Site visit details

Overview

Catchment Yarra River
Site Merri Creek @ O'Hearns Rd, Somerton ME_YMR190
Date and Time Thursday 21st April 2011 14:30pm
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 0.02 86.52 8 420 8.2 0.1 23.1 19.1 6
Weather sunny
Last rainfall During the last 24 hours
Flow estimate
Water Appearance Other
Stream depth
Stream width
Hazards
Litter/Pollutants

Creatures Waterwatch method

Image Species Score Quantity
Caddis-fly Larvae (Trichoptera) Caddis-fly Larvae (Trichoptera) 7 4
Mayfly nymph (Ephemeroptera) Mayfly nymph (Ephemeroptera) 7 1
Damselfly Nymph (Odonata) Damselfly Nymph (Odonata) 6 6
Freshwater Shrimp/Prawn (Atyidae) Freshwater Shrimp/Prawn (Atyidae) 5 1
Freshwater Snails (Gastropoda) Freshwater Snails (Gastropoda) 3 25
Side Swimmer/Scud (Amphipoda) Side Swimmer/Scud (Amphipoda) 4 10
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) 4 30
Biting Midge Larvae (Diptera) Biting Midge Larvae (Diptera) 2 15
Total bug score
Total abundance 0 - 35 35+
0 - 200 Poor Good
200+ Fair Very good
Total abundance: 92 Total score: 38 Overall rating: Good

Diary photos

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