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  5. 27-08-2025

Estuary event details

Estuary Anglesea River Estuary
Region Corangamite CMA
Event type water quality
Date and time 27 August 2025 09:00am
Description
  • Corangamite CMA staff visited the Anglesea River estuary seven days after an artificial estuary opening that took place on the 20th of August. 
  • Water was still flowing steadily out to sea however the channel with flowing water was narrower than what had been seen earlier in the week. 
  • Water level recorded from the  235278A ANGLESEA RIVER AT GREAT OCEAN ROAD BRIDGE monitoring station has dropped from 1.738 m at the time of the opening to 1.38 m at 8:00am. 
  • Clumps of seaweed were seen in the channel that has been excavated.  This indicates that sea water is pushing up into the lower part of the estuary at high tide.
  • Strong winds were blowing sand across the berm while the mouth condition data sheet was being completed.
  • pacific and kelp gulls were seen feeding on dead fish at the river mouth. 
  • a lot of the dead fish seem to have been removed by birds.  There was a small bodied fish that looked to have recently died.  It was identified as a Bridled Goby.   This is the first time during the acid flush event that this species has been found dead at the river mouth.  
  • The water colour at the lower end of the estuary was milky in appearance and blue/green/yellow in colour (see photo of monitors at boat sheds)
  • The water colour at the upstream extent of the estuary was a burnt orange iron colour (see photos taken at Coalmine Road).  The water was the same shade as the socks worn by one of the monitors. 
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