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M1 Stanley Street

Active Physico-Chemical 27-10-2013 - 08-02-2025

Merri River Estuary

124 results found (Displaying 1 - 25)
Date Status Details
8 Feb 2025 Pending Notes:

Pelican, Black winged stilts, White ibis, Pacific black duck, Moorhens, Black faced cormorant,White faced heron.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 22.0 7.1 20.10 15.00 6.71 81.0 24.60
2.4m 22.0 6.8 21.60 32.30 0.22 3.0 49.35
11 Jan 2025 Approved Notes:

Royal spoonbills, Pacific black ducks, Ibis, Cormorant.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 50.0 8.0 22.40 2.80 38.21 362.9 5.25
2.4m 50.0 6.9 21.10 31.70 0.23 2.6 48.46
7 Dec 2024 Approved Notes:

Pied Cormorant, Ibis, Ducks.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.0 7.5 21.20 2.30 8.85 102.0 4.67
2.0m 17.0 7.3 19.20 29.40 1.80 23.5 45.39
9 Nov 2024 Approved Notes:

Little pied cormorant, black swans, coots, chestnut teal & grey teal?, swallows, magpie larks, willy wagtails, moorhens, shell duck.

Smallerbrown shore birds unidentified.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 0.0 7.4 15.80 8.00 9.96 105.7 13.88
2.4m 0.0 7.6 17.00 30.10 7.75 96.1 46.30
12 Oct 2024 Approved Notes:

2 black swans, 4 ibis, 10 coots, 4 swallows.

 

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 11.0 7.9 17.50 2.30 9.18 96.3 4.31
2.3m 11.0 7.5 16.00 32.00 1.74 21.1 48.94
14 Sep 2024 Approved Notes:

Great data, really strong salt wedge observed which correlates to low D.O.s as often seen.  Thanks J.Obst.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 30.0 8.5 12.90 2.40 13.93 135.1 4.45
2.4m 30.0 8.0 14.00 28.90 0.27 3.0 44.72
10 Aug 2024 Approved Notes:

Chestnut teal (many), Australasian coots (many), Great cormorant, Silver gull, Swallows, Hoar headed grebe & Pacific black duck. 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 19.0 8.5 11.60 1.30 12.80 117.7 2.02
2.0m 19.0 8.7 13.50 31.50 7.45 87.4 48.32
13 Jul 2024 Approved Notes:

Little black cormorants (many), australasian coots, chestnut teal, pacific black duck, new holland honey eater, purple swamp hens (many), Little pied cormorants, pelican, welcome swallow.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.8 12.60 3.70 8.57 83.5 6.47
2.3m 10.0 7.8 13.20 31.50 6.54 78.0 48.38
8 Jun 2024 Approved Notes:

Black swans, purple swamp hens, australasian coots, little pied cormorants, pacific black ducks, chestnut teals, white ibis, greater cormorant, masked lapwing.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 8.1 12.10 3.80 11.72 111.0 6.76
2.3m 20.0 7.6 14.40 33.10 6.98 82.8 50.50
11 May 2024 Approved Notes:

Birds present at site

White ibis

pacific black ducks

chestnut teal

little black cormorants

pied cormorants

willy wagtail
Australian coot

purple swamphens

Royal spoonbill 

welcome swallows

grey herons

 

Great results - and amazing bird observations!! J.Obst.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 5.0 7.5 16.00 18.00 7.01 78.5 29.07
2.0m 5.0 7.7 16.40 33.00 4.46 55.2 50.30
13 Apr 2024 Approved Notes:

New batteries in the YSI meter.

Birds present at site

Seagulls

Black Swan 

Ibis

Coots

Pied commorant
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 7.0 7.2 16.30 4.20 3.14 33.5 7.55
1.8m 7.0 7.4 17.90 32.20 4.78 62.9 49.24
16 Mar 2024 Approved Notes:

Birds present at site.

