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Government of Western Australia - Department of Fisheries

One of the dead starfish washed up at Cottesloe Beach.

Monday 23 October 2017

Marine fish kill at Cottesloe under investigation

Fisheries and Marine Officers have been investigating a marine fish kill event at Cottesloe Beach since Thursday 19 October.

Following a report of 50-60 dead starfish, Fisheries and Marine Officers assessed the situation and collected samples, finding less than 30 dead specimens. No other dead aquatic animals were reported or sighted.

The affected starfish species appear to be the sand sea star, local to Western Australia and the Whitsundays, Queensland.

We have investigated similar starfish deaths in previous years and these have been attributed to lifecycle events. Some aquatic animals perish during reproduction as part of their natural lifecycle. 

Animals such as these can also be washed ashore when swells increase or change and when there are storms.

We will continue to monitor the area over the coming days and respond to enquiries.

As with all fish kills, we recommend as a precaution people do not collect, handle, or move any dead starfish.

More details.

Last modified: 23/10/2017 4:15 PM

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