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  5. 31-10-2012

ME_YMR148 Merri Creek down stream of the Merlynston Creek confluence, Coborg

31 October 2012

Overview Notes Phy Chem Tests Creatures Diary Photos 0
Site visit details

Overview

Catchment Yarra River
Site Merri Creek down stream of the Merlynston Creek confluence, Coborg ME_YMR148
Date and Time Wednesday 31st October 2012 13:30pm
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 0 107.5 1271 8.11 0.15 31.3 21.6 9
Weather cloudy
Last rainfall More than a week ago
Flow estimate
Water Appearance Clear
Stream depth 0 - 50cm
Stream width 2m - 5m
Hazards
Litter/Pollutants

Creatures Agreed Level Taxonomy Method

Image Species Score Quantity
c. Family Atyidae (glass shrimp) 4 23
c. Family Veliidae/ Family Mesoveliidae/ Family Hebridae (water treaders) 3 2
c. Phylum Annelida, class Hirudinea, (leeches) c. Phylum Annelida, class Hirudinea, (leeches) 1 1
d. Phylum Annelida, class Oligochaeta, (worms) 1 10
e. Family Chironomidae, several genera (blood worms) 1 8
e. Family Lestidae and Family Coenagrionidae (Damselfly nymph) 2 3
e. Phylum Turbellaria ( flatworms) e. Phylum Turbellaria ( flatworms) 1 6
g. Family Physidae, Species Physa acuta (snail) 1 17
g. Order Isopoda, Family Janiridae (water slaters) g. Order Isopoda, Family Janiridae (water slaters) 3 3
h. Family Notonectidae , Genus Enithares (robust backswimmers) 1 2
ALT Signal Score 2.10
Weighted ALT Signal Score 2.28

Diary photos

No diary entries recorded for this visit

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