Pelicans

White Ibis

White faced heron

Greater Cormorant

Chestnut teal

Pacific black duck
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.0 7.4 20.90 6.50 6.83 79.2 11.46
2.7m 12.0 7.2 21.60 32.40 0.02 0.2 49.30
10 Feb 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.0 7.9 19.50 4.10 6.95 76.2 7.48
1.5m 12.0 7.5 19.90 31.70 0.17 3.9 48.48
13 Jan 2024 Approved Notes:

chestnut teals, pacific black duck, purple swamp hen, white ibis
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.7 22.10 2.30 3.46 39.5 4.40
2.0m 9.0 7.7 18.20 31.40 4.95 64.0 48.05
9 Dec 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.4 20.30 1.70 6.38 71.2 3.17
1.0m 10.0 7.1 21.70 8.60 6.82 80.2 15.81
11 Nov 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 5.0 7.6 20.10 1.90 7.62 84.9 3.66
2.0m 5.0 7.3 17.50 31.10 0.20 4.5 47.58
14 Oct 2023 Approved Notes:

Cormorants- large black (yellow faced)

                     small black

                     ducks (pacific black)

                     moorhens

                    chestnut teals
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.0 6.8 15.70 3.10 5.54 56.2 5.77
2.0m 12.0 7.7 15.60 32.40 6.26 75.1 49.47
9 Sep 2023 Approved Notes:

UR fault on ph meter. Calibration fail. - No worries, J.Obst

 

Results look good; strong salt wedge forming due to declining inflows.  Thanks Jarred.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.0 10.40 3.30 9.52 88.0 5.95
2.4m 17.0 12.00 27.90 5.54 60.2 43.41
12 Aug 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.9 13.30 1.50 6.50 65.5 3.01
2.4m 9.0 7.5 12.10 1.50 6.80 63.7 2.89
15 Jul 2023 Approved Notes:

Chestnut teal, Pacific black duck, Shell duck, White faced heron, Purple swamp hen. Greater egret, Pied cormorant.

 

Eleanor Cowell and James Cowell Samplers.

 

Thansk everyone, great results.  Very fresh and consistent results following some very wet weather!  Cheers Jarred.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.0 6.8 10.80 0.80 7.40 67.0 1.59
2.5m 16.0 6.8 10.80 0.80 7.21 65.5 1.59
17 Jun 2023 Approved Notes:

Little Pied Cormorant, Chestnut Teal (lots), Coots (lots), Pacific gull, Moorhen, Aust. Grebe, White Faced Heron, Great Egret.

Lots of plant debris on surface of river.

 

Other Samplers; 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 10.0 6.8 10.70 1.30 7.50 68.9 3.60
2.7m 10.0 6.8 13.30 29.70 8.12 93.2 45.82
13 May 2023 Approved Notes:

Pacific ducks, Pied cormorants, White faced herons, Waterhen.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.7 13.50 1.50 5.37 52.7 2.79
2.0m 9.0 7.5 15.90 26.70 0.17 2.0 41.57
15 Apr 2023 Approved Notes:

Thanks everyone!  Results remain really interesting and fantastic photopoints capturing the current mouth condition.  Interestingly, there's been enough flow to keep the mouth open, but not enough to completely flush the lower depths which still contain some older salty water.  It will be very interesting to see if tomorrow's results have improved the lower depths given we've had a fantastic month of autumn rainfall which has resulted in the first sign of freshwater inflows into our estuaries.  Regards Jarred.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.3 16.60 3.90 7.77 80.4 7.04
2.0m 9.0 7.3 17.40 27.90 2.15 26.1 43.26
11 Mar 2023 Approved Notes:

Pacific black duck, Chestnut teal, Moorhens with chicks.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.7 17.90 2.40 6.40 68.5 4.38
2.0m 9.0 6.6 18.10 30.40 0.18 2.3 46.76
11 Feb 2023 Approved Notes:

We returned to Edwards Bridge for this session.

Pacific black duck, Chestnut teal.

 

Jarred - thanks everyone for your monitoring.  Results are very interesting, particularly the low D.O, but I believe your values are true and have picked up on an algal bloom.  This is quite common in this part of the estuary, and i've since seen some very high and very low readings over each diurnal (daily) cycle as the algal produces oxygen during sunlight, and then consumes it during darkness!  
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.8 20.30 5.10 3.65 42.0 9.01
1.9m 9.0 7.0 18.70 33.90 3.85 56.0 51.50
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