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GMC Gellibrand River Estuary Mouth Observation Site

15 January 2010

Observation details

Overview

Estuary Gellibrand River Estuary
Site Gellibrand River Estuary Mouth Observation Site
Observation ID #3041
Date and Time Friday 15th January 2010 10:45am
Approved Approved

Notes

1.Very pale shallow discharge flowing out over sand build up at mouth (sand extends along channel from mouth to about 1/2 way to tunnel & has increased from last week)
2. Discharge only immediately around mouth. Some waves entering mouth and travelling into estuary
3.Steep front to beach and rocks at eastern end exposed
4.Strong south wind has cleared algae/scum from s/e side and taken it downstream. There is still a lot floating below the surface throughout the estuary and upstream
5.Estuary perch around 25cm are being caught in estuary (possibly due to extremely low water levels upstream) also Bream (30cm) and Trevally. Not as many mullet and most fish are small in size.
There are a large no. of juvenille fish in the sea grass and all along the edge of the estuary and channel

Mouth Observation

Mouth state Open
Previous
Flow Present? Yes
Previous
Flow Direction Out
Previous
Above Sea Above Estuary
Berm Height (m)
Berm Length (m)

Physical Condition

Current Mode
Wind Direction South South-West
Beaufort Scale Fresh breeze Moderate breeze
Sea State Moderate Moderate

Water Levels and Tides

Water Level Start Finish
Height (m) 0.43m 0.45m
Time (hh:mm) 10:45 12:05
Tidal influence Yes
Tidal Range Time Height
High 12:51 0.530
Low 09:31 0.460

Observation Documents

Link Date File name Description
15-01-2010 10:45 Photopoint GP.1
15-01-2010 10:45 Photopoint GP.2
15-01-2010 10:45 Photopoint GP.3
15-01-2010 10:45 Photopoint GP.4
15-01-2010 10:45 Photopoint GP.5
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