Waterwatch Data Portal
ME_YDI833 Nerreman Wetland @ Eltham
24 March 2018
Overview
| Catchment | Yarra River |
|---|---|
| Site | Nerreman Wetland @ Eltham ME_YDI833 |
| Date and Time | Saturday 24th March 2018 09:30am |
| Approved | Approved |
Physical Chemical Tests
| Ammon-Nit mg/L NH3-N | N mg/L NH4+ | 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 | 6 | 23 | 20 | 10 |
| Weather | overcast |
|---|---|
| Last rainfall | During the last week 0.00 |
| Flow estimate | LOW: Minimum flow in channel/continuous flow in some part of channel (in-stream habitats connected) |
| Water Appearance | Clear,Scummy,Smelly,Foamy/frothy,Other |
| Stream depth | 0 - 50cm |
| Stream width | 2m - 5m |
| Hazards | |
| Litter/Pollutants | bottles,paper,plastic,cans,packets,polystyrene,other: Various balls including polystyrene balls. |
Oxygen saturation better than usual.
Flow was slow at first but then it started to rain heavily whilst we were collecting our waterbug sample. Flow then became rapid, with water cascading over the dam wall --- patches of foam flowing downstream. Water was pouring out of the upper drain. The water was only foamy after the rain started.
A walker said that he sees the male Kangaroo most mornings, (see last month's notes.) He mentioned that a female Kangaroo was killed on close-by Karingal Drive last week. He had also seen a Rat near the dam.
Cumbungi is starting to shed seeds.
Lots of seeds on all the weed Montbretia plants.
Pieces of a dead Duck beside the indigenous plantings.
Condition of the stream bed has changed --- muddier where gravel used to be.
A Spotted Marsh Frog was calling.
Creatures Agreed Level Taxonomy Method
| Image | Species | Score | Quantity |
|---|---|---|---|
| c. Family Veliidae/ Family Mesoveliidae/ Family Hebridae (water treaders) | 3 | 2 | |
|
c. Phylum Annelida, class Hirudinea, (leeches) | 1 | 2 |
| d. Phylum Annelida, class Oligochaeta, (worms) | 1 | 10 | |
| e. Family Chironomidae, several genera (blood worms) | 1 | 15 | |
|
e. Phylum Turbellaria ( flatworms) | 1 | 10 |
| g. Family Chironomidae (chironomids - True Fly larvae) | 3 | 1 | |
| g. Family Physidae, Species Physa acuta (snail) | 1 | 1 | |
| h. Family Notonectidae , Genus Enithares (robust backswimmers) | 1 | 20 | |
| m. Family Corixidae , Genus Micronecta (little brindle boatman) | 2 | 1 | |
| ALT Signal Score | 2.33 | ||
| Weighted ALT Signal Score | 2.53 | ||
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