The Trust alerted the public in July 2010 after a number of jellyfish, recently identified as Carybdea xaymacana, were seen in the SwanRiver between Preston Point and FremantleHarbour.
On 20 August 2010, a member of the public reported a smaller number of these jellyfish in FreshwaterBay.
While this species is a common ‘stinger’ in waters off Perth and between Geraldton and Busselton, it is unusual for it to extend so far upstream into the SwanRiver.
The Trust reminds the public to avoid contact with these jellyfish as they can cause a nasty sting.
The Department of Health recommends that stings should be treated immediately by flushing with undiluted household vinegar. Do not rub the sting. Stings cause moderate pain for up to two hours, and some swelling and redness. Medical assistance should be sought if shortness of breath is experienced or symptoms persist or worsen. If in doubt seek medical advice.
The Trust encourages the community to report any river issues to the Trust on (08) 9278 0900 during office hours or 0419 192 845 after hours.
An image of the jellyfish is available at www.swanrivertrust.wa.gov.au.
An image of the jellyfish is available at www.swanrivertrust.wa.gov.au.