Observation details

Overview

Estuary Gellibrand River Estuary
Site Bridge at Rivernook
Observation ID #12537
Date and Time Friday 16th November 2018 09:45am
Approved Approved

Notes

Water level surprisingly high compared with G5

No water across causeway

Remains of skinned dead eel in water beside bridge & old bait trap hung on post

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 15.20 0.10 7.74 77.3 0.31 Wind s. 3 verycold
Previous 16.4 0.9 6.2 64.3 1.7
Median 17.3 0.30 6.20 64.30 0.7
0.5m 15.20 0.10 7.45 75.8 0.37 E.C. erratic
Previous 15.2 0.1 7.3 73.3 0.3
Median 18.1 0.30 6.20 66.20 0.7
1.0m 15.10 0.20 7.65 77.1 0.33 "
Previous 15.5 0.9 5.6 57.0 1.8
Median 17.3 0.40 5.99 62.50 0.8
1.5m 15.20 0.20 7.64 75.7 0.47 E.C .extremely erratic
Previous 15.2 0.1 7.4 72.9 0.3
Median 18.0 0.40 6.13 65.30 0.8
2.0m 15.20 0.20 7.64 76.3 0.47 "
Previous 13.8 25.2 2.1 23.5 39.5
Median 18.1 0.50 4.32 48.70 3.3
2.5m 15.10 0.30 7.63 76.1 0.50 " difficult to read
Previous 15.2 0.1 7.4 74.0 0.3
Median 18.1 0.50 4.58 48.90 3.3
3.0m 15.10 0.30 7.51 74.2 0.58 "
Previous 15.2 0.1 7.4 73.7 0.3
Median 18.1 22.30 4.57 48.90 35.3
3.5m 15.10 19.90 4.01 48.6 31.85
Previous 10.4 0.1 9.5 84.8 0.3
Median 18.1 22.30 1.95 24.80 35.3
4.0m 15.70 20.80 3.96 45.6 33.15
Previous 15.2 0.1 7.4 73.3 0.3
Median 18.1 26.20 4.40 49.00 40.9
4.5m 15.70 21.00 4.07 47.0 33.51 Probe ebbing & flowing
Previous 10.4 0.1 9.5 85.1 0.3
Median 18.1 26.20 1.92 24.40 40.9
5.0m 15.70 21.10 3.89 44.9 33.60
Previous 15.2 0.1 7.2 72.0 0.3
Median 17.6 28.90 0.38 4.60 44.2

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 19 6.8
Previous 0.1 19 7.0
Median 0.1 10 6.7
Bottom 5.1 9 7.1
Previous 2.9 40 6.8
Median 5.1 9 6.8

Other details

Max depth 5.23
Previous 3.00
Median 5.23
Flow estimate Medium

Observation Documents

Link Date File name Description

Preceding Observations

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