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  5. 17-04-2013

ME_YMR190 Merri Creek @ O'Hearns Rd, Somerton

17 April 2013

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

Overview

Catchment Yarra River
Site Merri Creek @ O'Hearns Rd, Somerton ME_YMR190
Date and Time Wednesday 17th April 2013 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 NTU
Sample 0 108 11.14 1116 8.39 0.07 21 14.6 9
Weather cloudy
Last rainfall During the last week
Flow estimate HIGH: Less than bankfull and in-stream habitats connected
Water Appearance
Stream depth 51cm - 99cm
Stream width 2m - 5m
Hazards
Litter/Pollutants

Creatures Agreed Level Taxonomy Method

Image Species Score Quantity
a. Family Hydropsychidae (net spinning caddis) a. Family Hydropsychidae (net spinning caddis) 6 50
a. Family Psephenidae, Genus Sclerocyphon (water pennies) a. Family Psephenidae, Genus Sclerocyphon (water pennies) 6 3
c. Family Atyidae (glass shrimp) 4 20
c. Family Sphaeriidae and Family Corbiculidae (basket and pea shells) 4 2
c. Family Veliidae/ Family Mesoveliidae/ Family Hebridae (water treaders) 3 2
d. Family Simuliidae (black fly larvae) d. Family Simuliidae (black fly larvae) 5 100
e. Family Chironomidae, several genera (blood worms) 1 5
e. Family Lestidae and Family Coenagrionidae (Damselfly nymph) 2 20
e. Phylum Turbellaria ( flatworms) e. Phylum Turbellaria ( flatworms) 1 1
f. Corduliid / libellulid like dragonflies - various families (spider mud eye) 5 5
f. Order Amphipoda (scuds, sideswimmers) f. Order Amphipoda (scuds, sideswimmers) 3 100
g. Family Chironomidae (chironomids - True Fly larvae) 3 20
g. Family Physidae, Species Physa acuta (snail) 1 20
h. Family Notonectidae , Genus Enithares (robust backswimmers) 1 10
h. Family Planorbidae, various genera (planorbids - snails) 2 2
i. Family Aeshnidae (Dragonfly nymph - Couta mud eye) 5 1
i. Family Dytiscidae, (two-tailed tigers) 2 1
k. Family Dytiscidae, various genera (mixed diving beetles) 1 2
m. Family Corixidae , Genus Micronecta (little brindle boatman) 2 100
q. Family Leptoceridae, Genus Triplectides (stick caddis) 4 20
t. Family Leptoceridae, Genus Notalina (Headbanger caddis) t. Family Leptoceridae, Genus Notalina (Headbanger caddis) 6 3
ALT Signal Score 3.57
Weighted ALT Signal Score 3.59

Diary photos

No diary entries recorded for this visit

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