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M2 Fonterra Floating Pontoon

Active Physico-Chemical 17-11-2013 - 13-04-2024

Merri River Estuary

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114 results found (Displaying 1 - 50)
ID Date Status Details
#16111 13 Apr 2024 Pending
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
#16107 16 Mar 2024 Pending 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
#16009 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
#15957 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
#15912 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
#15836 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
#15795 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
#15758 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
#15696 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
#15659 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
#15581 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
#15522 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
#15459 15 Apr 2023 Approved Notes:

Great results - all very fresh and highly oxygenated which is great to see!
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 18.0 8.0 16.60 1.20 11.86 123.0 2.41
1.5m 18.0 8.2 16.60 1.20 11.53 118.9 2.41
#15344 11 Mar 2023 Approved Notes:

Moorhens, Swallows, Magpie larks, Dusty coots, Little black cormorants.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 8.3 18.30 1.20 14.30 155.1 2.26
1.6m 8.1 18.00 1.20 11.05 118.4 2.27
#15279 11 Feb 2023 Approved Notes:

Pacific black duck, Purple swamp hen, Magpie lark.

 

Jarred - great results as well.  Looks like a freshwater bloom happening up at Fonterra as well, with D.O.s very high!!
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.4 22.40 1.00 15.43 178.5 2.00
1.5m 10.0 8.5 22.40 1.00 12.60 138.6 2.00
#15222 14 Jan 2023 Approved Notes:

Pacific black ducks

 

D.O. data not recorded calibration failed
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.0 8.6 24.70 1.10 2.14
1.0m 14.0 8.7 24.30 1.10 2.14
#15166 10 Dec 2022 Approved Notes:

Dusky Moorhen, Reed Warblers, Pacific Black Ducks.

 

Jarred - thanks everyone.  Interesting to see the DO's in the upper water levels are on the rise - most likely being driven by warmer surface water driving algae growth, typical of the summer season.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 30.0 8.2 19.80 0.80 11.36 126.0 1.57
1.5m 30.0 7.9 18.90 0.80 8.15 89.0 1.54
#15070 8 Oct 2022 Approved Notes:

Thanks again Gary & Rachel.  Very fresh and turbid profile!  

As flagged Gary, we're currently looking at artificial opening at the Cutting so this information, particularly a consistent D.O. profile at or above 5mg/L, is really important to support such decision.  

Regards Jarred. 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.0 7.7 15.60 0.20 5.30 53.5 1.34
2.0m 17.0 7.7 14.90 0.70 4.88 49.4 1.33
#15009 10 Sep 2022 Approved Notes:

Water level high.  Stairs were cut off.  Had to enter pontoon on ramp.

Water was brown and murky.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.5 7.1 13.90 0.70 6.65 65.0 1.32
2.0m 12.5 7.3 12.90 0.70 5.66 54.2 1.34
#14939 13 Aug 2022 Approved Notes:

Pacific black ducks, Dusky moorhens, Swallows.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.1 11.30 1.60 8.48 79.3 3.00
1.5m 10.0 8.1 11.10 1.60 7.69 69.9 2.98
#14875 9 Jul 2022 Approved Notes:

Egret, Pacific black duck (2)

Great readings everyone - very consistent and dominated by winter freshwater following recent wet weather.  Thanks Jarred.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.6 10.70 1.80 9.75 89.1 3.42
1.5m 9.0 7.7 10.70 1.80 8.91 81.5 3.42
#14738 11 Jun 2022 Approved Notes:

Australian grebes, Moorhens, Little pied cormorant, White ibis.

 

Great data also.  Like the lower estuary site, June rainfall has increased streamflow and created a highly oxygenated freshwater profile.  Temps are dropping too!!  Great work, thanks.  Jarred O.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.7 10.50 1.30 11.01 99.1 2.49
1.7m 9.0 7.8 10.40 1.30 9.32 83.3 2.53
#14666 14 May 2022 Approved Notes:

Dusky moorhen, Pacific black duck, Chestnut teal, Little pied cormorant., 

 

Hi everyone, great data set once again & looks like some late season algal blooms have been persisting - shown by the high DO readings.  Typical of the Merri however, as Nitrate and Phosphurus levels are generally elevated in the catchment.  Thanks.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 19.0 8.3 14.80 1.30 14.78 146.4 2.59
1.5m 19.0 8.3 14.70 1.30 14.79 145.0 2.59
#14590 9 Apr 2022 Approved Notes:

Little pied cormorant, Moorhen, Pacific black duck.

