Observation details

Overview

Estuary Gellibrand River Estuary
Site Great Ocean Road Bridge at Lower Gellibrand
Observation ID #3863
Date and Time Sunday 11th July 2010 12:50pm
Approved Approved

Notes

1. AHD 1.32
2. PH top 7.0 bottom reading not taken
3. NOP 0.881 166.9 SOP. 1.389 182.3
4. Rainfall 04.07.10 - 11.07.10 = 9ml.
5. Flats around G5 have less flood water, but show increase of flowering Aponogeton Dist.
6. Birds difficult to count from road because of reduced water.
Swans 155+ also 2 swans with 7 young north Princetown wetland. 1 other sitting at G5, Grebe 1, Shellduck 14+, Swamp harrier 2, White headed herons 16, Large White Egret 1, White necked Heron 2, Small pied comorants 2, Unidentified ducks 250+

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 9.90 0.20 9.37 83.3 .3175
Previous 9.7 0.2 9.6 84.8 0.4
Median 14.3 0.10 7.96 77.20 0.3
0.5m 9.80 0.20 9.38 82.8 .319.6
Previous 8.9 0.1 9.4 81.6 0.3
Median 14.9 0.10 7.96 77.20 0.3
1.0m 0.70 0.20 9.41 83.1 .3200
Previous 9.6 0.2 9.7 84.9 0.3
Median 14.3 0.10 7.91 75.60 0.3
1.5m 9.60 0.20 9.41 82.8 .3233
Previous 8.9 0.1 9.5 82.1 0.3
Median 14.6 0.10 7.91 75.60 0.3
2.0m 9.60 0.20 9.37 82.4 .3331
Previous 9.6 0.2 9.7 85.3 0.4
Median 11.7 0.10 8.23 76.40 0.3
2.4m 9.70 0.20 9.32 82.0 .3383
Previous 9.0 0.1 9.4 80.8 0.3
Median 11.9 0.10 8.23 76.40 0.3

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 20
Previous 0.1 20 7.0
Median 0.1 20 7.0
Bottom
Previous 2.0 30 6.5
Median 2.0 30 7.0

Other details

Max depth 2.50
Previous 3.10
Median 2.33
Flow estimate Medium

Observation Documents

No documents found for this observation

Preceding Observations

C Estuary is closed to the sea. O Estuary is open to the sea. P Perched
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