Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #8135
Date and Time Saturday 23rd February 2013 11:45am
Approved Approved

Notes

  • Water level in wetlands all around township greatly reduced.
  • Reeds show over 1m drop by sediment mark.
  • Fish stranded all around fishing platform (over 50 around 3-10cm long)

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 21.60 2.40 0.55 6.3 4.46
Previous 22.2 1.1 4.6 43.1 2.1
Median 15.1 1.30 8.01 78.10 2.6
0.5m 21.60 2.40 0.46 5.3 4.48
Previous 24.4 1.5 5.4 64.8 2.9
Median 14.5 1.30 8.01 78.10 2.6
1.0m 21.60 2.40 0.38 4.5 4.45
Previous 21.6 2.0 6.5 75.2 3.4
Median 14.9 3.10 7.57 82.20 5.8
1.5m 21.50 2.50 0.32 3.8 4.63
Previous 23.7 1.5 5.0 59.9 2.9
Median 14.7 3.10 7.57 82.20 5.8
2.0m 21.40 2.90 0.26 3.1 4.97
Previous 21.5 2.2 6.6 75.9 4.2
Median 15.5 20.10 6.60 74.80 32.6
2.5m 21.40 3.30 0.22 2.6 5.96
Previous 21.8 8.8 2.7 32.1 15.2
Median 15.5 20.10 6.40 73.40 32.6
3.0m 21.30 3.90 0.19 2.2 7.06
Previous 19.1 27.8 0.4 5.2 43.1
Median 15.8 28.80 4.86 53.90 44.5
3.5m 18.00 31.10 0.13 1.6 47.29
Previous 18.9 28.4 0.3 3.4 43.7
Median 15.7 28.80 4.86 53.90 44.5
3.9m 17.50 31.50 0.11 1.4 48.16
Previous 18.9 28.4 0.3 4.2 44.2
Median 15.7 29.20 5.17 60.10 45.1

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 6.7
Previous 0.1 10 6.9
Median 0.1 15 6.8
Bottom 3.9
Previous 4.8 15 7.0
Median 2.5 20 6.8

Other details

Max depth 3.95
Previous 4.85
Median 4.19
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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