 

Thanks again guys, really good results.  Some interesting D.O. readings (high), but quite expected due to on-going dry and warm weather.  Basically indicates some additional oxygen producing activity occurring, which most likely is algal growth/bloom.  Thanks Jarred.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 8.6 18.70 1.30 16.20 174.0 2.50
1.5m 13.0 8.6 18.30 1.30 13.50 140.3 2.51
#14577 27 Mar 2022 Approved Notes:

This observation carried out by Karen Wales and students from SWTAFE.

DO % sat not recorded.

Phosphorus 0.1
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.2 20.20 1.20 11.08 2.41
1.5m 10.0 8.2 19.70 1.20 9.56 2.40
#14491 12 Feb 2022 Approved Notes:

Pacific black duck, Moorhens.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 8.5 22.00 1.20 10.07 114.6 2.40
1.5m 15.0 8.6 21.90 1.20 7.92 90.8 2.41
#14399 11 Dec 2021 Approved Notes:

Pacific black duck, Pair plovers, Moor hen, Reed warbler, Masked lap wing.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.2 19.60 1.20 7.53 81.2 23.03
1.6m 9.0 8.3 19.10 1.20 6.05 65.1 22.98
#14346 13 Nov 2021 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.6 17.20 0.90 6.48 67.8 1.78
1.9m 9.0 7.6 16.90 0.90 5.03 51.6 1.78
#14312 9 Oct 2021 Approved Notes:

Reed warblers, Dusky moorhens.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.0 8.5 15.60 1.30 15.50 157.2 2.26
1.7m 17.0 8.5 15.10 1.20 12.70 125.0 2.25
#14282 11 Sep 2021 Approved Notes:

Dusky moorhen, Greater cormorant, Chestnut teal.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.1 14.30 1.10 8.00 77.9 2.16
1.7m 10.0 8.1 14.10 1.10 7.64 74.0 2.17
#14242 14 Aug 2021 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 22.0 8.0 11.30 0.60 7.22 66.0 1.12
2.5m 22.0 8.0 11.10 0.60 5.95 54.5 1.15
#14202 10 Jul 2021 Approved Notes:

Little Black Cormorants, Little Pied Cormorants, Pacific Black Duck, Chestnut Teal, Moor Hens with young.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.2 9.10 1.30 8.20 71.0 2.54
1.5m 9.0 8.3 8.90 1.30 8.08 70.0 2.52
#14161 12 Jun 2021 Approved Notes:

Black faced cormorant, Masked lapwing, Pacific black duck, Purple swamphens, Dusky moorhens, Australasian coots, Greater cormorant, Little black cormorants.

 

Fantastic bird observations! J.Obst
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.2 10.80 1.20 8.40 76.0 1.70
2.2m 9.0 8.1 11.20 1.40 6.66 57.2 2.02
#14125 8 May 2021 Approved Notes:

Littel Black Cormorants, Moorhens, Pacific Black Duck, 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 8.3 13.90 1.10 12.70 126.4 1.73
1.5m 9.0 8.4 13.70 1.20 12.08 109.7 1.77
#14121 10 Apr 2021 Approved Notes:

Great Cormorants, Pacific Black Duck, Moorhens, Masked Lapwings, Egret.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.0 8.3 17.80 125.8 2.02
1.5m 16.0 8.3 17.60 107.6 2.00
#14026 20 Mar 2021 Approved Notes:

 

Moorhens, Pacific black duck,Chestnut teal, Masked lapwing, Little pied cormorant.

Fishing @ pontoon.

 

We were confronted with different measuring mode on probe. Tds instead of ppt and micro siemens instead of mille siemens/cm. I have entered data shifting decimal point to reflect required readings.  (No worries, thanks; J.Obst).  

 

 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.0 8.3 20.90 1.50 1.71 19.7 2.21
1.5m 14.0 8.3 20.10 1.60 1.62 17.6 2.16
#13939 9 Jan 2021 Approved Notes:

Water clear.

