Waterwatch Data Portal
ME_YMR112 Merri Creek, u/s of St Georges Rd Bridge, North Fitzroy
8 January 2023
Site visit details
Overview
| Catchment | Yarra River |
|---|---|
| Site | Merri Creek, u/s of St Georges Rd Bridge, North Fitzroy ME_YMR112 |
| Date and Time | Sunday 8th January 2023 14:00pm |
| Approved | Approved |
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 | 123.01 | 10 | 1220 | 8.4 | 0.02 | 33.1 | 25.7 | 60 |
| Weather | sunny |
|---|---|
| Last rainfall | During the last week |
| Flow estimate | |
| Water Appearance | Milky |
| Stream depth | |
| Stream width | |
| Hazards | |
| Litter/Pollutants |
Approx. 1 km upstream from the sampling site there was an inflow from a drain (at Albert st) that was causing a dramatic change in the turbidity of the water from clear to very milky. Upstream of this drain the turbidity was probably >9 NTU
Creatures Agreed Level Taxonomy Method
| Image | Species | Score | Quantity |
|---|---|---|---|
|
a. Family Hydropsychidae (net spinning caddis) | 6 | 40 |
|
a. Family Hyriidae (freshwater mussels) | 5 | 1 |
| c. Family Sphaeriidae and Family Corbiculidae (basket and pea shells) | 5 | 10 | |
|
d. Family Hymenosomatidae (five cent crab, false spider crab) | 3 | 12 |
| e. Family Chironomidae, several genera (blood worms) | 4 | 5 | |
| e. Family Lestidae and Family Coenagrionidae (Damselfly nymph) | 1 | 1 | |
| g. Family Chironomidae (chironomids - True Fly larvae) | 4 | 4 | |
| g. Family Physidae, Species Physa acuta (snail) | 2 | 5 | |
| h. Family Notonectidae , Genus Enithares (robust backswimmers) | 3 | 1 | |
|
j. Family Dytiscidae, various genera (little diving beetles) | 1 | 1 |
| l. Family Corixidae , Genus Sigara (striped boatman) | 4 | 2 | |
| m. Family Corixidae , Genus Micronecta (little brindle boatman) | 3 | 6 | |
| q. Family Leptoceridae, Genus Triplectides (stick caddis) | 3 | 2 | |
|
t. Family Leptoceridae, Genus Notalina (Headbanger caddis) | 6 | 12 |
| ALT Signal Score | 3.57 | ||
| Weighted ALT Signal Score | 4.10 | ||
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