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M2 Fonterra Floating Pontoon

Active Physico-Chemical 17-11-2013 - 10-05-2025

Merri River Estuary

127 results found (Displaying 1 - 25)
Date Status Details
10 May 2025 Pending
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 23.0 6.9 14.50 1.50 8.91 87.5 2.81
2.0m 23.0 6.9 14.20 1.50 3.81 37.2 2.81
12 Apr 2025 Pending Notes:

Pacific black duck, chestnut teal, purple swamphens, dusky moorhens, swallows, little pied cormorant, greater cormorant, little black cormorant, eurasian coots.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.0 7.4 17.60 1.60 8.89 93.2 2.98
1.9m 17.0 7.4 17.10 1.60 7.80 80.5 2.97
15 Mar 2025 Pending Notes:

Little ravens, pacific black ducks,purple swamphens, moorhens, swallows.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 6.7 22.60 1.70 4.22 49.8
2.0m 15.0 6.6 22.50 1.70 2.47 26.0
8 Feb 2025 Pending Notes:

Moorhen, Swamphen, Pacific black duck (many), Coot.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 19.0 7.7 21.70 1.70 6.40 73.6 3.22
1.7m 19.0 7.7 21.80 1.70 6.13 70.6 3.23
11 Jan 2025 Approved Notes:

Welcome swallows 4  fledglings.

Coots, Magpies

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.3 22.90 1.50 11.33 132.8 2.97
1.5m 9.0 8.1 22.40 1.60 8.24 96.5 3.00
7 Dec 2024 Approved Notes:

Pacific black ducks, Teal ducks.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 7.9 28.80 1.40 8.77 104.9 2.76
1.5m 15.0 7.9 22.70 1.40 8.91 103.4 2.75
9 Nov 2024 Approved Notes:

Pacific black duck, purple swamp hen, swallows, chestnut teal.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 8.1 18.30 1.40 10.41 110.6 3.55
1.5m 15.0 8.4 18.30 1.90 8.46 88.6 3.55
12 Oct 2024 Approved Notes:

Kerrie Robertson part of team.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 33.0 8.3 16.80 1.70 12.78 132.0 3.24
1.5m 33.0 8.4 16.60 1.70 10.97 112.9 3.25
14 Sep 2024 Approved Notes:

Thanks for the testing!  Interesting DO and turbidity results; high readings suggests a algal bloom happening!

Thanks

Jarred

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 50.0 8.2 13.00 1.70 15.80 152.5 3.29
1.5m 50.0 8.3 13.00 1.70 15.57 150.1 3.31
10 Aug 2024 Approved Notes:

Australasian grebes, Moor hens, Greater cormorants, Black faced cormorant, Australasian coot, Pacific black duck & Purple swamp hens.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 30.0 9.0 11.10 1.70 16.48 150.9 3.29
1.5m 30.0 9.1 11.00 1.70 16.04 145.3 3.31
13 Jul 2024 Approved Notes:

Royal spoonbill (2), grebe, pacific black ducks, dusky moorhen, new holland honey eaters, little pied cormorant, greater egret.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.2 10.40 1.40 8.53 75.3 2.75
1.5m 10.0 8.1 10.30 1.40 8.51 75.2 2.75
8 Jun 2024 Approved Notes:

Pied cormorants, australasian grebe, moorhens, australasian coots, purple swamp hens, great cormorant.

Great results - highly oxygenated and well mixed - just need some more rain and flow!  Excellent bird observations again too.  Thanks Jarred.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.0 8.0 11.60 1.30 13.87 128.0 2.56
1.5m 16.0 8.0 11.50 1.30 12.74 116.5 2.59
11 May 2024 Approved Notes:

Birds present at site

Australian coots

Masked lapwings

pacific black ducks

little black cormorants

pied cormorants

Australian grebes 

moorhens

 

*With new sampler difficulty turbidity at bottom may be increased.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.0 8.4 14.70 1.30 17.05 163.5 2.48
1.5m 16.0 8.4 14.50 1.20 13.80 137.9 2.36
13 Apr 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 7.8 16.70 1.40 6.48 67.5 2.66
1.5m 15.0 8.0 16.70 1.40 5.70 59.5 2.67
16 Mar 2024 Approved Notes:

Birds present at site

Pacific black duck

Little pied cormarant

Dusky moorhen

Chestnut Teal

Coots
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 8.1 20.20 1.40 5.50 60.7 2.66
1.7m 15.0 8.1 20.00 1.40 4.32 47.1 2.66
10 Feb 2024 Approved Notes:

There were two men fishing off the pontoon using rope with big hooks, dragging lots of items from the bottom of the river bed.  

Thanks for the report; very strange, and nothing that i've seen before.  I have seen people searching for old bottles, but not scrap metal.  
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 8.2 22.00 1.20 6.85 78.5 2.35
1.5m 20.0 8.2 21.90 1.20 5.73 67.0 2.35
13 Jan 2024 Approved Notes:

purple swamphen, hooded lapwing, pacific black duck, little grobe
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.0 8.5 23.10 1.00 9.01 105.6 1.91
1.5m 16.0 8.4 23.20 1.00 8.67 101.9 1.91
9 Dec 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 22.0 8.1 21.90 1.20 9.87 114.3 2.25
1.5m 22.0 8.1 21.90 1.20 10.12 113.3 2.36
11 Nov 2023 Approved Notes:

Possible dissolved oxygen issue with YSI meter.  Please check

Thanks guys - D.O. readings are high, but quite likely correct due to algae presence producing excess oxygen.  This is quite typical at this time of year due to extended sunlight and warming summer conditons.  Thanks for noticing the high level though - Jarred.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.5 8.3 20.50 1.30 14.44 155.6 2.44
1.5m 12.5 8.2 20.20 1.30 13.98 151.8 2.45
14 Oct 2023 Approved Notes:

Pacific black ducks, Cormorants (black faced), Large black cormorants (black faced),

Purple swamp hens, Swallows.

 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.0 8.4 16.40 1.40 14.71 150.1 2.76
1.5m 12.0 8.5 16.30 1.40 13.68 141.2 2.72
9 Sep 2023 Approved Notes:

ph meter failed to calibrate

 

Great results, highly oxygenated and looking good!  Thanks Jarred.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.0 11.70 1.30 12.09 113.0 2.57
1.8m 17.0 11.60 1.30 12.00 109.1 2.57
12 Aug 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.0 7.5 12.00 1.10 8.66 81.5 2.20
1.7m 16.0 7.7 11.90 1.10 7.73 72.2 2.23
15 Jul 2023 Approved Notes:

Pacific black duck, Chestnut teal, Purple swamphens, Moorhen-dusky.

 

Eleanor Cowell and James Cowell samplers.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 18.0 7.6 11.10 0.70 8.42 76.2 1.38
2.4m 18.0 7.6 11.00 0.70 8.35 74.3 1.43
17 Jun 2023 Approved Notes:

Great Egret, Little Pied Cormorant, Pacific Black Duck, Purple Swamp hens, Moorhens, Chestnut teal.

 

Unable to include other samplers as their names seem to have been deleted from list.

Eleanor Cowell, James Cowell and Jarred Obst
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 7.9 11.30 1.30 8.70 80.5 2.56
2.0m 13.0 7.8 11.30 1.30 7.60 71.3 2.47
13 May 2023 Approved Notes:

Egret, Coots, Little pied cormorants.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 13.40 1.30 7.26 69.0 2.48
1.7m 9.0 7.8 13.20 1.30 6.27 59.5 2.48
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