Birds.  Moor hens, read warbler, great egret, pacific black duck, little black cormorant.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.5 21.90 0.40 4.80 54.5 0.86
2.0m 9.0 7.6 20.00 0.50 2.07 22.7 0.96
#13900 12 Dec 2020 Approved Notes:

Moorhens

Pacific Black Duck
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.4 8.1 19.30 1.00 8.21 90.1 2.03
1.7m 12.4 8.1 18.50 1.00 6.88 73.2 2.02
#13839 14 Nov 2020 Approved Notes:

Swamp hen purple ,Pacific black duck, Chestnut teal,Welcome Swallow, Reed warblers.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 24.0 8.5 19.70 1.00 15.06 161.5 1.89
1.6m 24.0 8.4 18.70 1.00 9.70 102.1 1.88
#13772 11 Jul 2020 Approved Notes:

Bird observations at site:

Little pied cormorants

dusky moorhens

Australasian grebe

Masked lapwing

Pacific black ducks
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.2 9.90 1.60 9.75 86.5 3.11
1.5m 9.0 8.5 9.80 1.60 8.60 76.2 3.11
#13726 20 Jun 2020 Approved Notes:

Flock of little black cormorants, coots
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.1 11.30 1.70 9.63 88.8 3.20
1.4m 9.0 7.9 11.20 1.70 9.28 85.5 3.21
#13638 14 Mar 2020 Approved Notes:

pacific black duck...many.                little pied cormorant...6-8

masked lapwing...2                          dusky moorhens...2

little black cormorant...6-8               magpie larks...2

chestnut teal...many.                       great egret...1

 

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 40.5 7.6 18.50 1.20 7.61 81.8 2.34
1.4m 40.5 7.8 18.50 1.20 7.45 79.8 2.35
#13565 8 Feb 2020 Approved Notes:

Tom Sheahan part of monitoring group.

Birds observed: Dusky Moorhens_4/5

Little black cormorants-2

Pacific black ducks-10/12

Chestnut teal-pair.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 27.0 8.2 21.60 1.30 9.54 111.0 2.52
1.4m 27.0 8.2 21.60 1.30 9.01 103.4 2.52
#13501 11 Jan 2020 Approved Notes:

Birds observed:

- 9 x Little Black Cormorant

- 12 x Moorhen

- 4 x Pacific Black Duck

- 3 x Purple Swamphen

 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.0 7.9 21.00 5.09 57.9 2.55
1.4m 16.0 7.9 21.10 4.20 47.0 2.55
#13450 14 Dec 2019 Approved Notes:

Tom Sheehan part of this monitoring session.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 8.3 18.60 1.30 8.80 92.5 2.55
1.6m 20.0 8.1 18.60 1.30 8.14 90.3 2.55
#13405 9 Nov 2019 Approved Notes:

Tom Sheehan part of monitoring group.

Dissolved oxygen reading failed. Meter to Debbie for checking.

Birds observed:Dusky moorhen, black duck, chestnut teal, intermediate egret and little black cormorant.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.5 8.4 15.90 1.20 0.00 0.0 2.37
1.7m 14.5 8.3 15.40 1.30 0.00 0.0 2.47
#13398 12 Oct 2019 Approved Notes:

Tom Sheehan part of monitoring group.

D.O. figures seem to be in excess.

Birds observed: Dusky moor hens, Eurasian coots, little grass bird or Reed warbler, superb fairy wren and Australian raven.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.0 8.4 16.80 1.20 15.17 162.9 2.28
1.5m 17.0 8.3 16.00 1.20 13.95 143.2 2.26
#13319 14 Sep 2019 Approved Notes:

River up over boat ramp entrance

Very brown-flow out
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 40.0 7.5 13.00 0.60 7.92 76.6 1.22
2.4m 40.0 7.5 11.70 0.60 7.25 67.1 1.20
#13247 10 Aug 2019 Approved Notes:

Tom Sheehan, Eleanor Cowell and James Cowell part of monitoring team.

Birds observed. Great Egret 1, Dusky Moorhens several, Little Black Cormorants several.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 11.5 7.8 10.20 1.00 8.56 76.2 1.89
2.0m 11.5 7.9 10.00 1.00 8.67 77.2 1.91
#13225 6 Jul 2019 Approved Notes:

Tom Sheehan part of monitoring group.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.9 10.10 1.60 14.47 102.2 3.07
1.5m 9.0 8.0 10.00 1.60 3.07 97.6 10.88
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