrimp/Prawn (Atyidae) 5 2
Water mites (Acarina) Water mites (Acarina) 5 20
Freshwater Snails (Gastropoda) Freshwater Snails (Gastropoda) 3 5
Leeches (Hirudinea) Leeches (Hirudinea) 3 1
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: 81 Total score: 34 Overall rating: Poor

Diary photos

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